def test_harnn():
"""Test HARNN model."""
# Load data
logger.info("✔︎ Loading data...")
logger.info("Recommended padding Sequence length is: {0}".format(
FLAGS.pad_seq_len))
logger.info("✔︎ Test data processing...")
test_data = dh.load_data_and_labels(FLAGS.test_data_file,
FLAGS.num_classes_list,
FLAGS.total_classes,
FLAGS.embedding_dim,
data_aug_flag=False)
logger.info("✔︎ Test data padding...")
x_test, y_test, y_test_tuple = dh.pad_data(test_data, FLAGS.pad_seq_len)
y_test_labels = test_data.labels
# Load harnn model
BEST_OR_LATEST = input("☛ Load Best or Latest Model?(B/L): ")
while not (BEST_OR_LATEST.isalpha()
and BEST_OR_LATEST.upper() in ['B', 'L']):
BEST_OR_LATEST = input(
"✘ The format of your input is illegal, please re-input: ")
if BEST_OR_LATEST.upper() == 'B':
logger.info("✔︎ Loading best model...")
checkpoint_file = cm.get_best_checkpoint(FLAGS.best_checkpoint_dir,
select_maximum_value=True)
else:
logger.info("✔︎ Loading latest model...")
checkpoint_file = tf.train.latest_checkpoint(FLAGS.checkpoint_dir)
logger.info(checkpoint_file)
graph = tf.Graph()
with graph.as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=FLAGS.allow_soft_placement,
log_device_placement=FLAGS.log_device_placement)
session_conf.gpu_options.allow_growth = FLAGS.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph(
"{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
# Get the placeholders from the graph by name
input_x = graph.get_operation_by_name("input_x").outputs[0]
input_y_first = graph.get_operation_by_name(
"input_y_first").outputs[0]
input_y_second = graph.get_operation_by_name(
"input_y_second").outputs[0]
input_y_third = graph.get_operation_by_name(
"input_y_third").outputs[0]
input_y = graph.get_operation_by_name("input_y").outputs[0]
dropout_keep_prob = graph.get_operation_by_name(
"dropout_keep_prob").outputs[0]
beta = graph.get_operation_by_name("beta").outputs[0]
is_training = graph.get_operation_by_name("is_training").outputs[0]
# Tensors we want to evaluate
first_attention = graph.get_operation_by_name(
"first-attention/attention").outputs[0]
first_visual = graph.get_operation_by_name(
"first-output/visual").outputs[0]
second_visual = graph.get_operation_by_name(
"second-output/visual").outputs[0]
third_visual = graph.get_operation_by_name(
"third-output/visual").outputs[0]
scores = graph.get_operation_by_name("output/scores").outputs[0]
loss = graph.get_operation_by_name("loss/loss").outputs[0]
# Split the output nodes name by '|' if you have several output nodes
output_node_names = "first-output/scores|second-output/scores|third-output/scores|output/scores"
# Save the .pb model file
output_graph_def = tf.graph_util.convert_variables_to_constants(
sess, sess.graph_def, output_node_names.split("|"))
tf.train.write_graph(output_graph_def,
"graph",
"graph-harnn-{0}.pb".format(MODEL),
as_text=False)
# Generate batches for one epoch
batches = dh.batch_iter(list(
zip(x_test, y_test, y_test_tuple, y_test_labels)),
FLAGS.batch_size,
1,
shuffle=False)
test_counter, test_loss = 0, 0.0
# Collection
true_labels = []
predicted_labels = []
predicted_scores = []
# Collect for calculating metrics
true_onehot_labels = []
predicted_onehot_scores = []
predicted_onehot_labels_ts = []
predicted_onehot_labels_tk = [[] for _ in range(FLAGS.top_num)]
for batch_test in batches:
x_batch_test, y_batch_test, y_batch_test_tuple, y_batch_test_labels = zip(
*batch_test)
y_batch_test_first = [i[0] for i in y_batch_test_tuple]
y_batch_test_second = [j[1] for j in y_batch_test_tuple]
y_batch_test_third = [k[2] for k in y_batch_test_tuple]
feed_dict = {
input_x: x_batch_test,
input_y_first: y_batch_test_first,
input_y_second: y_batch_test_second,
input_y_third: y_batch_test_third,
input_y: y_batch_test,
dropout_keep_prob: 1.0,
beta: FLAGS.beta,
is_training: False
}
batch_first_attention, batch_first_visual, batch_second_visual, batch_third_visual, batch_scores, cur_loss = \
sess.run([first_attention, first_visual, second_visual, third_visual, scores, loss], feed_dict)
# Prepare for calculating metrics
for onehot_labels in y_batch_test:
true_onehot_labels.append(onehot_labels)
for onehot_scores in batch_scores:
predicted_onehot_scores.append(onehot_scores)
# Get the predicted labels by threshold
batch_predicted_labels_ts, batch_predicted_scores_ts = \
dh.get_label_threshold(scores=batch_scores, threshold=FLAGS.threshold)
# Add results to collection
for labels in y_batch_test_labels:
true_labels.append(labels)
for labels in batch_predicted_labels_ts:
predicted_labels.append(labels)
for values in batch_predicted_scores_ts:
predicted_scores.append(values)
# Get one-hot prediction by threshold
batch_predicted_onehot_labels_ts = \
dh.get_onehot_label_threshold(scores=batch_scores, threshold=FLAGS.threshold)
for onehot_labels in batch_predicted_onehot_labels_ts:
predicted_onehot_labels_ts.append(onehot_labels)
# Get one-hot prediction by topK
for i in range(FLAGS.top_num):
batch_predicted_onehot_labels_tk = dh.get_onehot_label_topk(
scores=batch_scores, top_num=i + 1)
for onehot_labels in batch_predicted_onehot_labels_tk:
predicted_onehot_labels_tk[i].append(onehot_labels)
test_loss = test_loss + cur_loss
test_counter = test_counter + 1
# Calculate Precision & Recall & F1
test_pre_ts = precision_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts),
average='micro')
test_rec_ts = recall_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts),
average='micro')
test_F_ts = f1_score(y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts),
average='micro')
# Calculate the average AUC
test_auc = roc_auc_score(y_true=np.array(true_onehot_labels),
y_score=np.array(predicted_onehot_scores),
average='micro')
# Calculate the average PR
test_prc = average_precision_score(
y_true=np.array(true_onehot_labels),
y_score=np.array(predicted_onehot_scores),
average="micro")
test_loss = float(test_loss / test_counter)
logger.info(
"☛ All Test Dataset: Loss {0:g} | AUC {1:g} | AUPRC {2:g}".
format(test_loss, test_auc, test_prc))
# Predict by threshold
logger.info(
"☛ Predict by threshold: Precision {0:g}, Recall {1:g}, F1 {2:g}"
.format(test_pre_ts, test_rec_ts, test_F_ts))
# Save the prediction result
if not os.path.exists(SAVE_DIR):
os.makedirs(SAVE_DIR)
dh.create_prediction_file(output_file=SAVE_DIR +
"/predictions.json",
data_id=test_data.patent_id,
all_labels=true_labels,
all_predict_labels=predicted_labels,
all_predict_scores=predicted_scores)
logger.info("✔︎ Done.")
def visualize():
"""Visualize HARNN model."""
# Load word2vec model
word2idx, embedding_matrix = dh.load_word2vec_matrix(args.word2vec_file)
# Load data
logger.info("Loading data...")
logger.info("Data processing...")
test_data = dh.load_data_and_labels(args, args.test_file, word2idx)
# Load harnn model
OPTION = dh._option(pattern=1)
if OPTION == 'B':
logger.info("Loading best model...")
checkpoint_file = cm.get_best_checkpoint(BEST_CPT_DIR,
select_maximum_value=True)
else:
logger.info("Loading latest model...")
checkpoint_file = tf.train.latest_checkpoint(CPT_DIR)
logger.info(checkpoint_file)
graph = tf.Graph()
with graph.as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=args.allow_soft_placement,
log_device_placement=args.log_device_placement)
session_conf.gpu_options.allow_growth = args.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph(
"{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
# Get the placeholders from the graph by name
input_x = graph.get_operation_by_name("input_x").outputs[0]
input_y_first = graph.get_operation_by_name(
"input_y_first").outputs[0]
input_y_second = graph.get_operation_by_name(
"input_y_second").outputs[0]
input_y_third = graph.get_operation_by_name(
"input_y_third").outputs[0]
input_y_fourth = graph.get_operation_by_name(
"input_y_fourth").outputs[0]
input_y = graph.get_operation_by_name("input_y").outputs[0]
dropout_keep_prob = graph.get_operation_by_name(
"dropout_keep_prob").outputs[0]
alpha = graph.get_operation_by_name("alpha").outputs[0]
is_training = graph.get_operation_by_name("is_training").outputs[0]
# Tensors we want to evaluate
first_visual = graph.get_operation_by_name(
"first-output/visual").outputs[0]
second_visual = graph.get_operation_by_name(
"second-output/visual").outputs[0]
third_visual = graph.get_operation_by_name(
"third-output/visual").outputs[0]
fourth_visual = graph.get_operation_by_name(
"fourth-output/visual").outputs[0]
# Split the output nodes name by '|' if you have several output nodes
output_node_names = "first-output/visual|second-output/visual|third-output/visual|fourth-output/visual|output/scores"
# Save the .pb model file
output_graph_def = tf.graph_util.convert_variables_to_constants(
sess, sess.graph_def, output_node_names.split("|"))
tf.train.write_graph(output_graph_def,
"graph",
"graph-harnn-{0}.pb".format(MODEL),
as_text=False)
# Generate batches for one epoch
batches = dh.batch_iter(list(create_input_data(test_data)),
args.batch_size,
1,
shuffle=False)
for batch_id, batch_test in enumerate(batches):
x, x_content, sec, subsec, group, subgroup, y_onehot = zip(
*batch_test)
feed_dict = {
input_x: x,
input_y_first: sec,
input_y_second: subsec,
input_y_third: group,
input_y_fourth: subgroup,
input_y: y_onehot,
dropout_keep_prob: 1.0,
alpha: args.alpha,
is_training: False
}
batch_first_visual, batch_second_visual, batch_third_visual, batch_fourth_visual = \
sess.run([first_visual, second_visual, third_visual, fourth_visual], feed_dict)
batch_visual = [
batch_first_visual, batch_second_visual,
batch_third_visual, batch_fourth_visual
]
seq_len = len(x_content[0])
pad_len = len(batch_first_visual[0])
length = (pad_len if seq_len >= pad_len else seq_len)
visual_list = []
for visual in batch_visual:
visual_list.append(
normalization(visual[0].tolist(), length))
create_visual_file(batch_id, x_content, visual_list, seq_len)
logger.info("Done.")
def test_cnn():
"""Test CNN model."""
# Load data
logger.info("✔︎ Loading data...")
logger.info("Recommended padding Sequence length is: {0}".format(FLAGS.pad_seq_len))
logger.info("✔︎ Test data processing...")
test_data = dh.load_data_and_labels(FLAGS.test_data_file, FLAGS.embedding_dim)
logger.info("✔︎ Test data padding...")
x_test_front, x_test_behind, y_test = dh.pad_data(test_data, FLAGS.pad_seq_len)
y_test_labels = test_data.labels
# Load cnn model
BEST_OR_LATEST = input("☛ Load Best or Latest Model?(B/L): ")
while not (BEST_OR_LATEST.isalpha() and BEST_OR_LATEST.upper() in ['B', 'L']):
BEST_OR_LATEST = input("✘ The format of your input is illegal, please re-input: ")
if BEST_OR_LATEST == 'B':
logger.info("✔︎ Loading best model...")
checkpoint_file = cm.get_best_checkpoint(FLAGS.best_checkpoint_dir, select_maximum_value=True)
else:
logger.info("✔︎ Loading latest model...")
checkpoint_file = tf.train.latest_checkpoint(FLAGS.checkpoint_dir)
logger.info(checkpoint_file)
graph = tf.Graph()
with graph.as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=FLAGS.allow_soft_placement,
log_device_placement=FLAGS.log_device_placement)
session_conf.gpu_options.allow_growth = FLAGS.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph("{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
# Get the placeholders from the graph by name
input_x_front = graph.get_operation_by_name("input_x_front").outputs[0]
input_x_behind = graph.get_operation_by_name("input_x_behind").outputs[0]
input_y = graph.get_operation_by_name("input_y").outputs[0]
dropout_keep_prob = graph.get_operation_by_name("dropout_keep_prob").outputs[0]
is_training = graph.get_operation_by_name("is_training").outputs[0]
# Tensors we want to evaluate
predictions = graph.get_operation_by_name("output/predictions").outputs[0]
topKPreds = graph.get_operation_by_name("output/topKPreds").outputs[0]
accuracy = graph.get_operation_by_name("accuracy/accuracy").outputs[0]
loss = graph.get_operation_by_name("loss/loss").outputs[0]
# Split the output nodes name by '|' if you have several output nodes
output_node_names = "output/logits|output/predictions|output/softmax_scores|output/topKPreds"
# Save the .pb model file
output_graph_def = tf.graph_util.convert_variables_to_constants(sess, sess.graph_def,
output_node_names.split("|"))
tf.train.write_graph(output_graph_def, "graph", "graph-cnn-{0}.pb".format(MODEL), as_text=False)
# Generate batches for one epoch
batches = dh.batch_iter(list(zip(x_test_front, x_test_behind, y_test, y_test_labels)),
FLAGS.batch_size, 1, shuffle=False)
# Collect the predictions here
all_labels = []
all_predicted_labels = []
all_predicted_values = []
for index, x_test_batch in enumerate(batches):
x_batch_front, x_batch_behind, y_batch, y_batch_labels = zip(*x_test_batch)
feed_dict = {
input_x_front: x_batch_front,
input_x_behind: x_batch_behind,
input_y: y_batch,
dropout_keep_prob: 1.0,
is_training: False
}
all_labels = np.append(all_labels, y_batch_labels)
batch_predicted_labels = sess.run(predictions, feed_dict)
all_predicted_labels = np.concatenate([all_predicted_labels, batch_predicted_labels])
batch_predicted_values = sess.run(topKPreds, feed_dict)
all_predicted_values = np.append(all_predicted_values, batch_predicted_values)
batch_loss = sess.run(loss, feed_dict)
batch_acc = sess.run(accuracy, feed_dict)
logger.info("✔︎ Test batch {0}: loss {1:g}, accuracy {2:g}.".format((index+1), batch_loss, batch_acc))
# Save the prediction result
if not os.path.exists(SAVE_DIR):
os.makedirs(SAVE_DIR)
dh.create_prediction_file(output_file=SAVE_DIR + "/predictions.json", front_data_id=test_data.front_testid,
behind_data_id=test_data.behind_testid, all_labels=all_labels,
all_predict_labels=all_predicted_labels, all_predict_values=all_predicted_values)
logger.info("✔︎ Done.")
def test_abcnn():
"""Test ABCNN model."""
# Print parameters used for the model
dh.tab_printer(args, logger)
# Load word2vec model
word2idx, embedding_matrix = dh.load_word2vec_matrix(args.word2vec_file)
# Load data
logger.info("Loading data...")
logger.info("Data processing...")
test_data = dh.load_data_and_labels(args, args.test_file, word2idx)
# Load abcnn model
OPTION = dh._option(pattern=1)
if OPTION == 'B':
logger.info("Loading best model...")
checkpoint_file = cm.get_best_checkpoint(BEST_CPT_DIR,
select_maximum_value=True)
else:
logger.info("Loading latest model...")
checkpoint_file = tf.train.latest_checkpoint(CPT_DIR)
logger.info(checkpoint_file)
graph = tf.Graph()
with graph.as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=args.allow_soft_placement,
log_device_placement=args.log_device_placement)
session_conf.gpu_options.allow_growth = args.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph(
"{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
# Get the placeholders from the graph by name
input_x_front = graph.get_operation_by_name(
"input_x_front").outputs[0]
input_x_behind = graph.get_operation_by_name(
"input_x_behind").outputs[0]
input_y = graph.get_operation_by_name("input_y").outputs[0]
dropout_keep_prob = graph.get_operation_by_name(
"dropout_keep_prob").outputs[0]
is_training = graph.get_operation_by_name("is_training").outputs[0]
# Tensors we want to evaluate
scores = graph.get_operation_by_name("output/topKPreds").outputs[0]
predictions = graph.get_operation_by_name(
"output/topKPreds").outputs[1]
loss = graph.get_operation_by_name("loss/loss").outputs[0]
# Split the output nodes name by '|' if you have several output nodes
output_node_names = "output/topKPreds"
# Save the .pb model file
output_graph_def = tf.graph_util.convert_variables_to_constants(
sess, sess.graph_def, output_node_names.split("|"))
tf.train.write_graph(output_graph_def,
"graph",
"graph-abcnn-{0}.pb".format(MODEL),
as_text=False)
# Generate batches for one epoch
batches_test = dh.batch_iter(list(create_input_data(test_data)),
args.batch_size,
1,
shuffle=False)
# Collect the predictions here
test_counter, test_loss = 0, 0.0
true_labels = []
predicted_labels = []
predicted_scores = []
for batch_test in batches_test:
x_f, x_b, y_onehot = zip(*batch_test)
feed_dict = {
input_x_front: x_f,
input_x_behind: x_b,
input_y: y_onehot,
dropout_keep_prob: 1.0,
is_training: False
}
batch_predicted_scores, batch_predicted_labels, batch_loss \
= sess.run([scores, predictions, loss], feed_dict)
for i in y_onehot:
true_labels.append(np.argmax(i))
for j in batch_predicted_scores:
predicted_scores.append(j[0])
for k in batch_predicted_labels:
predicted_labels.append(k[0])
test_loss = test_loss + batch_loss
test_counter = test_counter + 1
test_loss = float(test_loss / test_counter)
# Calculate Precision & Recall & F1
test_acc = accuracy_score(y_true=np.array(true_labels),
y_pred=np.array(predicted_labels))
test_pre = precision_score(y_true=np.array(true_labels),
y_pred=np.array(predicted_labels),
average='micro')
test_rec = recall_score(y_true=np.array(true_labels),
y_pred=np.array(predicted_labels),
average='micro')
test_F1 = f1_score(y_true=np.array(true_labels),
y_pred=np.array(predicted_labels),
average='micro')
# Calculate the average AUC
test_auc = roc_auc_score(y_true=np.array(true_labels),
y_score=np.array(predicted_scores),
average='micro')
logger.info(
"All Test Dataset: Loss {0:g} | Acc {1:g} | Precision {2:g} | "
"Recall {3:g} | F1 {4:g} | AUC {5:g}".format(
test_loss, test_acc, test_pre, test_rec, test_F1,
test_auc))
# Save the prediction result
if not os.path.exists(SAVE_DIR):
os.makedirs(SAVE_DIR)
dh.create_prediction_file(output_file=SAVE_DIR +
"/predictions.json",
front_data_id=test_data['f_id'],
behind_data_id=test_data['b_id'],
true_labels=true_labels,
predict_labels=predicted_labels,
predict_scores=predicted_scores)
logger.info("All Done.")
def train_rcnn():
"""Training RCNN model."""
# Load sentences, labels, and training parameters
logger.info("✔︎ Loading data...")
logger.info("✔︎ Training data processing...")
train_data = dh.load_data_and_labels(FLAGS.training_data_file,
FLAGS.num_classes,
FLAGS.embedding_dim,
data_aug_flag=False)
logger.info("✔︎ Validation data processing...")
val_data = dh.load_data_and_labels(FLAGS.validation_data_file,
FLAGS.num_classes,
FLAGS.embedding_dim,
data_aug_flag=False)
logger.info("Recommended padding Sequence length is: {0}".format(
FLAGS.pad_seq_len))
logger.info("✔︎ Training data padding...")
x_train, y_train = dh.pad_data(train_data, FLAGS.pad_seq_len)
logger.info("✔︎ Validation data padding...")
x_val, y_val = dh.pad_data(val_data, FLAGS.pad_seq_len)
# Build vocabulary
VOCAB_SIZE, pretrained_word2vec_matrix = dh.load_word2vec_matrix(
FLAGS.embedding_dim)
# Build a graph and rcnn object
with tf.Graph().as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=FLAGS.allow_soft_placement,
log_device_placement=FLAGS.log_device_placement)
session_conf.gpu_options.allow_growth = FLAGS.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
rcnn = TextRCNN(sequence_length=FLAGS.pad_seq_len,
num_classes=FLAGS.num_classes,
vocab_size=VOCAB_SIZE,
lstm_hidden_size=FLAGS.lstm_hidden_size,
fc_hidden_size=FLAGS.fc_hidden_size,
embedding_size=FLAGS.embedding_dim,
embedding_type=FLAGS.embedding_type,
filter_sizes=list(
map(int, FLAGS.filter_sizes.split(','))),
num_filters=FLAGS.num_filters,
l2_reg_lambda=FLAGS.l2_reg_lambda,
pretrained_embedding=pretrained_word2vec_matrix)
# Define training procedure
with tf.control_dependencies(
tf.get_collection(tf.GraphKeys.UPDATE_OPS)):
learning_rate = tf.train.exponential_decay(
learning_rate=FLAGS.learning_rate,
global_step=rcnn.global_step,
decay_steps=FLAGS.decay_steps,
decay_rate=FLAGS.decay_rate,
staircase=True)
optimizer = tf.train.AdamOptimizer(learning_rate)
grads, vars = zip(*optimizer.compute_gradients(rcnn.loss))
grads, _ = tf.clip_by_global_norm(grads,
clip_norm=FLAGS.norm_ratio)
train_op = optimizer.apply_gradients(
zip(grads, vars),
global_step=rcnn.global_step,
name="train_op")
# Keep track of gradient values and sparsity (optional)
grad_summaries = []
for g, v in zip(grads, vars):
if g is not None:
grad_hist_summary = tf.summary.histogram(
"{0}/grad/hist".format(v.name), g)
sparsity_summary = tf.summary.scalar(
"{0}/grad/sparsity".format(v.name),
tf.nn.zero_fraction(g))
grad_summaries.append(grad_hist_summary)
grad_summaries.append(sparsity_summary)
grad_summaries_merged = tf.summary.merge(grad_summaries)
# Output directory for models and summaries
if FLAGS.train_or_restore == 'R':
MODEL = input(
"☛ Please input the checkpoints model you want to restore, "
"it should be like(1490175368): "
) # The model you want to restore
while not (MODEL.isdigit() and len(MODEL) == 10):
MODEL = input(
"✘ The format of your input is illegal, please re-input: "
)
logger.info(
"✔︎ The format of your input is legal, now loading to next step..."
)
out_dir = os.path.abspath(
os.path.join(os.path.curdir, "runs", MODEL))
logger.info("✔︎ Writing to {0}\n".format(out_dir))
else:
timestamp = str(int(time.time()))
out_dir = os.path.abspath(
os.path.join(os.path.curdir, "runs", timestamp))
logger.info("✔︎ Writing to {0}\n".format(out_dir))
checkpoint_dir = os.path.abspath(
os.path.join(out_dir, "checkpoints"))
best_checkpoint_dir = os.path.abspath(
os.path.join(out_dir, "bestcheckpoints"))
# Summaries for loss
loss_summary = tf.summary.scalar("loss", rcnn.loss)
# Train summaries
train_summary_op = tf.summary.merge(
[loss_summary, grad_summaries_merged])
train_summary_dir = os.path.join(out_dir, "summaries", "train")
train_summary_writer = tf.summary.FileWriter(
train_summary_dir, sess.graph)
# Validation summaries
validation_summary_op = tf.summary.merge([loss_summary])
validation_summary_dir = os.path.join(out_dir, "summaries",
"validation")
validation_summary_writer = tf.summary.FileWriter(
validation_summary_dir, sess.graph)
saver = tf.train.Saver(tf.global_variables(),
max_to_keep=FLAGS.num_checkpoints)
best_saver = cm.BestCheckpointSaver(save_dir=best_checkpoint_dir,
num_to_keep=3,
maximize=True)
if FLAGS.train_or_restore == 'R':
# Load rcnn model
logger.info("✔︎ Loading model...")
checkpoint_file = tf.train.latest_checkpoint(checkpoint_dir)
logger.info(checkpoint_file)
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph(
"{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
else:
if not os.path.exists(checkpoint_dir):
os.makedirs(checkpoint_dir)
sess.run(tf.global_variables_initializer())
sess.run(tf.local_variables_initializer())
# Embedding visualization config
config = projector.ProjectorConfig()
embedding_conf = config.embeddings.add()
embedding_conf.tensor_name = "embedding"
embedding_conf.metadata_path = FLAGS.metadata_file
projector.visualize_embeddings(train_summary_writer, config)
projector.visualize_embeddings(validation_summary_writer,
config)
# Save the embedding visualization
saver.save(
sess, os.path.join(out_dir, "embedding", "embedding.ckpt"))
current_step = sess.run(rcnn.global_step)
def train_step(x_batch, y_batch):
"""A single training step"""
feed_dict = {
rcnn.input_x: x_batch,
rcnn.input_y: y_batch,
rcnn.dropout_keep_prob: FLAGS.dropout_keep_prob,
rcnn.is_training: True
}
_, step, summaries, loss = sess.run(
[train_op, rcnn.global_step, train_summary_op, rcnn.loss],
feed_dict)
logger.info("step {0}: loss {1:g}".format(step, loss))
train_summary_writer.add_summary(summaries, step)
def validation_step(x_val, y_val, writer=None):
"""Evaluates model on a validation set"""
batches_validation = dh.batch_iter(list(zip(x_val, y_val)),
FLAGS.batch_size, 1)
# Predict classes by threshold or topk ('ts': threshold; 'tk': topk)
eval_counter, eval_loss = 0, 0.0
eval_pre_tk = [0.0] * FLAGS.top_num
eval_rec_tk = [0.0] * FLAGS.top_num
eval_F_tk = [0.0] * FLAGS.top_num
true_onehot_labels = []
predicted_onehot_scores = []
predicted_onehot_labels_ts = []
predicted_onehot_labels_tk = [[] for _ in range(FLAGS.top_num)]
for batch_validation in batches_validation:
x_batch_val, y_batch_val = zip(*batch_validation)
feed_dict = {
rcnn.input_x: x_batch_val,
rcnn.input_y: y_batch_val,
rcnn.dropout_keep_prob: 1.0,
rcnn.is_training: False
}
step, summaries, scores, cur_loss = sess.run([
rcnn.global_step, validation_summary_op, rcnn.scores,
rcnn.loss
], feed_dict)
# Prepare for calculating metrics
for i in y_batch_val:
true_onehot_labels.append(i)
for j in scores:
predicted_onehot_scores.append(j)
# Predict by threshold
batch_predicted_onehot_labels_ts = \
dh.get_onehot_label_threshold(scores=scores, threshold=FLAGS.threshold)
for k in batch_predicted_onehot_labels_ts:
predicted_onehot_labels_ts.append(k)
# Predict by topK
for top_num in range(FLAGS.top_num):
batch_predicted_onehot_labels_tk = dh.get_onehot_label_topk(
scores=scores, top_num=top_num + 1)
for i in batch_predicted_onehot_labels_tk:
predicted_onehot_labels_tk[top_num].append(i)
eval_loss = eval_loss + cur_loss
eval_counter = eval_counter + 1
if writer:
writer.add_summary(summaries, step)
eval_loss = float(eval_loss / eval_counter)
# Calculate Precision & Recall & F1 (threshold & topK)
eval_pre_ts = precision_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts),
average='micro')
eval_rec_ts = recall_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts),
average='micro')
eval_F_ts = f1_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts),
average='micro')
for top_num in range(FLAGS.top_num):
eval_pre_tk[top_num] = precision_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_tk[top_num]),
average='micro')
eval_rec_tk[top_num] = recall_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_tk[top_num]),
average='micro')
eval_F_tk[top_num] = f1_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_tk[top_num]),
average='micro')
# Calculate the average AUC
eval_auc = roc_auc_score(
y_true=np.array(true_onehot_labels),
y_score=np.array(predicted_onehot_scores),
average='micro')
# Calculate the average PR
eval_prc = average_precision_score(
y_true=np.array(true_onehot_labels),
y_score=np.array(predicted_onehot_scores),
average='micro')
return eval_loss, eval_auc, eval_prc, eval_rec_ts, eval_pre_ts, eval_F_ts, \
eval_rec_tk, eval_pre_tk, eval_F_tk
# Generate batches
batches_train = dh.batch_iter(list(zip(x_train, y_train)),
FLAGS.batch_size, FLAGS.num_epochs)
num_batches_per_epoch = int(
(len(x_train) - 1) / FLAGS.batch_size) + 1
# Training loop. For each batch...
for batch_train in batches_train:
x_batch_train, y_batch_train = zip(*batch_train)
train_step(x_batch_train, y_batch_train)
current_step = tf.train.global_step(sess, rcnn.global_step)
if current_step % FLAGS.evaluate_every == 0:
logger.info("\nEvaluation:")
eval_loss, eval_auc, eval_prc, \
eval_rec_ts, eval_pre_ts, eval_F_ts, eval_rec_tk, eval_pre_tk, eval_F_tk = \
validation_step(x_val, y_val, writer=validation_summary_writer)
logger.info(
"All Validation set: Loss {0:g} | AUC {1:g} | AUPRC {2:g}"
.format(eval_loss, eval_auc, eval_prc))
# Predict by threshold
logger.info(
"☛ Predict by threshold: Precision {0:g}, Recall {1:g}, F {2:g}"
.format(eval_pre_ts, eval_rec_ts, eval_F_ts))
# Predict by topK
logger.info("☛ Predict by topK:")
for top_num in range(FLAGS.top_num):
logger.info(
"Top{0}: Precision {1:g}, Recall {2:g}, F {3:g}".
format(top_num + 1, eval_pre_tk[top_num],
eval_rec_tk[top_num], eval_F_tk[top_num]))
best_saver.handle(eval_prc, sess, current_step)
if current_step % FLAGS.checkpoint_every == 0:
checkpoint_prefix = os.path.join(checkpoint_dir, "model")
path = saver.save(sess,
checkpoint_prefix,
global_step=current_step)
logger.info(
"✔︎ Saved model checkpoint to {0}\n".format(path))
if current_step % num_batches_per_epoch == 0:
current_epoch = current_step // num_batches_per_epoch
logger.info(
"✔︎ Epoch {0} has finished!".format(current_epoch))
logger.info("✔︎ Done.")
def test_harnn():
"""Test HARNN model."""
# Print parameters used for the model
dh.tab_printer(args, logger)
# Load data
logger.info("Loading data...")
logger.info("Data processing...")
test_data = dh.load_data_and_labels(args.test_file,
args.num_classes_list,
args.total_classes,
args.word2vec_file,
data_aug_flag=False)
logger.info("Data padding...")
x_test, y_test, y_test_tuple = dh.pad_data(test_data, args.pad_seq_len)
y_test_labels = test_data.labels
# Load harnn model
OPTION = dh._option(pattern=1)
if OPTION == 'B':
logger.info("Loading best model...")
checkpoint_file = cm.get_best_checkpoint(BEST_CPT_DIR,
select_maximum_value=True)
else:
logger.info("Loading latest model...")
checkpoint_file = tf.train.latest_checkpoint(CPT_DIR)
logger.info(checkpoint_file)
graph = tf.Graph()
with graph.as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=args.allow_soft_placement,
log_device_placement=args.log_device_placement)
session_conf.gpu_options.allow_growth = args.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph(
"{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
# Get the placeholders from the graph by name
input_x = graph.get_operation_by_name("input_x").outputs[0]
input_y_first = graph.get_operation_by_name(
"input_y_first").outputs[0]
input_y_second = graph.get_operation_by_name(
"input_y_second").outputs[0]
input_y_third = graph.get_operation_by_name(
"input_y_third").outputs[0]
input_y_fourth = graph.get_operation_by_name(
"input_y_fourth").outputs[0]
input_y = graph.get_operation_by_name("input_y").outputs[0]
dropout_keep_prob = graph.get_operation_by_name(
"dropout_keep_prob").outputs[0]
alpha = graph.get_operation_by_name("alpha").outputs[0]
is_training = graph.get_operation_by_name("is_training").outputs[0]
# Tensors we want to evaluate
first_scores = graph.get_operation_by_name(
"first-output/scores").outputs[0]
second_scores = graph.get_operation_by_name(
"second-output/scores").outputs[0]
third_scores = graph.get_operation_by_name(
"third-output/scores").outputs[0]
fourth_scores = graph.get_operation_by_name(
"fourth-output/scores").outputs[0]
scores = graph.get_operation_by_name("output/scores").outputs[0]
loss = graph.get_operation_by_name("loss/loss").outputs[0]
# Split the output nodes name by '|' if you have several output nodes
output_node_names = "first-output/scores|second-output/scores|third-output/scores|fourth-output/scores|output/scores"
# Save the .pb model file
output_graph_def = tf.graph_util.convert_variables_to_constants(
sess, sess.graph_def, output_node_names.split("|"))
tf.train.write_graph(output_graph_def,
"graph",
"graph-harnn-{0}.pb".format(MODEL),
as_text=False)
# Generate batches for one epoch
batches = dh.batch_iter(list(
zip(x_test, y_test, y_test_tuple, y_test_labels)),
args.batch_size,
1,
shuffle=False)
test_counter, test_loss = 0, 0.0
# Collect the predictions here
true_labels = []
predicted_labels = []
predicted_scores = []
# Collect for calculating metrics
true_onehot_labels = []
predicted_onehot_scores = []
predicted_onehot_labels_ts = []
predicted_onehot_labels_tk = [[] for _ in range(args.topK)]
true_onehot_first_labels = []
true_onehot_second_labels = []
true_onehot_third_labels = []
true_onehot_fourth_labels = []
predicted_onehot_scores_first = []
predicted_onehot_scores_second = []
predicted_onehot_scores_third = []
predicted_onehot_scores_fourth = []
predicted_onehot_labels_first = []
predicted_onehot_labels_second = []
predicted_onehot_labels_third = []
predicted_onehot_labels_fourth = []
for batch_test in batches:
x_batch_test, y_batch_test, y_batch_test_tuple, y_batch_test_labels = zip(
*batch_test)
y_batch_test_first = [i[0] for i in y_batch_test_tuple]
y_batch_test_second = [j[1] for j in y_batch_test_tuple]
y_batch_test_third = [k[2] for k in y_batch_test_tuple]
y_batch_test_fourth = [t[3] for t in y_batch_test_tuple]
feed_dict = {
input_x: x_batch_test,
input_y_first: y_batch_test_first,
input_y_second: y_batch_test_second,
input_y_third: y_batch_test_third,
input_y_fourth: y_batch_test_fourth,
input_y: y_batch_test,
dropout_keep_prob: 1.0,
alpha: args.alpha,
is_training: False
}
batch_first_scores, batch_second_scores, batch_third_scores, batch_fourth_scores, batch_scores, cur_loss = \
sess.run([first_scores, second_scores, third_scores, fourth_scores, scores, loss], feed_dict)
# Prepare for calculating metrics
for onehot_labels in y_batch_test:
true_onehot_labels.append(onehot_labels)
for onehot_labels in y_batch_test_first:
true_onehot_first_labels.append(onehot_labels)
for onehot_labels in y_batch_test_second:
true_onehot_second_labels.append(onehot_labels)
for onehot_labels in y_batch_test_third:
true_onehot_third_labels.append(onehot_labels)
for onehot_labels in y_batch_test_fourth:
true_onehot_fourth_labels.append(onehot_labels)
for onehot_scores in batch_scores:
predicted_onehot_scores.append(onehot_scores)
for onehot_scores in batch_first_scores:
predicted_onehot_scores_first.append(onehot_scores)
for onehot_scores in batch_second_scores:
predicted_onehot_scores_second.append(onehot_scores)
for onehot_scores in batch_third_scores:
predicted_onehot_scores_third.append(onehot_scores)
for onehot_scores in batch_fourth_scores:
predicted_onehot_scores_fourth.append(onehot_scores)
# Get the predicted labels by threshold
batch_predicted_labels_ts, batch_predicted_scores_ts = \
dh.get_label_threshold(scores=batch_scores, threshold=args.threshold)
# Add results to collection
for labels in y_batch_test_labels:
true_labels.append(labels)
for labels in batch_predicted_labels_ts:
predicted_labels.append(labels)
for values in batch_predicted_scores_ts:
predicted_scores.append(values)
# Get one-hot prediction by threshold
batch_predicted_onehot_labels_ts = \
dh.get_onehot_label_threshold(scores=batch_scores, threshold=args.threshold)
batch_predicted_onehot_labels_first = \
dh.get_onehot_label_threshold(scores=batch_first_scores, threshold=args.threshold)
batch_predicted_onehot_labels_second = \
dh.get_onehot_label_threshold(scores=batch_second_scores, threshold=args.threshold)
batch_predicted_onehot_labels_third = \
dh.get_onehot_label_threshold(scores=batch_third_scores, threshold=args.threshold)
batch_predicted_onehot_labels_fourth = \
dh.get_onehot_label_threshold(scores=batch_fourth_scores, threshold=args.threshold)
for onehot_labels in batch_predicted_onehot_labels_ts:
predicted_onehot_labels_ts.append(onehot_labels)
for onehot_labels in batch_predicted_onehot_labels_first:
predicted_onehot_labels_first.append(onehot_labels)
for onehot_labels in batch_predicted_onehot_labels_second:
predicted_onehot_labels_second.append(onehot_labels)
for onehot_labels in batch_predicted_onehot_labels_third:
predicted_onehot_labels_third.append(onehot_labels)
for onehot_labels in batch_predicted_onehot_labels_fourth:
predicted_onehot_labels_fourth.append(onehot_labels)
# Get one-hot prediction by topK
for i in range(args.topK):
batch_predicted_onehot_labels_tk = dh.get_onehot_label_topk(
scores=batch_scores, top_num=i + 1)
for onehot_labels in batch_predicted_onehot_labels_tk:
predicted_onehot_labels_tk[i].append(onehot_labels)
test_loss = test_loss + cur_loss
test_counter = test_counter + 1
# Calculate Precision & Recall & F1
test_pre_ts = precision_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts),
average='micro')
test_pre_first = precision_score(
y_true=np.array(true_onehot_first_labels),
y_pred=np.array(predicted_onehot_labels_first),
average='micro')
test_pre_second = precision_score(
y_true=np.array(true_onehot_second_labels),
y_pred=np.array(predicted_onehot_labels_second),
average='micro')
test_pre_third = precision_score(
y_true=np.array(true_onehot_third_labels),
y_pred=np.array(predicted_onehot_labels_third),
average='micro')
test_pre_fourth = precision_score(
y_true=np.array(true_onehot_fourth_labels),
y_pred=np.array(predicted_onehot_labels_fourth),
average='micro')
test_rec_ts = recall_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts),
average='micro')
test_rec_first = recall_score(
y_true=np.array(true_onehot_first_labels),
y_pred=np.array(predicted_onehot_labels_first),
average='micro')
test_rec_second = recall_score(
y_true=np.array(true_onehot_second_labels),
y_pred=np.array(predicted_onehot_labels_second),
average='micro')
test_rec_third = recall_score(
y_true=np.array(true_onehot_third_labels),
y_pred=np.array(predicted_onehot_labels_third),
average='micro')
test_rec_fourth = recall_score(
y_true=np.array(true_onehot_fourth_labels),
y_pred=np.array(predicted_onehot_labels_fourth),
average='micro')
test_F1_ts = f1_score(y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts),
average='micro')
test_F1_first = f1_score(
y_true=np.array(true_onehot_first_labels),
y_pred=np.array(predicted_onehot_labels_first),
average='micro')
test_F1_second = f1_score(
y_true=np.array(true_onehot_second_labels),
y_pred=np.array(predicted_onehot_labels_second),
average='micro')
test_F1_third = f1_score(
y_true=np.array(true_onehot_third_labels),
y_pred=np.array(predicted_onehot_labels_third),
average='micro')
test_F1_fourth = f1_score(
y_true=np.array(true_onehot_fourth_labels),
y_pred=np.array(predicted_onehot_labels_fourth),
average='micro')
# Calculate the average AUC
test_auc = roc_auc_score(y_true=np.array(true_onehot_labels),
y_score=np.array(predicted_onehot_scores),
average='micro')
# Calculate the average PR
test_prc = average_precision_score(
y_true=np.array(true_onehot_labels),
y_score=np.array(predicted_onehot_scores),
average="micro")
test_prc_first = average_precision_score(
y_true=np.array(true_onehot_first_labels),
y_score=np.array(predicted_onehot_scores_first),
average="micro")
test_prc_second = average_precision_score(
y_true=np.array(true_onehot_second_labels),
y_score=np.array(predicted_onehot_scores_second),
average="micro")
test_prc_third = average_precision_score(
y_true=np.array(true_onehot_third_labels),
y_score=np.array(predicted_onehot_scores_third),
average="micro")
test_prc_fourth = average_precision_score(
y_true=np.array(true_onehot_fourth_labels),
y_score=np.array(predicted_onehot_scores_fourth),
average="micro")
test_loss = float(test_loss / test_counter)
logger.info(
"All Test Dataset: Loss {0:g} | AUC {1:g} | AUPRC {2:g}".
format(test_loss, test_auc, test_prc))
# Predict by threshold
logger.info(
"Predict by threshold: Precision {0:g}, Recall {1:g}, F1 {2:g}"
.format(test_pre_ts, test_rec_ts, test_F1_ts))
logger.info(
"Predict by threshold in Level-1: Precision {0:g}, Recall {1:g}, F1 {2:g}, AUPRC {3:g}"
.format(test_pre_first, test_rec_first, test_F1_first,
test_prc_first))
logger.info(
"Predict by threshold in Level-2: Precision {0:g}, Recall {1:g}, F1 {2:g}, AUPRC {3:g}"
.format(test_pre_second, test_rec_second, test_F1_second,
test_prc_second))
logger.info(
"Predict by threshold in Level-3: Precision {0:g}, Recall {1:g}, F1 {2:g}, AUPRC {3:g}"
.format(test_pre_third, test_rec_third, test_F1_third,
test_prc_third))
logger.info(
"Predict by threshold in Level-4: Precision {0:g}, Recall {1:g}, F1 {2:g}, AUPRC {3:g}"
.format(test_pre_fourth, test_rec_fourth, test_F1_fourth,
test_prc_fourth))
# Save the prediction result
if not os.path.exists(SAVE_DIR):
os.makedirs(SAVE_DIR)
dh.create_prediction_file(output_file=SAVE_DIR +
"/predictions.json",
data_id=test_data.patent_id,
all_labels=true_labels,
all_predict_labels=predicted_labels,
all_predict_scores=predicted_scores)
logger.info("All Done.")
cnn.input_x: x_batch,
cnn.input_y: y_batch,
cnn.dropout_keep_prob: 1.0
}
step, summaries, loss, accuracy, precision, recall = sess.run([
global_step, dev_summary_op, cnn.loss, cnn.accuracy,
cnn.precision, cnn.recall
], feed_dict)
time_str = datetime.datetime.now().isoformat()
print("{}: step {}, loss {:g}, acc {:g}, prec {:g}, recl {:g}".
format(time_str, step, loss, accuracy, precision, recall))
if writer:
writer.add_summary(summaries, step)
# Generate batches
batches = data_helpers.batch_iter(list(zip(x_train, y_train)),
FLAGS.batch_size, FLAGS.num_epochs)
# Training loop. For each batch...
for batch in batches:
x_batch, y_batch = zip(*batch)
train_step(x_batch, y_batch)
current_step = tf.train.global_step(sess, global_step)
if current_step % FLAGS.evaluate_every == 0:
print("\nEvaluation:")
dev_step(x_dev, y_dev) #, writer=dev_summary_writer)
print("")
if current_step % FLAGS.checkpoint_every == 0:
path = saver.save(sess,
checkpoint_prefix,
global_step=current_step)
print("Saved model checkpoint to {}\n".format(path))
def test_hmidp():
"""Test HMIDP model."""
# Load data
logger.info("✔︎ Loading data...")
logger.info("Recommended padding Sequence length is: {0}".format(
FLAGS.pad_seq_len))
logger.info("✔︎ Test data processing...")
test_data = dh.load_data_and_labels(FLAGS.test_data_file,
FLAGS.embedding_dim,
data_aug_flag=False)
logger.info("✔︎ Test data padding...")
x_test_content, x_test_question, x_test_option, y_test = dh.pad_data(
test_data, FLAGS.pad_seq_len)
# Load hmidp model
BEST_OR_LATEST = input("☛ Load Best or Latest Model?(B/L): ")
while not (BEST_OR_LATEST.isalpha()
and BEST_OR_LATEST.upper() in ['B', 'L']):
BEST_OR_LATEST = input(
"✘ The format of your input is illegal, please re-input: ")
if BEST_OR_LATEST.upper() == 'B':
logger.info("✔︎ Loading best model...")
checkpoint_file = cm.get_best_checkpoint(FLAGS.best_checkpoint_dir,
select_maximum_value=True)
else:
logger.info("✔︎ Loading latest model...")
checkpoint_file = tf.train.latest_checkpoint(FLAGS.checkpoint_dir)
logger.info(checkpoint_file)
graph = tf.Graph()
with graph.as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=FLAGS.allow_soft_placement,
log_device_placement=FLAGS.log_device_placement)
session_conf.gpu_options.allow_growth = FLAGS.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph(
"{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
# Get the placeholders from the graph by name
input_x_content = graph.get_operation_by_name(
"input_x_content").outputs[0]
input_x_question = graph.get_operation_by_name(
"input_x_question").outputs[0]
input_x_option = graph.get_operation_by_name(
"input_x_option").outputs[0]
input_y = graph.get_operation_by_name("input_y").outputs[0]
dropout_keep_prob = graph.get_operation_by_name(
"dropout_keep_prob").outputs[0]
is_training = graph.get_operation_by_name("is_training").outputs[0]
# Tensors we want to evaluate
scores = graph.get_operation_by_name("output/scores").outputs[0]
loss = graph.get_operation_by_name("loss/loss").outputs[0]
# Split the output nodes name by '|' if you have several output nodes
output_node_names = "output/scores"
# Save the .pb model file
output_graph_def = tf.graph_util.convert_variables_to_constants(
sess, sess.graph_def, output_node_names.split("|"))
tf.train.write_graph(output_graph_def,
"graph",
"graph-hmidp-{0}.pb".format(MODEL),
as_text=False)
# Generate batches for one epoch
batches = dh.batch_iter(list(
zip(x_test_content, x_test_question, x_test_option, y_test)),
FLAGS.batch_size,
1,
shuffle=False)
test_counter, test_loss = 0, 0.0
# Collect the predictions here
true_labels = []
predicted_scores = []
for batch_test in batches:
x_batch_content, x_batch_question, x_batch_option, y_batch = zip(
*batch_test)
feed_dict = {
input_x_content: x_batch_content,
input_x_question: x_batch_question,
input_x_option: x_batch_option,
input_y: y_batch,
dropout_keep_prob: 1.0,
is_training: False
}
batch_scores, cur_loss = sess.run([scores, loss], feed_dict)
# Prepare for calculating metrics
for i in y_batch:
true_labels.append(i)
for j in batch_scores:
predicted_scores.append(j)
test_loss = test_loss + cur_loss
test_counter = test_counter + 1
# Calculate PCC & DOA
pcc, doa = dh.evaluation(true_labels, predicted_scores)
# Calculate RMSE
rmse = mean_squared_error(true_labels, predicted_scores)**0.5
test_loss = float(test_loss / test_counter)
logger.info(
"☛ All Test Dataset: Loss {0:g} | PCC {1:g} | DOA {2:g} | RMSE {1:g}"
.format(test_loss, pcc, doa, rmse))
# Save the prediction result
if not os.path.exists(SAVE_DIR):
os.makedirs(SAVE_DIR)
dh.create_prediction_file(output_file=SAVE_DIR +
"/predictions.json",
all_id=test_data.id,
all_labels=true_labels,
all_predict_scores=predicted_scores)
logger.info("✔︎ Done.")
def train():
print(" >> Loading preprocessing information...", "\n")
parameters, data_info = load_preprocessing()
print(" >> Loading Train Data...", "\n")
train_data = data_info.train_data
train_loss_history = []
train_acc_history = []
session_conf = tf.ConfigProto()
session_conf.gpu_options.allow_growth = True
with tf.Session(config=session_conf) as sess:
Model = create_model(sess, parameters, data_info)
if Model.global_epoch_step.eval() + 1 > parameters['n_epoch']:
print(" >> Current Epoch: {}, Max Epoch: {}".format(
Model.global_epoch_step.eval(), parameters['n_epoch']))
print(" >> End of Training....")
exit(-1)
for epoch_idx in range(parameters['n_epoch']):
try:
batches = data_helpers.batch_iter(parameters, train_data)
for minibatch in batches:
#print (minibatch)
input_indices, target_indices = data_helpers.get_minibatch(\
dataset = train_data,\
minibatch_seq = minibatch)
feed_dict = {
Model.X : input_indices,\
Model.Y : target_indices}
# Training model......
_, global_step, minibatch_loss, minibatch_accuracy = sess.run(\
[Model.train_op, Model.global_step, Model.loss, Model.accuracy], feed_dict)
# Check Training Process
if (global_step + 1) % parameters['evaluation_every'] == 0:
# 매 "evaluation_every" step마다 train의 결과를 저장!!!
train_loss_history.append(minibatch_loss)
train_acc_history.append(minibatch_accuracy)
print(" >> Global_Step # {} at {}-epoch".format(
global_step, Model.global_epoch_step.eval()))
print(" - Train Loss : {:,.2f}".format(
minibatch_loss))
print(" - Train Accuracy: {:,.2f}".format(
minibatch_accuracy))
print("")
Model.global_epoch_step_op.eval() #Increment Global_epoch_step
except KeyboardInterrupt:
print(" - Training Process Terminated....")
exit(-1)
print(" >> Save the last model...")
saver = tf.train.Saver()
checkpoint_path = os.path.join(parameters['save_dir'], 'MLP.ckpt')
saver.save(sess, checkpoint_path, global_step=global_step)
print(" >> End of Training...")
print("")
print("")
with graph.as_default():
session_conf = tf.ConfigProto(allow_soft_placement=True,
log_device_placement=False)
sess = tf.Session(config=session_conf)
with sess.as_default():
checkpoint_file = '/home/ameex/ML/projects/text-classification/runs/1532540562/checkpoints/model-700'
saver = tf.train.import_meta_graph("{}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
input_x = graph.get_operation_by_name("input_x").outputs[0]
dropout_keep_prob = graph.get_operation_by_name(
"dropout_keep_prob").outputs[0]
scores = graph.get_operation_by_name("output/scores").outputs[0]
predictions = graph.get_operation_by_name(
"output/predictions").outputs[0]
batches = data_helpers.batch_iter(list(x_test), 37, 1, shuffle=False)
all_predictions = []
all_probabilities = None
batch_predictions_scores = sess.run([predictions, scores], {
input_x: x_test,
dropout_keep_prob: 1.0
})
all_predictions = np.concatenate(
[all_predictions, batch_predictions_scores[0]])
probabilities = softmax(batch_predictions_scores[1])
print(all_predictions)
print(all_predictions.shape)
print(max(all_predictions))
for index, x_test_batch in enumerate(batches):
print(x_test_batch)
def main(_):
"""
主体函数代码构建
:param _:
:return:
"""
# -1. 模型持久化文件夹检查
check_directory(FLAGS.checkpoint_dir)
checkpoint_save_path = os.path.join(FLAGS.checkpoint_dir, "model.ckpt")
# 0. 数据校验，要求训练数据文件文件存在
if not (os.path.isfile(FLAGS.positive_data_file)
and os.path.isfile(FLAGS.negative_data_file)):
raise Exception("给定的训练数据必须是文件路径的形成!!!")
# 1. 加载词汇转换模型
vocab_model_path = FLAGS.vocab_model_path
if not tf.gfile.Exists(vocab_model_path):
raise Exception("词汇转换模型必须存在,请检查磁盘路径:{}".format(vocab_model_path))
vocab_model = VocabularyProcessorUtil.load_model(
save_path=vocab_model_path)
# 2. TensorFlow相关代码构建
with tf.Graph().as_default():
# 一、执行图的构建
# 1. 网络构建(前向执行构成的构建)
tf.logging.info("开始构建前向过程的网络结构....")
# 获取使用什么模型以及模型的名称
model_name = FLAGS.model.lower()
model_class = load_model_class(model_name)
network_name = model_name.upper(
) if FLAGS.network_name is None else FLAGS.network_name
# 构建Embedding Lookup相关参数
with_word2vec = False
embedding_table = None
if FLAGS.with_word2vec:
if os.path.exists(FLAGS.word2vec_model_path):
tf.logging.info("加载Word2Vec训练好的词向量转换模型!!!")
embedding_table, _ = VocabularyProcessorUtil.load_word2vec_embedding(
save_path=FLAGS.word2vec_model_path)
with_word2vec = True
else:
tf.logging.warn("不能加载Word2Vec词向量转换矩阵，原因是文件不存在，请检查:{}".format(
FLAGS.word2vec_model_path))
# 构建TextCNN的卷积相关参数(卷积核数量、卷积的范围)
num_filters = list(map(int, FLAGS.num_filters.split(",")))
num_filters = num_filters if len(num_filters) > 1 else num_filters[0]
region_sizes = list(map(int, FLAGS.region_sizes.split(",")))
# 构建模型
model = model_class(
with_word2vec=with_word2vec, # 是否做Word2Vec
vocab_size=len(vocab_model.vocabulary_), # 词汇数目
embedding_dimensions=FLAGS.
embedding_dimensions, # Embedding Loopup转换的向量维度大小
embedding_table=embedding_table, # 做Word2Vec的初始化向量矩阵
train_embedding_table=FLAGS.
train_embedding_table, # 是否进行Embedding Table的训练
num_class=FLAGS.num_class, # 类别数目
network_name=network_name, # 网络名称
weight_decay=FLAGS.l2_weight_decay, # 正则惩罚项系数
optimizer_type=FLAGS.optimizer_type, # 优化器类别
optimizer_parameters_func=network_utils.
build_optimizer_parameters_func(flags=FLAGS),
saver_parameters={'max_to_keep': FLAGS.max_to_keep},
num_units=FLAGS.num_units, # RNN的神经元数目
layers=FLAGS.layers, # RNN的层次数目
num_filters=num_filters, # TextCNN卷积核的数目
region_sizes=region_sizes, # TextCNN中卷积提取特征的时候单词的范围大小
attention_dimension_size=FLAGS.
attention_dimension_size, # Self-Attention的输出维度大小
attention_layers=FLAGS.
attention_layers, # Transformer中Encoder Attention的层次数目
attention_headers=FLAGS.attention_headers, # Attention中header的数目
)
# 2. 计算损失函数
tf.logging.info("开始构建损失函数对象....")
total_loss = model.losses()
# 3. 构建优化器以及训练操作对象
tf.logging.info("开始构建模型训练操作对象.....")
_, train_op = model.optimizer(loss=total_loss)
# 4. 模型评估指标的构建
tf.logging.info("开始构建模型评估指标.....")
metrics = model.metrics()
# 5. 模型可视化相关操作
tf.logging.info("开始构建模型可视化相关信息.....")
summary_op = tf.summary.merge_all()
train_summary_dir = os.path.join(FLAGS.summary_dir, "train")
eval_summary_dir = os.path.join(FLAGS.summary_dir, "eval")
check_directory(train_summary_dir)
check_directory(eval_summary_dir)
train_summary_writer = tf.summary.FileWriter(
logdir=train_summary_dir, graph=tf.get_default_graph())
eval_summary_writer = tf.summary.FileWriter(
logdir=eval_summary_dir, graph=tf.get_default_graph())
# 二、执行图的运行
session_config = tf.ConfigProto(
allow_soft_placement=FLAGS.allow_soft_placement,
log_device_placement=FLAGS.log_device_placement)
with tf.Session(config=session_config) as sess:
# 1. 模型参数恢复(先初始化所有模型参数，然后再进行模型参数恢复)
tf.logging.info("进行模型参数初始化相关操作......")
sess.run(tf.global_variables_initializer()) # 参数随机初始化
model.restore(checkpoint_dir=FLAGS.checkpoint_dir,
session=sess) # 参数恢复
# 2. 加载数据
tf.logging.info("开始加载文本数据，并转换处理......")
texts, labels = data_helpers.load_data_and_labels(
positive_data_file=FLAGS.positive_data_file,
negative_data_file=FLAGS.negative_data_file)
# 2a. 文本数据id转换（截取、填充,只保留512位）
texts = np.asarray(list(vocab_model.transform(texts)))
# 2b. 将数据进行分割，构建训练数据和验证数据
x_train, x_eval, y_train, y_eval = train_test_split(
texts,
labels,
test_size=FLAGS.dev_sample_percentage,
random_state=28)
tf.logging.info("训练数据格式:{}---{}".format(np.shape(x_train),
np.shape(y_train)))
tf.logging.info("验证数据格式:{}---{}".format(np.shape(x_eval),
np.shape(y_eval)))
# 2c. 将数据做一个封装转换为批次迭代器
batches = data_helpers.batch_iter(
data=list(zip(x_train, y_train)),
batch_size=FLAGS.batch_size, # 每个批次的样本数据量
num_epochs=FLAGS.max_epochs # 总共迭代多少个epoch数据
)
def train_step(_x, _y, writer):
feed_dict = {
model.inputs: _x,
model.targets: _y,
model.dropout_keep_prob: FLAGS.dropout_keep_prob
}
step, _, _accuracy, _loss, _summary = sess.run(
[
model.global_step, train_op, metrics.accuracy,
total_loss, summary_op
],
feed_dict=feed_dict)
time_str = datetime.now().isoformat()
print("{}: step {}, loss {:g}, acc {:g}".format(
time_str, step, _loss, _accuracy))
writer.add_summary(_summary, step)
return step
def dev_step(_x, _y, writer=None):
feed_dict = {model.inputs: _x, model.targets: _y}
step, _accuracy, _loss, _summary = sess.run(
[
model.global_step, metrics.accuracy, total_loss,
summary_op
],
feed_dict=feed_dict)
time_str = datetime.now().isoformat()
print("{}: step {}, loss {:g}, acc {:g}".format(
time_str, step, _loss, _accuracy))
if writer is not None:
writer.add_summary(_summary,
global_step=dev_summary_global_step)
# 3. 遍历数据进行模型训练、模型持久化
for batch in batches:
# a. 从batch中提取x和y
x_batch, y_batch = zip(*batch)
# b. 模型训练
current_step = train_step(x_batch,
y_batch,
writer=train_summary_writer)
# c. 每隔一定的训练间隔，进行验证数据的效果评估
if current_step % FLAGS.evaluate_per_batch == 0:
print("\nEvaluation:")
dev_summary_global_step = current_step
dev_batches = data_helpers.batch_iter(
data=list(zip(x_eval, y_eval)),
batch_size=FLAGS.batch_size * 10, # 每个批次的样本数据量
num_epochs=1 # 总共迭代多少个epoch数据
)
for dev_batch in dev_batches:
dev_x_batch, dev_y_batch = zip(*dev_batch)
dev_step(dev_x_batch,
dev_y_batch,
writer=eval_summary_writer)
dev_summary_global_step += 1
# d. 每个一定的训练间隔，进行模型持久化
if current_step % FLAGS.checkpoint_per_batch == 0:
model.save(session=sess, save_path=checkpoint_save_path)
# 最终结束的时候再保存一次模型
model.save(session=sess, save_path=checkpoint_save_path)
def test_fasttext():
"""Test FASTTEXT model."""
# Load data
logger.info("✔ Loading data...")
logger.info('Recommended padding Sequence length is: {0}'.format(
FLAGS.pad_seq_len))
logger.info('✔︎ Test data processing...')
test_data = dh.load_data_and_labels(FLAGS.test_data_file,
FLAGS.num_classes, FLAGS.embedding_dim)
logger.info('✔︎ Test data padding...')
x_test, y_test = dh.pad_data(test_data, FLAGS.pad_seq_len)
y_test_bind = test_data.labels_bind
# Build vocabulary
VOCAB_SIZE = dh.load_vocab_size(FLAGS.embedding_dim)
pretrained_word2vec_matrix = dh.load_word2vec_matrix(
VOCAB_SIZE, FLAGS.embedding_dim)
# Load fasttext model
logger.info("✔ Loading model...")
checkpoint_file = tf.train.latest_checkpoint(FLAGS.checkpoint_dir)
logger.info(checkpoint_file)
graph = tf.Graph()
with graph.as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=FLAGS.allow_soft_placement,
log_device_placement=FLAGS.log_device_placement)
session_conf.gpu_options.allow_growth = FLAGS.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph(
"{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
# Get the placeholders from the graph by name
input_x = graph.get_operation_by_name("input_x").outputs[0]
# input_y = graph.get_operation_by_name("input_y").outputs[0]
dropout_keep_prob = graph.get_operation_by_name(
"dropout_keep_prob").outputs[0]
# pre-trained_word2vec
pretrained_embedding = graph.get_operation_by_name(
"embedding/embedding").outputs[0]
# Tensors we want to evaluate
logits = graph.get_operation_by_name("output/logits").outputs[0]
# Generate batches for one epoch
batches = dh.batch_iter(list(zip(x_test, y_test, y_test_bind)),
FLAGS.batch_size,
1,
shuffle=False)
# Collect the predictions here
all_predicitons = []
eval_loss, eval_rec, eval_acc, eval_counter = 0.0, 0.0, 0.0, 0
for batch_test in batches:
x_batch_test, y_batch_test, y_batch_test_bind = zip(
*batch_test)
feed_dict = {input_x: x_batch_test, dropout_keep_prob: 1.0}
batch_logits = sess.run(logits, feed_dict)
if FLAGS.use_classbind_or_not == 'Y':
predicted_labels = dh.get_label_using_logits_and_classbind(
batch_logits,
y_batch_test_bind,
top_number=FLAGS.top_num)
if FLAGS.use_classbind_or_not == 'N':
predicted_labels = dh.get_label_using_logits(
batch_logits, top_number=FLAGS.top_num)
all_predicitons = np.append(all_predicitons, predicted_labels)
cur_rec, cur_acc = 0.0, 0.0
for index, predicted_label in enumerate(predicted_labels):
rec_inc, acc_inc = dh.cal_rec_and_acc(
predicted_label, y_batch_test[index])
cur_rec, cur_acc = cur_rec + rec_inc, cur_acc + acc_inc
cur_rec = cur_rec / len(y_batch_test)
cur_acc = cur_acc / len(y_batch_test)
eval_rec, eval_acc, eval_counter = eval_rec + cur_rec, eval_acc + cur_acc, eval_counter + 1
logger.info(
"✔︎ validation batch {0} finished.".format(eval_counter))
eval_rec = float(eval_rec / eval_counter)
eval_acc = float(eval_acc / eval_counter)
logger.info("☛ Recall {0:g}, Accuracy {1:g}".format(
eval_rec, eval_acc))
np.savetxt(SAVE_FILE, list(zip(all_predicitons)), fmt='%s')
logger.info("✔ Done.")
def test_cnn():
"""Test CNN model."""
# Load data
logger.info("✔ Loading data...")
logger.info('Recommended padding Sequence length is: {0}'.format(
FLAGS.pad_seq_len))
logger.info('✔︎ Test data processing...')
test_data = dh.load_data_and_labels(FLAGS.test_data_file,
FLAGS.embedding_dim)
logger.info('✔︎ Test data padding...')
x_test_front, x_test_behind, y_test = dh.pad_data(test_data,
FLAGS.pad_seq_len)
# Build vocabulary
VOCAB_SIZE = dh.load_vocab_size(FLAGS.embedding_dim)
pretrained_word2vec_matrix = dh.load_word2vec_matrix(
VOCAB_SIZE, FLAGS.embedding_dim)
# Load cnn model
logger.info("✔ Loading model...")
checkpoint_file = tf.train.latest_checkpoint(FLAGS.checkpoint_dir)
logger.info(checkpoint_file)
graph = tf.Graph()
with graph.as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=FLAGS.allow_soft_placement,
log_device_placement=FLAGS.log_device_placement)
session_conf.gpu_options.allow_growth = FLAGS.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph(
"{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
# Get the placeholders from the graph by name
input_x_front = graph.get_operation_by_name(
"input_x_front").outputs[0]
input_x_behind = graph.get_operation_by_name(
"input_x_behind").outputs[0]
input_y = graph.get_operation_by_name("input_y").outputs[0]
dropout_keep_prob = graph.get_operation_by_name(
"dropout_keep_prob").outputs[0]
is_training = graph.get_operation_by_name("is_training").outputs[0]
# pre-trained word2vec
pretrained_embedding = graph.get_operation_by_name(
"embedding/embedding").outputs[0]
# Tensors we want to evaluate
scores = graph.get_operation_by_name("output/scores").outputs
predictions = graph.get_operation_by_name(
"output/predictions").outputs[0]
softmax_scores = graph.get_operation_by_name(
"output/SoftMax_scores").outputs[0]
topKPreds = graph.get_operation_by_name(
"output/topKPreds").outputs[0]
accuracy = graph.get_operation_by_name(
"accuracy/accuracy").outputs[0]
loss = graph.get_operation_by_name("loss/loss").outputs[0]
# Split the output nodes name by '|' if you have several output nodes
output_node_names = 'output/scores|output/predictions|output/SoftMax_scores|output/topKPreds'
# Save the .pb model file
output_graph_def = tf.graph_util.convert_variables_to_constants(
sess, sess.graph_def, output_node_names.split("|"))
tf.train.write_graph(output_graph_def,
'graph',
'graph-cnn-{0}.pb'.format(MODEL_LOG),
as_text=False)
# Generate batches for one epoch
batches = dh.batch_iter(list(
zip(x_test_front, x_test_behind, y_test)),
FLAGS.batch_size,
1,
shuffle=False)
# Collect the predictions here
all_scores = []
all_softmax_scores = []
all_predictions = []
all_topKPreds = []
for index, x_test_batch in enumerate(batches):
x_batch_front, x_batch_behind, y_batch = zip(*x_test_batch)
feed_dict = {
input_x_front: x_batch_front,
input_x_behind: x_batch_behind,
input_y: y_batch,
dropout_keep_prob: 1.0,
is_training: False
}
batch_scores = sess.run(scores, feed_dict)
all_scores = np.append(all_scores, batch_scores)
batch_softmax_scores = sess.run(softmax_scores, feed_dict)
all_softmax_scores = np.append(all_softmax_scores,
batch_softmax_scores)
batch_predictions = sess.run(predictions, feed_dict)
all_predictions = np.concatenate(
[all_predictions, batch_predictions])
batch_topKPreds = sess.run(topKPreds, feed_dict)
all_topKPreds = np.append(all_topKPreds, batch_topKPreds)
batch_loss = sess.run(loss, feed_dict)
batch_acc = sess.run(accuracy, feed_dict)
logger.info(
"✔︎ Test batch {0}: loss {1:g}, accuracy {2:g}.".format(
(index + 1), batch_loss, batch_acc))
os.makedirs(SAVE_DIR)
np.savetxt(SAVE_DIR + '/result_sub_' + SUBSET + '.txt',
list(zip(all_predictions, all_topKPreds)),
fmt='%s')
logger.info("✔ Done.")
def visualize():
"""visualize HARNN model."""
# Load data
logger.info("✔︎ Loading data...")
logger.info("Recommended padding Sequence length is: {0}".format(FLAGS.pad_seq_len))
logger.info("✔︎ Test data processing...")
test_data = dh.load_data_and_labels(FLAGS.test_data_file, FLAGS.num_classes_list, FLAGS.total_classes,
FLAGS.embedding_dim, data_aug_flag=False)
logger.info("✔︎ Test data padding...")
x_test, y_test, y_test_tuple = dh.pad_data(test_data, FLAGS.pad_seq_len)
x_test_content, y_test_labels = test_data.abstract_content, test_data.labels
# Load harnn model
BEST_OR_LATEST = input("☛ Load Best or Latest Model?(B/L): ")
while not (BEST_OR_LATEST.isalpha() and BEST_OR_LATEST.upper() in ['B', 'L']):
BEST_OR_LATEST = input("✘ The format of your input is illegal, please re-input: ")
if BEST_OR_LATEST.upper() == 'B':
logger.info("✔︎ Loading best model...")
checkpoint_file = cm.get_best_checkpoint(FLAGS.best_checkpoint_dir, select_maximum_value=True)
else:
logger.info("✔︎ Loading latest model...")
checkpoint_file = tf.train.latest_checkpoint(FLAGS.checkpoint_dir)
logger.info(checkpoint_file)
graph = tf.Graph()
with graph.as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=FLAGS.allow_soft_placement,
log_device_placement=FLAGS.log_device_placement)
session_conf.gpu_options.allow_growth = FLAGS.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph("{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
# Get the placeholders from the graph by name
input_x = graph.get_operation_by_name("input_x").outputs[0]
input_y_first = graph.get_operation_by_name("input_y_first").outputs[0]
input_y_second = graph.get_operation_by_name("input_y_second").outputs[0]
input_y_third = graph.get_operation_by_name("input_y_third").outputs[0]
input_y = graph.get_operation_by_name("input_y").outputs[0]
dropout_keep_prob = graph.get_operation_by_name("dropout_keep_prob").outputs[0]
beta = graph.get_operation_by_name("beta").outputs[0]
is_training = graph.get_operation_by_name("is_training").outputs[0]
# Tensors we want to evaluate
first_visual = graph.get_operation_by_name("first-output/visual").outputs[0]
second_visual = graph.get_operation_by_name("second-output/visual").outputs[0]
third_visual = graph.get_operation_by_name("third-output/visual").outputs[0]
scores = graph.get_operation_by_name("output/scores").outputs[0]
# Split the output nodes name by '|' if you have several output nodes
output_node_names = "first-output/visual|second-output/visual|third-output/visual|output/scores"
# Save the .pb model file
output_graph_def = tf.graph_util.convert_variables_to_constants(sess, sess.graph_def,
output_node_names.split("|"))
tf.train.write_graph(output_graph_def, "graph", "graph-harnn-{0}.pb".format(MODEL), as_text=False)
# Generate batches for one epoch
batches = dh.batch_iter(list(zip(x_test, y_test, y_test_tuple, x_test_content, y_test_labels)),
FLAGS.batch_size, 1, shuffle=False)
for batch_test in batches:
x_batch_test, y_batch_test, y_batch_test_tuple, \
x_batch_test_content, y_batch_test_labels = zip(*batch_test)
y_batch_test_first = [i[0] for i in y_batch_test_tuple]
y_batch_test_second = [j[1] for j in y_batch_test_tuple]
y_batch_test_third = [k[2] for k in y_batch_test_tuple]
feed_dict = {
input_x: x_batch_test,
input_y_first: y_batch_test_first,
input_y_second: y_batch_test_second,
input_y_third: y_batch_test_third,
input_y: y_batch_test,
dropout_keep_prob: 1.0,
beta: FLAGS.beta,
is_training: False
}
batch_first_visual, batch_second_visual, batch_third_visual, batch_scores = \
sess.run([first_visual, second_visual, third_visual, scores], feed_dict)
seq_len = len(x_batch_test_content[0])
pad_len = len(batch_first_visual[0])
if seq_len >= pad_len:
length = pad_len
else:
length = seq_len
# print(seq_len, pad_len, length)
final_first_visual = normalization(batch_first_visual[0].tolist(), length)
final_second_visual = normalization(batch_second_visual[0].tolist(), length)
final_third_visual = normalization(batch_third_visual[0].tolist(), length)
visual_list = [final_first_visual, final_second_visual, final_third_visual]
print(visual_list)
f = open('attention.html', 'w')
f.write('<html style="margin:0;padding:0;"><body style="margin:0;padding:0;">\n')
f.write('<div style="margin:25px;">\n')
for k in range(len(visual_list)):
f.write('<p style="margin:10px;">\n')
for i in range(seq_len):
alpha = "{:.2f}".format(visual_list[k][i])
word = x_batch_test_content[0][i]
f.write('\t<span style="margin-left:3px;background-color:rgba(255,0,0,{0})">{1}</span>\n'
.format(alpha, word))
f.write('</p>\n')
f.write('</div>\n')
f.write('</body></html>')
f.close()
logger.info("✔︎ Done.")
def validate_cnn():
"""Test CNN model."""
# Load data
logger.info("t Loading data...")
logger.info("Recommended padding Sequence length is: {0}".format(FLAGS.pad_seq_len))
logger.info("t Test data processing...")
test_data = dh.load_data_and_labels(FLAGS.test_data_file, FLAGS.num_classes,
FLAGS.embedding_dim, data_aug_flag=False)
logger.info("t Test data padding...")
x_test, y_test = dh.pad_data(test_data, FLAGS.pad_seq_len)
y_test_labels = test_data.labels
# Load cnn model
BEST_OR_LATEST = input("☛ Load Best or Latest Model?(B/L): ")
while not (BEST_OR_LATEST.isalpha() and BEST_OR_LATEST.upper() in ['B', 'L']):
BEST_OR_LATEST = input("✘ The format of your input is illegal, please re-input: ")
if BEST_OR_LATEST.upper() == 'B':
logger.info("t Loading best model...")
checkpoint_file = cm.get_best_checkpoint(FLAGS.best_checkpoint_dir, select_maximum_value=True)
else:
logger.info("t Loading latest model...")
checkpoint_file = tf.train.latest_checkpoint(FLAGS.checkpoint_dir)
logger.info(checkpoint_file)
graph = tf.Graph()
with graph.as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=FLAGS.allow_soft_placement,
log_device_placement=FLAGS.log_device_placement)
session_conf.gpu_options.allow_growth = FLAGS.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph("{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
# Get the placeholders from the graph by name
input_x = graph.get_operation_by_name("input_x").outputs[0]
input_y = graph.get_operation_by_name("input_y").outputs[0]
dropout_keep_prob = graph.get_operation_by_name("dropout_keep_prob").outputs[0]
is_training = graph.get_operation_by_name("is_training").outputs[0]
# Tensors we want to evaluate
scores = graph.get_operation_by_name("output/scores").outputs[0]
loss = graph.get_operation_by_name("loss/loss").outputs[0]
# Split the output nodes name by '|' if you have several output nodes
output_node_names = "output/scores"
# Save the .pb model file
output_graph_def = tf.graph_util.convert_variables_to_constants(sess, sess.graph_def,
output_node_names.split("|"))
tf.train.write_graph(output_graph_def, "graph", "graph-cnn-{0}.pb".format(MODEL), as_text=False)
# Generate batches for one epoch
batches = dh.batch_iter(list(zip(x_test, y_test, y_test_labels)), FLAGS.batch_size, 1, shuffle=False)
test_counter, test_loss = 0, 0.0
test_pre_tk = [0.0] * FLAGS.top_num
test_rec_tk = [0.0] * FLAGS.top_num
test_F_tk = [0.0] * FLAGS.top_num
# Collect the predictions here
true_labels = []
predicted_labels = []
predicted_scores = []
# Collect for calculating metrics
true_onehot_labels = []
predicted_onehot_scores = []
predicted_onehot_labels_ts = []
predicted_onehot_labels_tk = [[] for _ in range(FLAGS.top_num)]
for batch_test in batches:
x_batch_test, y_batch_test, y_batch_test_labels = zip(*batch_test)
feed_dict = {
input_x: x_batch_test,
input_y: y_batch_test,
dropout_keep_prob: 1.0,
is_training: False
}
batch_scores, cur_loss = sess.run([scores, loss], feed_dict)
# Prepare for calculating metrics
for i in y_batch_test:
true_onehot_labels.append(i)
for j in batch_scores:
predicted_onehot_scores.append(j)
# Get the predicted labels by threshold
batch_predicted_labels_ts, batch_predicted_scores_ts = \
dh.get_label_threshold(scores=batch_scores, threshold=FLAGS.threshold)
# Add results to collection
for i in y_batch_test_labels:
true_labels.append(i)
for j in batch_predicted_labels_ts:
predicted_labels.append(j)
for k in batch_predicted_scores_ts:
predicted_scores.append(k)
# Get onehot predictions by threshold
batch_predicted_onehot_labels_ts = \
dh.get_onehot_label_threshold(scores=batch_scores, threshold=FLAGS.threshold)
for i in batch_predicted_onehot_labels_ts:
predicted_onehot_labels_ts.append(i)
# Get onehot predictions by topK
for top_num in range(FLAGS.top_num):
batch_predicted_onehot_labels_tk = dh.get_onehot_label_topk(scores=batch_scores, top_num=top_num+1)
for i in batch_predicted_onehot_labels_tk:
predicted_onehot_labels_tk[top_num].append(i)
test_loss = test_loss + cur_loss
test_counter = test_counter + 1
# Calculate Precision & Recall & F1 (threshold & topK)
test_pre_ts = precision_score(y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts), average='micro')
test_rec_ts = recall_score(y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts), average='micro')
test_F_ts = f1_score(y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts), average='micro')
test_hmloss = hamming_loss(y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts))
test_rocauc = roc_auc_score(y_true=np.array(true_onehot_labels),
y_score=np.array(predicted_onehot_scores))
test_subsetacc = accuracy_score(y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts))
test_labelrankap = label_ranking_average_precision_score(y_true=np.array(true_onehot_labels),
y_score=np.array(predicted_onehot_scores))
for top_num in range(FLAGS.top_num):
test_pre_tk[top_num] = precision_score(y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_tk[top_num]),
average='micro')
test_rec_tk[top_num] = recall_score(y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_tk[top_num]),
average='micro')
test_F_tk[top_num] = f1_score(y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_tk[top_num]),
average='micro')
# Calculate the average AUC
test_auc = roc_auc_score(y_true=np.array(true_onehot_labels),
y_score=np.array(predicted_onehot_scores), average='micro')
# Calculate the average PR
test_prc = average_precision_score(y_true=np.array(true_onehot_labels),
y_score=np.array(predicted_onehot_scores), average="micro")
test_loss = float(test_loss / test_counter)
logger.info("All Test Dataset: Loss {0:g} | AUC {1:g} | AUPRC {2:g}"
.format(test_loss, test_auc, test_prc))
# Predict by threshold
logger.info("Predict by threshold: Precision {0:g}, Recall {1:g}, F1 {2:g}"
.format(test_pre_ts, test_rec_ts, test_F_ts))
logger.info("predict by threshold: hamming_loss {0:g}, roc_auc {1:g}, subset_acc {2:g}, label_rank_av_pr {3:g}"
.format(test_hmloss, test_rocauc, test_subsetacc, test_labelrankap))
# Predict by topK
logger.info("Predict by topK:")
for top_num in range(FLAGS.top_num):
logger.info("Top{0}: Precision {1:g}, Recall {2:g}, F {3:g}"
.format(top_num + 1, test_pre_tk[top_num], test_rec_tk[top_num], test_F_tk[top_num]))
# Save the prediction result
if not os.path.exists(SAVE_DIR):
os.makedirs(SAVE_DIR)
dh.create_prediction_file(output_file=SAVE_DIR + "/predictions.json", data_id=test_data.testid,
all_labels=true_labels, all_predict_labels=predicted_labels,
all_predict_scores=predicted_scores)
logger.info("Done.")
def validation_step(x_validation, y_validation, writer=None):
"""Evaluates model on a validation set"""
batches_validation = dh.batch_iter(
list(zip(x_validation, y_validation)), FLAGS.batch_size,
FLAGS.num_epochs)
# Predict classes by threshold or topk ('ts': threshold; 'tk': topk)
eval_counter, eval_loss, eval_rec_ts, eval_acc_ts, eval_F_ts = 0, 0.0, 0.0, 0.0, 0.0
eval_rec_tk = [0.0] * FLAGS.top_num
eval_acc_tk = [0.0] * FLAGS.top_num
eval_F_tk = [0.0] * FLAGS.top_num
for batch_validation in batches_validation:
x_batch_validation, y_batch_validation = zip(
*batch_validation)
feed_dict = {
ann.input_x: x_batch_validation,
ann.input_y: y_batch_validation,
ann.dropout_keep_prob: 1.0,
ann.is_training: False
}
step, summaries, scores, cur_loss = sess.run([
ann.global_step, validation_summary_op, ann.scores,
ann.loss
], feed_dict)
# Predict by threshold
predicted_labels_threshold, predicted_values_threshold = \
dh.get_label_using_scores_by_threshold(scores=scores, threshold=FLAGS.threshold)
cur_rec_ts, cur_acc_ts, cur_F_ts = 0.0, 0.0, 0.0
for index, predicted_label_threshold in enumerate(
predicted_labels_threshold):
rec_inc_ts, acc_inc_ts, F_inc_ts = dh.cal_metric(
predicted_label_threshold,
y_batch_validation[index])
cur_rec_ts, cur_acc_ts, cur_F_ts = cur_rec_ts + rec_inc_ts, \
cur_acc_ts + acc_inc_ts, \
cur_F_ts + F_inc_ts
cur_rec_ts = cur_rec_ts / len(y_batch_validation)
cur_acc_ts = cur_acc_ts / len(y_batch_validation)
cur_F_ts = cur_F_ts / len(y_batch_validation)
eval_rec_ts, eval_acc_ts, eval_F_ts = eval_rec_ts + cur_rec_ts, \
eval_acc_ts + cur_acc_ts, \
eval_F_ts + cur_F_ts
# Predict by topK
topK_predicted_labels = []
for top_num in range(FLAGS.top_num):
predicted_labels_topk, predicted_values_topk = \
dh.get_label_using_scores_by_topk(scores=scores, top_num=top_num+1)
topK_predicted_labels.append(predicted_labels_topk)
cur_rec_tk = [0.0] * FLAGS.top_num
cur_acc_tk = [0.0] * FLAGS.top_num
cur_F_tk = [0.0] * FLAGS.top_num
for top_num, predicted_labels_topK in enumerate(
topK_predicted_labels):
for index, predicted_label_topK in enumerate(
predicted_labels_topK):
rec_inc_tk, acc_inc_tk, F_inc_tk = dh.cal_metric(
predicted_label_topK,
y_batch_validation[index])
cur_rec_tk[top_num], cur_acc_tk[top_num], cur_F_tk[top_num] = \
cur_rec_tk[top_num] + rec_inc_tk, \
cur_acc_tk[top_num] + acc_inc_tk, \
cur_F_tk[top_num] + F_inc_tk
cur_rec_tk[top_num] = cur_rec_tk[top_num] / len(
y_batch_validation)
cur_acc_tk[top_num] = cur_acc_tk[top_num] / len(
y_batch_validation)
cur_F_tk[top_num] = cur_F_tk[top_num] / len(
y_batch_validation)
eval_rec_tk[top_num], eval_acc_tk[top_num], eval_F_tk[top_num] = \
eval_rec_tk[top_num] + cur_rec_tk[top_num], \
eval_acc_tk[top_num] + cur_acc_tk[top_num], \
eval_F_tk[top_num] + cur_F_tk[top_num]
eval_loss = eval_loss + cur_loss
eval_counter = eval_counter + 1
logger.info("✔︎ validation batch {0}: loss {1:g}".format(
eval_counter, cur_loss))
logger.info(
"︎☛ Predict by threshold: recall {0:g}, accuracy {1:g}, F {2:g}"
.format(cur_rec_ts, cur_acc_ts, cur_F_ts))
logger.info("︎☛ Predict by topK:")
for top_num in range(FLAGS.top_num):
logger.info(
"Top{0}: recall {1:g}, accuracy {2:g}, F {3:g}".
format(top_num + 1, cur_rec_tk[top_num],
cur_acc_tk[top_num], cur_F_tk[top_num]))
if writer:
writer.add_summary(summaries, step)
eval_loss = float(eval_loss / eval_counter)
eval_rec_ts = float(eval_rec_ts / eval_counter)
eval_acc_ts = float(eval_acc_ts / eval_counter)
eval_F_ts = float(eval_F_ts / eval_counter)
for top_num in range(FLAGS.top_num):
eval_rec_tk[top_num] = float(eval_rec_tk[top_num] /
eval_counter)
eval_acc_tk[top_num] = float(eval_acc_tk[top_num] /
eval_counter)
eval_F_tk[top_num] = float(eval_F_tk[top_num] /
eval_counter)
return eval_loss, eval_rec_ts, eval_acc_ts, eval_F_ts, eval_rec_tk, eval_acc_tk, eval_F_tk
def test_model():
model.eval()
item_embedding = model.encode.weight
dr_hidden = model.init_hidden(Config().batch_size)
hitratio_numer = 0
hitratio_denom = 0
ndcg = 0.0
for i, x in enumerate(
dh.batch_iter(train_data,
Config().batch_size,
Config().seq_len,
shuffle=False)):
uids, baskets, lens = x
dynamic_user, _ = model(baskets, lens, dr_hidden)
for uid, l, du in zip(uids, lens, dynamic_user):
scores = []
du_latest = du[l - 1].unsqueeze(0)
# calculating <u,p> score for all test items <u,p> pair
positives = test_data[test_data['userID'] ==
uid].baskets.values[0] # list dim 1
p_length = len(positives)
positives = torch.LongTensor(positives)
# Deal with positives samples
scores_pos = list(
torch.mm(du_latest,
item_embedding[positives].t()).data.numpy()[0])
for s in scores_pos:
scores.append(s)
# Deal with negative samples
negtives = random.sample(list(neg_samples[uid]),
Config().neg_num)
negtives = torch.LongTensor(negtives)
scores_neg = list(
torch.mm(du_latest,
item_embedding[negtives].t()).data.numpy()[0])
for s in scores_neg:
scores.append(s)
# Calculate hit-ratio
index_k = []
for k in range(Config().top_k):
index = scores.index(max(scores))
index_k.append(index)
scores[index] = -9999
hitratio_numer += len(
(set(np.arange(0, p_length)) & set(index_k)))
hitratio_denom += p_length
# Calculate NDCG
u_dcg = 0
u_idcg = 0
for k in range(Config().top_k):
if index_k[k] < p_length: # 长度 p_length 内的为正样本
u_dcg += 1 / math.log(k + 1 + 1, 2)
u_idcg += 1 / math.log(k + 1 + 1, 2)
ndcg += u_dcg / u_idcg
hit_ratio = hitratio_numer / hitratio_denom
ndcg = ndcg / len(train_data)
logger.info(
'[Test]| Epochs {:3d} | Hit ratio {:02.4f} | NDCG {:05.4f} |'.
format(epoch, hit_ratio, ndcg))
return hit_ratio, ndcg
def test_ann():
"""Test ANN model."""
# Print parameters used for the model
dh.tab_printer(args, logger)
# Load word2vec model
word2idx, embedding_matrix = dh.load_word2vec_matrix(args.word2vec_file)
# Load data
logger.info("Loading data...")
logger.info("Data processing...")
test_data = dh.load_data_and_labels(args, args.test_file, word2idx)
# Load ann model
OPTION = dh._option(pattern=1)
if OPTION == 'B':
logger.info("Loading best model...")
checkpoint_file = cm.get_best_checkpoint(BEST_CPT_DIR, select_maximum_value=True)
else:
logger.info("Loading latest model...")
checkpoint_file = tf.train.latest_checkpoint(CPT_DIR)
logger.info(checkpoint_file)
graph = tf.Graph()
with graph.as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=args.allow_soft_placement,
log_device_placement=args.log_device_placement)
session_conf.gpu_options.allow_growth = args.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph("{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
# Get the placeholders from the graph by name
input_x = graph.get_operation_by_name("input_x").outputs[0]
input_y = graph.get_operation_by_name("input_y").outputs[0]
dropout_keep_prob = graph.get_operation_by_name("dropout_keep_prob").outputs[0]
is_training = graph.get_operation_by_name("is_training").outputs[0]
# Tensors we want to evaluate
scores = graph.get_operation_by_name("output/scores").outputs[0]
loss = graph.get_operation_by_name("loss/loss").outputs[0]
# Split the output nodes name by '|' if you have several output nodes
output_node_names = "output/scores"
# Save the .pb model file
output_graph_def = tf.graph_util.convert_variables_to_constants(sess, sess.graph_def,
output_node_names.split("|"))
tf.train.write_graph(output_graph_def, "graph", "graph-ann-{0}.pb".format(MODEL), as_text=False)
# Generate batches for one epoch
batches = dh.batch_iter(list(create_input_data(test_data)), args.batch_size, 1, shuffle=False)
# Collect the predictions here
test_counter, test_loss = 0, 0.0
test_pre_tk = [0.0] * args.topK
test_rec_tk = [0.0] * args.topK
test_F1_tk = [0.0] * args.topK
# Collect the predictions here
true_labels = []
predicted_labels = []
predicted_scores = []
# Collect for calculating metrics
true_onehot_labels = []
predicted_onehot_scores = []
predicted_onehot_labels_ts = []
predicted_onehot_labels_tk = [[] for _ in range(args.topK)]
for batch_test in batches:
x, y_onehot, y = zip(*batch_test)
feed_dict = {
input_x: x,
input_y: y_onehot,
dropout_keep_prob: 1.0,
is_training: False
}
batch_scores, cur_loss = sess.run([scores, loss], feed_dict)
# Prepare for calculating metrics
for i in y_onehot:
true_onehot_labels.append(i)
for j in batch_scores:
predicted_onehot_scores.append(j)
# Get the predicted labels by threshold
batch_predicted_labels_ts, batch_predicted_scores_ts = \
dh.get_label_threshold(scores=batch_scores, threshold=args.threshold)
# Add results to collection
for i in y:
true_labels.append(i)
for j in batch_predicted_labels_ts:
predicted_labels.append(j)
for k in batch_predicted_scores_ts:
predicted_scores.append(k)
# Get onehot predictions by threshold
batch_predicted_onehot_labels_ts = \
dh.get_onehot_label_threshold(scores=batch_scores, threshold=args.threshold)
for i in batch_predicted_onehot_labels_ts:
predicted_onehot_labels_ts.append(i)
# Get onehot predictions by topK
for top_num in range(args.topK):
batch_predicted_onehot_labels_tk = dh.get_onehot_label_topk(scores=batch_scores, top_num=top_num+1)
for i in batch_predicted_onehot_labels_tk:
predicted_onehot_labels_tk[top_num].append(i)
test_loss = test_loss + cur_loss
test_counter = test_counter + 1
# Calculate Precision & Recall & F1
test_pre_ts = precision_score(y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts), average='micro')
test_rec_ts = recall_score(y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts), average='micro')
test_F1_ts = f1_score(y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts), average='micro')
for top_num in range(args.topK):
test_pre_tk[top_num] = precision_score(y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_tk[top_num]),
average='micro')
test_rec_tk[top_num] = recall_score(y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_tk[top_num]),
average='micro')
test_F1_tk[top_num] = f1_score(y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_tk[top_num]),
average='micro')
# Calculate the average AUC
test_auc = roc_auc_score(y_true=np.array(true_onehot_labels),
y_score=np.array(predicted_onehot_scores), average='micro')
# Calculate the average PR
test_prc = average_precision_score(y_true=np.array(true_onehot_labels),
y_score=np.array(predicted_onehot_scores), average="micro")
test_loss = float(test_loss / test_counter)
logger.info("All Test Dataset: Loss {0:g} | AUC {1:g} | AUPRC {2:g}"
.format(test_loss, test_auc, test_prc))
# Predict by threshold
logger.info("Predict by threshold: Precision {0:g}, Recall {1:g}, F1 {2:g}"
.format(test_pre_ts, test_rec_ts, test_F1_ts))
# Predict by topK
logger.info("Predict by topK:")
for top_num in range(args.topK):
logger.info("Top{0}: Precision {1:g}, Recall {2:g}, F1 {3:g}"
.format(top_num + 1, test_pre_tk[top_num], test_rec_tk[top_num], test_F1_tk[top_num]))
# Save the prediction result
if not os.path.exists(SAVE_DIR):
os.makedirs(SAVE_DIR)
dh.create_prediction_file(output_file=SAVE_DIR + "/predictions.json", data_id=test_data['id'],
true_labels=true_labels, predict_labels=predicted_labels,
predict_scores=predicted_scores)
logger.info("All Done.")
def test(saved_file):
# Load data
logger.info("✔︎ Loading data...")
logger.info("✔︎ Training data processing...")
train_data = dh.load_data(Config().TRAININGSET_DIR)
logger.info("✔︎ Test data processing...")
test_data = dh.load_data(Config().TESTSET_DIR)
logger.info("✔︎ Load negative sample...")
# with open(Config().NEG_SAMPLES, 'rb') as handle:
# neg_samples = pickle.load(handle)
neg_samples = {}
item_list = [i for i in range(336)]
# Load model
MODEL_DIR = dh.load_model_file(saved_file)
dr_model = torch.load(MODEL_DIR)
dr_model.eval()
item_embedding = dr_model.encode.weight
hidden = dr_model.init_hidden(Config().batch_size)
hitratio_numer = 0
hitratio_denom = 0
hitratio_numer = 0
hitratio_denom = 0
hitratio_numer_10 = 0
hitratio_numer_5 = 0
ndcg = 0.0
ndcg_denom = 0
hitratio_list_5 = []
hitratio_list_10 = []
ndcg_list = []
for i, x in enumerate(
tqdm(
dh.batch_iter(train_data,
Config().batch_size,
Config().seq_len_test,
shuffle=False))):
uids, baskets, lens = x
dynamic_user, _ = dr_model(baskets, lens, hidden)
for uid, l, du in zip(uids, lens, dynamic_user):
scores = []
du_latest = du[l - 1].unsqueeze(0)
# Deal with positives samples
positives = test_data[test_data['userID'] ==
uid].baskets.values[0][:-1] # list dim 1
p_length = len(positives)
positives = torch.LongTensor(positives)
print("positives: ", positives)
# calculating <u,p> score for all test items <u,p> pair
scores_pos = list(
torch.mm(du_latest,
item_embedding[positives].t()).data.cpu().numpy()[0])
for s in scores_pos:
scores.append(s)
print("score_pos: ", score_pos)
# Deal with negative samples
neg_item_list = list(set(item_list).difference(set(positives)))
negtives = random.sample(neg_item_list, Config().neg_num)
negtives = torch.LongTensor(negtives)
scores_neg = list(
torch.mm(du_latest,
item_embedding[negtives].t()).data.cpu().numpy()[0])
for s in scores_neg:
scores.append(s)
print("scores: ", scores)
# Calculate hit-ratio
index_k = []
for k in range(Config().top_k):
index = scores.index(max(scores))
index_k.append(index)
scores[index] = -9999
print("index_k: ", index_k)
hr_5_numer = len((set(np.arange(0, p_length)) & set(index_k[0:5])))
hr_10_numer = len((set(np.arange(0, p_length)) & set(index_k)))
hitratio_numer_10 += hr_10_numer # np.arange()产生等差数列
hitratio_numer_5 += hr_5_numer
hitratio_denom += p_length
hitratio_list_5.append(hr_5_numer / p_length)
hitratio_list_10.append(hr_10_numer / p_length)
# print("hitratio_list_5: ", hitratio_list_5)
# print("hitratio_list_10: ", hitratio_list_10)
# hitratio_numer += len((set(np.arange(0, p_length)) & set(index_k)))
# hitratio_denom += p_length
# Calculate NDCG
u_dcg = 0
u_idcg = 0
for k in range(Config().top_k):
if index_k[k] < p_length: # 长度 p_length 内的为正样本
u_dcg += 1 / math.log(k + 1 + 1, 2)
u_idcg += 1 / math.log(k + 1 + 1, 2)
ndcg += u_dcg / u_idcg
ndcg_denom += 1
ndcg_list.append(u_dcg / u_idcg)
# print("ndcg_list: ", ndcg_list)
hit_ratio_5 = hitratio_numer_5 / hitratio_denom
hit_ratio_10 = hitratio_numer_10 / hitratio_denom
ndcg = ndcg / ndcg_denom
print('Hit ratio@5: {1} | Hit ratio@10: {1}'.format(
hit_ratio_5, hit_ratio_10))
print('NDCG[{0}]: {1}'.format(Config().top_k, ndcg))
return hitratio_list_5, hitratio_list_10, ndcg_list
def train_mann():
"""Training MANN model."""
# Load sentences, labels, and training parameters
logger.info('✔︎ Loading data...')
logger.info('✔︎ Training data processing...')
train_data = dh.load_data_and_labels(FLAGS.training_data_file,
FLAGS.num_classes,
FLAGS.embedding_dim)
logger.info('✔︎ Validation data processing...')
validation_data = \
dh.load_data_and_labels(FLAGS.validation_data_file, FLAGS.num_classes, FLAGS.embedding_dim)
logger.info('Recommended padding Sequence length is: {0}'.format(
FLAGS.pad_seq_len))
logger.info('✔︎ Training data padding...')
x_train, y_train = dh.pad_data(train_data, FLAGS.pad_seq_len)
logger.info('✔︎ Validation data padding...')
x_validation, y_validation = dh.pad_data(validation_data,
FLAGS.pad_seq_len)
# Build vocabulary
VOCAB_SIZE = dh.load_vocab_size(FLAGS.embedding_dim)
pretrained_word2vec_matrix = dh.load_word2vec_matrix(
VOCAB_SIZE, FLAGS.embedding_dim)
# Build a graph and mann object
with tf.Graph().as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=FLAGS.allow_soft_placement,
log_device_placement=FLAGS.log_device_placement)
session_conf.gpu_options.allow_growth = FLAGS.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
mann = TextMANN(sequence_length=FLAGS.pad_seq_len,
num_classes=FLAGS.num_classes,
batch_size=FLAGS.batch_size,
vocab_size=VOCAB_SIZE,
lstm_hidden_size=FLAGS.lstm_hidden_size,
fc_hidden_size=FLAGS.fc_hidden_size,
embedding_size=FLAGS.embedding_dim,
embedding_type=FLAGS.embedding_type,
l2_reg_lambda=FLAGS.l2_reg_lambda,
pretrained_embedding=pretrained_word2vec_matrix)
# Define training procedure
with tf.control_dependencies(
tf.get_collection(tf.GraphKeys.UPDATE_OPS)):
learning_rate = tf.train.exponential_decay(
learning_rate=FLAGS.learning_rate,
global_step=mann.global_step,
decay_steps=FLAGS.decay_steps,
decay_rate=FLAGS.decay_rate,
staircase=True)
optimizer = tf.train.AdamOptimizer(learning_rate)
grads, vars = zip(*optimizer.compute_gradients(mann.loss))
grads, _ = tf.clip_by_global_norm(grads,
clip_norm=FLAGS.norm_ratio)
train_op = optimizer.apply_gradients(
zip(grads, vars),
global_step=mann.global_step,
name="train_op")
# Keep track of gradient values and sparsity (optional)
grad_summaries = []
for g, v in zip(grads, vars):
if g is not None:
grad_hist_summary = tf.summary.histogram(
"{0}/grad/hist".format(v.name), g)
sparsity_summary = tf.summary.scalar(
"{0}/grad/sparsity".format(v.name),
tf.nn.zero_fraction(g))
grad_summaries.append(grad_hist_summary)
grad_summaries.append(sparsity_summary)
grad_summaries_merged = tf.summary.merge(grad_summaries)
# Output directory for models and summaries
if FLAGS.train_or_restore == 'R':
MODEL = input(
"☛ Please input the checkpoints model you want to restore, "
"it should be like(1490175368): "
) # The model you want to restore
while not (MODEL.isdigit() and len(MODEL) == 10):
MODEL = input(
'✘ The format of your input is illegal, please re-input: '
)
logger.info(
'✔︎ The format of your input is legal, now loading to next step...'
)
checkpoint_dir = 'runs/' + MODEL + '/checkpoints/'
out_dir = os.path.abspath(
os.path.join(os.path.curdir, "runs", MODEL))
logger.info("✔︎ Writing to {0}\n".format(out_dir))
else:
timestamp = str(int(time.time()))
out_dir = os.path.abspath(
os.path.join(os.path.curdir, "runs", timestamp))
logger.info("✔︎ Writing to {0}\n".format(out_dir))
# Summaries for loss
loss_summary = tf.summary.scalar("loss", mann.loss)
# Train summaries
train_summary_op = tf.summary.merge(
[loss_summary, grad_summaries_merged])
train_summary_dir = os.path.join(out_dir, "summaries", "train")
train_summary_writer = tf.summary.FileWriter(
train_summary_dir, sess.graph)
# Validation summaries
validation_summary_op = tf.summary.merge([loss_summary])
validation_summary_dir = os.path.join(out_dir, "summaries",
"validation")
validation_summary_writer = tf.summary.FileWriter(
validation_summary_dir, sess.graph)
saver = tf.train.Saver(tf.global_variables(),
max_to_keep=FLAGS.num_checkpoints)
if FLAGS.train_or_restore == 'R':
# Load mann model
logger.info("✔ Loading model...")
checkpoint_file = tf.train.latest_checkpoint(checkpoint_dir)
logger.info(checkpoint_file)
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph(
"{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
else:
checkpoint_dir = os.path.abspath(
os.path.join(out_dir, "checkpoints"))
if not os.path.exists(checkpoint_dir):
os.makedirs(checkpoint_dir)
sess.run(tf.global_variables_initializer())
sess.run(tf.local_variables_initializer())
# Embedding visualization config
config = projector.ProjectorConfig()
embedding_conf = config.embeddings.add()
embedding_conf.tensor_name = 'embedding'
embedding_conf.metadata_path = FLAGS.metadata_file
projector.visualize_embeddings(train_summary_writer, config)
projector.visualize_embeddings(validation_summary_writer,
config)
# Save the embedding visualization
saver.save(
sess, os.path.join(out_dir, 'embedding', 'embedding.ckpt'))
current_step = sess.run(mann.global_step)
def train_step(x_batch, y_batch):
"""A single training step"""
feed_dict = {
mann.input_x: x_batch,
mann.input_y: y_batch,
mann.dropout_keep_prob: FLAGS.dropout_keep_prob,
mann.is_training: True
}
_, step, summaries, loss = sess.run(
[train_op, mann.global_step, train_summary_op, mann.loss],
feed_dict)
logger.info("step {0}: loss {1:g}".format(step, loss))
train_summary_writer.add_summary(summaries, step)
def validation_step(x_validation, y_validation, writer=None):
"""Evaluates model on a validation set"""
batches_validation = dh.batch_iter(
list(zip(x_validation, y_validation)), FLAGS.batch_size, 1)
# Predict classes by threshold or topk ('ts': threshold; 'tk': topk)
eval_counter, eval_loss, eval_rec_ts, eval_pre_ts, eval_F_ts = 0, 0.0, 0.0, 0.0, 0.0
eval_rec_tk = [0.0] * FLAGS.top_num
eval_pre_tk = [0.0] * FLAGS.top_num
eval_F_tk = [0.0] * FLAGS.top_num
for batch_validation in batches_validation:
x_batch_validation, y_batch_validation = zip(
*batch_validation)
feed_dict = {
mann.input_x: x_batch_validation,
mann.input_y: y_batch_validation,
mann.dropout_keep_prob: 1.0,
mann.is_training: False
}
step, summaries, scores, cur_loss = sess.run([
mann.global_step, validation_summary_op, mann.scores,
mann.loss
], feed_dict)
# Predict by threshold
predicted_labels_threshold, predicted_values_threshold = \
dh.get_label_using_scores_by_threshold(scores=scores, threshold=FLAGS.threshold)
cur_rec_ts, cur_pre_ts, cur_F_ts = 0.0, 0.0, 0.0
for index, predicted_label_threshold in enumerate(
predicted_labels_threshold):
rec_inc_ts, pre_inc_ts = dh.cal_metric(
predicted_label_threshold,
y_batch_validation[index])
cur_rec_ts, cur_pre_ts = cur_rec_ts + rec_inc_ts, cur_pre_ts + pre_inc_ts
cur_rec_ts = cur_rec_ts / len(y_batch_validation)
cur_pre_ts = cur_pre_ts / len(y_batch_validation)
cur_F_ts = dh.cal_F(cur_rec_ts, cur_pre_ts)
eval_rec_ts, eval_pre_ts = eval_rec_ts + cur_rec_ts, eval_pre_ts + cur_pre_ts
# Predict by topK
topK_predicted_labels = []
for top_num in range(FLAGS.top_num):
predicted_labels_topk, predicted_values_topk = \
dh.get_label_using_scores_by_topk(scores=scores, top_num=top_num+1)
topK_predicted_labels.append(predicted_labels_topk)
cur_rec_tk = [0.0] * FLAGS.top_num
cur_pre_tk = [0.0] * FLAGS.top_num
cur_F_tk = [0.0] * FLAGS.top_num
for top_num, predicted_labels_topK in enumerate(
topK_predicted_labels):
for index, predicted_label_topK in enumerate(
predicted_labels_topK):
rec_inc_tk, pre_inc_tk = dh.cal_metric(
predicted_label_topK,
y_batch_validation[index])
cur_rec_tk[top_num], cur_pre_tk[top_num] = \
cur_rec_tk[top_num] + rec_inc_tk, cur_pre_tk[top_num] + pre_inc_tk
cur_rec_tk[top_num] = cur_rec_tk[top_num] / len(
y_batch_validation)
cur_pre_tk[top_num] = cur_pre_tk[top_num] / len(
y_batch_validation)
cur_F_tk[top_num] = dh.cal_F(cur_rec_tk[top_num],
cur_pre_tk[top_num])
eval_rec_tk[top_num], eval_pre_tk[top_num] = \
eval_rec_tk[top_num] + cur_rec_tk[top_num], eval_pre_tk[top_num] + cur_pre_tk[top_num]
eval_loss = eval_loss + cur_loss
eval_counter = eval_counter + 1
logger.info("✔︎ validation batch {0}: loss {1:g}".format(
eval_counter, cur_loss))
logger.info(
"︎☛ Predict by threshold: recall {0:g}, precision {1:g}, F {2:g}"
.format(cur_rec_ts, cur_pre_ts, cur_F_ts))
logger.info("︎☛ Predict by topK:")
for top_num in range(FLAGS.top_num):
logger.info(
"Top{0}: recall {1:g}, precision {2:g}, F {3:g}".
format(top_num + 1, cur_rec_tk[top_num],
cur_pre_tk[top_num], cur_F_tk[top_num]))
if writer:
writer.add_summary(summaries, step)
eval_loss = float(eval_loss / eval_counter)
eval_rec_ts = float(eval_rec_ts / eval_counter)
eval_pre_ts = float(eval_pre_ts / eval_counter)
eval_F_ts = dh.cal_F(eval_rec_ts, eval_pre_ts)
for top_num in range(FLAGS.top_num):
eval_rec_tk[top_num] = float(eval_rec_tk[top_num] /
eval_counter)
eval_pre_tk[top_num] = float(eval_pre_tk[top_num] /
eval_counter)
eval_F_tk[top_num] = dh.cal_F(eval_rec_tk[top_num],
eval_pre_tk[top_num])
return eval_loss, eval_rec_ts, eval_pre_ts, eval_F_ts, eval_rec_tk, eval_pre_tk, eval_F_tk
# Generate batches
batches_train = dh.batch_iter(list(zip(x_train, y_train)),
FLAGS.batch_size, FLAGS.num_epochs)
num_batches_per_epoch = int(
(len(x_train) - 1) / FLAGS.batch_size) + 1
# Training loop. For each batch...
for batch_train in batches_train:
x_batch_train, y_batch_train = zip(*batch_train)
train_step(x_batch_train, y_batch_train)
current_step = tf.train.global_step(sess, mann.global_step)
if current_step % FLAGS.evaluate_every == 0:
logger.info("\nEvaluation:")
eval_loss, eval_rec_ts, eval_pre_ts, eval_F_ts, eval_rec_tk, eval_pre_tk, eval_F_tk = \
validation_step(x_validation, y_validation, writer=validation_summary_writer)
logger.info(
"All Validation set: Loss {0:g}".format(eval_loss))
# Predict by threshold
logger.info(
"︎☛ Predict by threshold: Recall {0:g}, Precision {1:g}, F {2:g}"
.format(eval_rec_ts, eval_pre_ts, eval_F_ts))
# Predict by topK
logger.info("︎☛ Predict by topK:")
for top_num in range(FLAGS.top_num):
logger.info(
"Top{0}: Recall {1:g}, Precision {2:g}, F {3:g}".
format(top_num + 1, eval_rec_tk[top_num],
eval_pre_tk[top_num], eval_F_tk[top_num]))
if current_step % FLAGS.checkpoint_every == 0:
checkpoint_prefix = os.path.join(checkpoint_dir, "model")
path = saver.save(sess,
checkpoint_prefix,
global_step=current_step)
logger.info(
"✔︎ Saved model checkpoint to {0}\n".format(path))
if current_step % num_batches_per_epoch == 0:
current_epoch = current_step // num_batches_per_epoch
logger.info(
"✔︎ Epoch {0} has finished!".format(current_epoch))
logger.info("✔︎ Done.")
def train_hmidp():
"""Training hmdip model."""
# Load sentences, labels, and training parameters
logger.info("✔︎ Loading data...")
logger.info("✔︎ Training data processing...")
train_data = dh.load_data_and_labels(FLAGS.training_data_file,
FLAGS.embedding_dim,
data_aug_flag=False)
logger.info("✔︎ Validation data processing...")
val_data = dh.load_data_and_labels(FLAGS.validation_data_file,
FLAGS.embedding_dim,
data_aug_flag=False)
logger.info("✔︎ Training data padding...")
x_train_content, x_train_question, x_train_option, y_train = dh.pad_data(
train_data, FLAGS.pad_seq_len)
logger.info("✔︎ Validation data padding...")
x_val_content, x_val_question, x_val_option, y_val = dh.pad_data(
val_data, FLAGS.pad_seq_len)
# Build vocabulary
VOCAB_SIZE, pretrained_word2vec_matrix = dh.load_word2vec_matrix(
FLAGS.embedding_dim)
# Build a graph and hmidp object
with tf.Graph().as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=FLAGS.allow_soft_placement,
log_device_placement=FLAGS.log_device_placement)
session_conf.gpu_options.allow_growth = FLAGS.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
hmidp = TextHMIDP(
sequence_length=list(map(int, FLAGS.pad_seq_len.split(','))),
vocab_size=VOCAB_SIZE,
fc_hidden_size=FLAGS.fc_hidden_size,
lstm_hidden_size=FLAGS.lstm_hidden_size,
embedding_size=FLAGS.embedding_dim,
embedding_type=FLAGS.embedding_type,
filter_sizes=list(map(int, FLAGS.filter_sizes.split(','))),
num_filters=list(map(int, FLAGS.num_filters.split(','))),
pooling_size=FLAGS.pooling_size,
l2_reg_lambda=FLAGS.l2_reg_lambda,
pretrained_embedding=pretrained_word2vec_matrix)
# Define training procedure
with tf.control_dependencies(
tf.get_collection(tf.GraphKeys.UPDATE_OPS)):
learning_rate = tf.train.exponential_decay(
learning_rate=FLAGS.learning_rate,
global_step=hmidp.global_step,
decay_steps=FLAGS.decay_steps,
decay_rate=FLAGS.decay_rate,
staircase=True)
optimizer = tf.train.AdamOptimizer(learning_rate)
grads, vars = zip(*optimizer.compute_gradients(hmidp.loss))
grads, _ = tf.clip_by_global_norm(grads,
clip_norm=FLAGS.norm_ratio)
train_op = optimizer.apply_gradients(
zip(grads, vars),
global_step=hmidp.global_step,
name="train_op")
# Keep track of gradient values and sparsity (optional)
grad_summaries = []
for g, v in zip(grads, vars):
if g is not None:
grad_hist_summary = tf.summary.histogram(
"{0}/grad/hist".format(v.name), g)
sparsity_summary = tf.summary.scalar(
"{0}/grad/sparsity".format(v.name),
tf.nn.zero_fraction(g))
grad_summaries.append(grad_hist_summary)
grad_summaries.append(sparsity_summary)
grad_summaries_merged = tf.summary.merge(grad_summaries)
# Output directory for models and summaries
if FLAGS.train_or_restore == 'R':
MODEL = input(
"☛ Please input the checkpoints model you want to restore, "
"it should be like(1490175368): "
) # The model you want to restore
while not (MODEL.isdigit() and len(MODEL) == 10):
MODEL = input(
"✘ The format of your input is illegal, please re-input: "
)
logger.info(
"✔︎ The format of your input is legal, now loading to next step..."
)
out_dir = os.path.abspath(
os.path.join(os.path.curdir, "runs", MODEL))
logger.info("✔︎ Writing to {0}\n".format(out_dir))
else:
timestamp = str(int(time.time()))
out_dir = os.path.abspath(
os.path.join(os.path.curdir, "runs", timestamp))
logger.info("✔︎ Writing to {0}\n".format(out_dir))
checkpoint_dir = os.path.abspath(
os.path.join(out_dir, "checkpoints"))
best_checkpoint_dir = os.path.abspath(
os.path.join(out_dir, "bestcheckpoints"))
# Summaries for loss
loss_summary = tf.summary.scalar("loss", hmidp.loss)
# Train summaries
train_summary_op = tf.summary.merge(
[loss_summary, grad_summaries_merged])
train_summary_dir = os.path.join(out_dir, "summaries", "train")
train_summary_writer = tf.summary.FileWriter(
train_summary_dir, sess.graph)
# Validation summaries
validation_summary_op = tf.summary.merge([loss_summary])
validation_summary_dir = os.path.join(out_dir, "summaries",
"validation")
validation_summary_writer = tf.summary.FileWriter(
validation_summary_dir, sess.graph)
saver = tf.train.Saver(tf.global_variables(),
max_to_keep=FLAGS.num_checkpoints)
best_saver = cm.BestCheckpointSaver(save_dir=best_checkpoint_dir,
num_to_keep=3,
maximize=False)
if FLAGS.train_or_restore == 'R':
# Load hmidp model
logger.info("✔︎ Loading model...")
checkpoint_file = tf.train.latest_checkpoint(checkpoint_dir)
logger.info(checkpoint_file)
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph(
"{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
else:
if not os.path.exists(checkpoint_dir):
os.makedirs(checkpoint_dir)
sess.run(tf.global_variables_initializer())
sess.run(tf.local_variables_initializer())
# Embedding visualization config
config = projector.ProjectorConfig()
embedding_conf = config.embeddings.add()
embedding_conf.tensor_name = "embedding"
embedding_conf.metadata_path = FLAGS.metadata_file
projector.visualize_embeddings(train_summary_writer, config)
projector.visualize_embeddings(validation_summary_writer,
config)
# Save the embedding visualization
saver.save(
sess, os.path.join(out_dir, "embedding", "embedding.ckpt"))
current_step = sess.run(hmidp.global_step)
def train_step(x_batch_content, x_batch_question, x_batch_option,
y_batch):
"""A single training step"""
feed_dict = {
hmidp.input_x_content: x_batch_content,
hmidp.input_x_question: x_batch_question,
hmidp.input_x_option: x_batch_option,
hmidp.input_y: y_batch,
hmidp.dropout_keep_prob: FLAGS.dropout_keep_prob,
hmidp.is_training: True
}
_, step, summaries, loss = sess.run([
train_op, hmidp.global_step, train_summary_op, hmidp.loss
], feed_dict)
logger.info("step {0}: loss {1:g}".format(step, loss))
train_summary_writer.add_summary(summaries, step)
def validation_step(x_val_content,
x_val_question,
x_val_option,
y_val,
writer=None):
"""Evaluates model on a validation set"""
batches_validation = dh.batch_iter(
list(
zip(x_val_content, x_val_question, x_val_option,
y_val)), FLAGS.batch_size, 1)
eval_counter, eval_loss = 0, 0.0
true_labels = []
predicted_scores = []
for batch_validation in batches_validation:
x_batch_content, x_batch_question, x_batch_option, y_batch = zip(
*batch_validation)
feed_dict = {
hmidp.input_x_content: x_batch_content,
hmidp.input_x_question: x_batch_question,
hmidp.input_x_option: x_batch_option,
hmidp.input_y: y_batch,
hmidp.dropout_keep_prob: 1.0,
hmidp.is_training: False
}
step, summaries, scores, cur_loss = sess.run([
hmidp.global_step, validation_summary_op, hmidp.scores,
hmidp.loss
], feed_dict)
# Prepare for calculating metrics
for i in y_batch:
true_labels.append(i)
for j in scores:
predicted_scores.append(j)
eval_loss = eval_loss + cur_loss
eval_counter = eval_counter + 1
if writer:
writer.add_summary(summaries, step)
eval_loss = float(eval_loss / eval_counter)
# Calculate PCC & DOA
pcc, doa = dh.evaluation(true_labels, predicted_scores)
# Calculate RMSE
rmse = mean_squared_error(true_labels, predicted_scores)**0.5
return eval_loss, pcc, doa, rmse
# Generate batches
batches_train = dh.batch_iter(
list(
zip(x_train_content, x_train_question, x_train_option,
y_train)), FLAGS.batch_size, FLAGS.num_epochs)
num_batches_per_epoch = int(
(len(y_train) - 1) / FLAGS.batch_size) + 1
# Training loop. For each batch...
for batch_train in batches_train:
x_batch_train_content, x_batch_train_question, x_batch_train_option, y_batch_train = zip(
*batch_train)
train_step(x_batch_train_content, x_batch_train_question,
x_batch_train_option, y_batch_train)
current_step = tf.train.global_step(sess, hmidp.global_step)
if current_step % FLAGS.evaluate_every == 0:
logger.info("\nEvaluation:")
eval_loss, pcc, doa, rmse = validation_step(
x_val_content,
x_val_question,
x_val_option,
y_val,
writer=validation_summary_writer)
logger.info(
"All Validation set: Loss {0:g} | PCC {1:g} | DOA {2:g} | RMSE {3:g}"
.format(eval_loss, pcc, doa, rmse))
best_saver.handle(rmse, sess, current_step)
if current_step % FLAGS.checkpoint_every == 0:
checkpoint_prefix = os.path.join(checkpoint_dir, "model")
path = saver.save(sess,
checkpoint_prefix,
global_step=current_step)
logger.info(
"✔︎ Saved model checkpoint to {0}\n".format(path))
if current_step % num_batches_per_epoch == 0:
current_epoch = current_step // num_batches_per_epoch
logger.info(
"✔︎ Epoch {0} has finished!".format(current_epoch))
logger.info("✔︎ Done.")
def test_cnn():
"""Test CNN model."""
# Load data
logger.info("✔︎ Loading data...")
logger.info("Recommended padding Sequence length is: {0}".format(FLAGS.pad_seq_len))
logger.info("✔︎ Test data processing...")
test_data = dh.load_data_and_labels(FLAGS.test_data_file, FLAGS.num_classes,
FLAGS.embedding_dim, data_aug_flag=False)
logger.info("✔︎ Test data padding...")
x_test, y_test = dh.pad_data(test_data, FLAGS.pad_seq_len)
y_test_labels = test_data.labels
# Load cnn model
BEST_OR_LATEST = input("☛ Load Best or Latest Model?(B/L): ")
while not (BEST_OR_LATEST.isalpha() and BEST_OR_LATEST.upper() in ['B', 'L']):
BEST_OR_LATEST = input("✘ The format of your input is illegal, please re-input: ")
if BEST_OR_LATEST == 'B':
logger.info("✔︎ Loading best model...")
checkpoint_file = cm.get_best_checkpoint(FLAGS.best_checkpoint_dir, select_maximum_value=True)
else:
logger.info("✔︎ Loading latest model...")
checkpoint_file = tf.train.latest_checkpoint(FLAGS.checkpoint_dir)
logger.info(checkpoint_file)
graph = tf.Graph()
with graph.as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=FLAGS.allow_soft_placement,
log_device_placement=FLAGS.log_device_placement)
session_conf.gpu_options.allow_growth = FLAGS.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph("{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
# Get the placeholders from the graph by name
input_x = graph.get_operation_by_name("input_x").outputs[0]
input_y = graph.get_operation_by_name("input_y").outputs[0]
dropout_keep_prob = graph.get_operation_by_name("dropout_keep_prob").outputs[0]
is_training = graph.get_operation_by_name("is_training").outputs[0]
# Tensors we want to evaluate
scores = graph.get_operation_by_name("output/scores").outputs[0]
loss = graph.get_operation_by_name("loss/loss").outputs[0]
# Split the output nodes name by '|' if you have several output nodes
output_node_names = "output/logits|output/scores"
# Save the .pb model file
output_graph_def = tf.graph_util.convert_variables_to_constants(sess, sess.graph_def,
output_node_names.split("|"))
tf.train.write_graph(output_graph_def, "graph", "graph-cnn-{0}.pb".format(MODEL), as_text=False)
# Generate batches for one epoch
batches = dh.batch_iter(list(zip(x_test, y_test, y_test_labels)), FLAGS.batch_size, 1, shuffle=False)
# Collect the predictions here
all_labels = []
all_predicted_labels = []
all_predicted_values = []
# Calculate the metric
test_counter, test_loss, test_rec, test_pre, test_F = 0, 0.0, 0.0, 0.0, 0.0
for batch_test in batches:
x_batch_test, y_batch_test, y_batch_test_labels = zip(*batch_test)
feed_dict = {
input_x: x_batch_test,
input_y: y_batch_test,
dropout_keep_prob: 1.0,
is_training: False
}
batch_scores, cur_loss = sess.run([scores, loss], feed_dict)
# Predict by threshold
predicted_labels_threshold, predicted_values_threshold = \
dh.get_label_using_scores_by_threshold(scores=batch_scores, threshold=FLAGS.threshold)
cur_rec, cur_pre, cur_F = 0.0, 0.0, 0.0
for index, predicted_label_threshold in enumerate(predicted_labels_threshold):
rec_inc, pre_inc = dh.cal_metric(predicted_label_threshold, y_batch_test[index])
cur_rec, cur_pre = cur_rec + rec_inc, cur_pre + pre_inc
cur_rec = cur_rec / len(y_batch_test)
cur_pre = cur_pre / len(y_batch_test)
test_rec, test_pre = test_rec + cur_rec, test_pre + cur_pre
# Add results to collection
for item in y_batch_test_labels:
all_labels.append(item)
for item in predicted_labels_threshold:
all_predicted_labels.append(item)
for item in predicted_values_threshold:
all_predicted_values.append(item)
test_loss = test_loss + cur_loss
test_counter = test_counter + 1
test_loss = float(test_loss / test_counter)
test_rec = float(test_rec / test_counter)
test_pre = float(test_pre / test_counter)
test_F = dh.cal_F(test_rec, test_pre)
logger.info("☛ All Test Dataset: Loss {0:g}".format(test_loss))
# Predict by threshold
logger.info("☛ Predict by threshold: Recall {0:g}, Precision {1:g}, F {2:g}"
.format(test_rec, test_pre, test_F))
# Save the prediction result
if not os.path.exists(SAVE_DIR):
os.makedirs(SAVE_DIR)
dh.create_prediction_file(output_file=SAVE_DIR + "/predictions.json", data_id=test_data.testid,
all_labels=all_labels, all_predict_labels=all_predicted_labels,
all_predict_values=all_predicted_values)
logger.info("✔︎ Done.")
def test_mann():
"""Test MANN model."""
# Load data
logger.info("✔ Loading data...")
logger.info('Recommended padding Sequence length is: {0}'.format(FLAGS.pad_seq_len))
logger.info('✔︎ Test data processing...')
test_data = dh.load_data_and_labels(FLAGS.test_data_file, FLAGS.num_classes, FLAGS.embedding_dim)
logger.info('✔︎ Test data padding...')
x_test, y_test = dh.pad_data(test_data, FLAGS.pad_seq_len)
# Load mann model
logger.info("✔ Loading model...")
checkpoint_file = tf.train.latest_checkpoint(FLAGS.checkpoint_dir)
logger.info(checkpoint_file)
graph = tf.Graph()
with graph.as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=FLAGS.allow_soft_placement,
log_device_placement=FLAGS.log_device_placement)
session_conf.gpu_options.allow_growth = FLAGS.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph("{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
# Get the placeholders from the graph by name
input_x = graph.get_operation_by_name("input_x").outputs[0]
input_y = graph.get_operation_by_name("input_y").outputs[0]
dropout_keep_prob = graph.get_operation_by_name("dropout_keep_prob").outputs[0]
is_training = graph.get_operation_by_name("is_training").outputs[0]
# Tensors we want to evaluate
scores = graph.get_operation_by_name("output/scores").outputs[0]
loss = graph.get_operation_by_name("loss/loss").outputs[0]
# Split the output nodes name by '|' if you have several output nodes
output_node_names = 'output/logits|output/scores'
# Save the .pb model file
output_graph_def = tf.graph_util.convert_variables_to_constants(sess, sess.graph_def,
output_node_names.split("|"))
tf.train.write_graph(output_graph_def, 'graph', 'graph-mann-{0}.pb'.format(MODEL), as_text=False)
# Generate batches for one epoch
batches = dh.batch_iter(list(zip(x_test, y_test)), FLAGS.batch_size, 1, shuffle=False)
# Collect the predictions here
all_predicted_label_ts = []
all_predicted_values_ts = []
all_predicted_label_tk = []
all_predicted_values_tk = []
# Calculate the metric
test_counter, test_loss, test_rec_ts, test_acc_ts, test_F_ts = 0, 0.0, 0.0, 0.0, 0.0
test_rec_tk = [0.0] * FLAGS.top_num
test_acc_tk = [0.0] * FLAGS.top_num
test_F_tk = [0.0] * FLAGS.top_num
for batch_test in batches:
x_batch_test, y_batch_test = zip(*batch_test)
feed_dict = {
input_x: x_batch_test,
input_y: y_batch_test,
dropout_keep_prob: 1.0,
is_training: False
}
batch_scores, cur_loss = sess.run([scores, loss], feed_dict)
# Predict by threshold
predicted_labels_threshold, predicted_values_threshold = \
dh.get_label_using_scores_by_threshold(scores=batch_scores, threshold=FLAGS.threshold)
cur_rec_ts, cur_acc_ts, cur_F_ts = 0.0, 0.0, 0.0
for index, predicted_label_threshold in enumerate(predicted_labels_threshold):
rec_inc_ts, acc_inc_ts, F_inc_ts = dh.cal_metric(predicted_label_threshold,
y_batch_test[index])
cur_rec_ts, cur_acc_ts, cur_F_ts = cur_rec_ts + rec_inc_ts, \
cur_acc_ts + acc_inc_ts, \
cur_F_ts + F_inc_ts
cur_rec_ts = cur_rec_ts / len(y_batch_test)
cur_acc_ts = cur_acc_ts / len(y_batch_test)
cur_F_ts = cur_F_ts / len(y_batch_test)
test_rec_ts, test_acc_ts, test_F_ts = test_rec_ts + cur_rec_ts, \
test_acc_ts + cur_acc_ts, \
test_F_ts + cur_F_ts
# Add results to collection
for item in predicted_labels_threshold:
all_predicted_label_ts.append(item)
for item in predicted_values_threshold:
all_predicted_values_ts.append(item)
# Predict by topK
topK_predicted_labels = []
for top_num in range(FLAGS.top_num):
predicted_labels_topk, predicted_values_topk = \
dh.get_label_using_scores_by_topk(batch_scores, top_num=top_num + 1)
topK_predicted_labels.append(predicted_labels_topk)
cur_rec_tk = [0.0] * FLAGS.top_num
cur_acc_tk = [0.0] * FLAGS.top_num
cur_F_tk = [0.0] * FLAGS.top_num
for top_num, predicted_labels_topK in enumerate(topK_predicted_labels):
for index, predicted_label_topK in enumerate(predicted_labels_topK):
rec_inc_tk, acc_inc_tk, F_inc_tk = dh.cal_metric(predicted_label_topK,
y_batch_test[index])
cur_rec_tk[top_num], cur_acc_tk[top_num], cur_F_tk[top_num] = \
cur_rec_tk[top_num] + rec_inc_tk, \
cur_acc_tk[top_num] + acc_inc_tk, \
cur_F_tk[top_num] + F_inc_tk
cur_rec_tk[top_num] = cur_rec_tk[top_num] / len(y_batch_test)
cur_acc_tk[top_num] = cur_acc_tk[top_num] / len(y_batch_test)
cur_F_tk[top_num] = cur_F_tk[top_num] / len(y_batch_test)
test_rec_tk[top_num], test_acc_tk[top_num], test_F_tk[top_num] = \
test_rec_tk[top_num] + cur_rec_tk[top_num], \
test_acc_tk[top_num] + cur_acc_tk[top_num], \
test_F_tk[top_num] + cur_F_tk[top_num]
test_loss = test_loss + cur_loss
test_counter = test_counter + 1
test_loss = float(test_loss / test_counter)
test_rec_ts = float(test_rec_ts / test_counter)
test_acc_ts = float(test_acc_ts / test_counter)
test_F_ts = float(test_F_ts / test_counter)
for top_num in range(FLAGS.top_num):
test_rec_tk[top_num] = float(test_rec_tk[top_num] / test_counter)
test_acc_tk[top_num] = float(test_acc_tk[top_num] / test_counter)
test_F_tk[top_num] = float(test_F_tk[top_num] / test_counter)
logger.info("☛ All Test Dataset: Loss {0:g}".format(test_loss))
# Predict by threshold
logger.info("︎☛ Predict by threshold: Recall {0:g}, accuracy {1:g}, F {2:g}"
.format(test_rec_ts, test_acc_ts, test_F_ts))
# Predict by topK
logger.info("︎☛ Predict by topK:")
for top_num in range(FLAGS.top_num):
logger.info("Top{0}: recall {1:g}, accuracy {2:g}, F {3:g}"
.format(top_num + 1, test_rec_tk[top_num], test_acc_tk[top_num], test_F_tk[top_num]))
# Save the prediction result
if not os.path.exists(SAVE_DIR):
os.makedirs(SAVE_DIR)
dh.create_prediction_file(output_file=SAVE_DIR + '/predictions.json', data_id=test_data.testid,
all_predict_labels_ts=all_predicted_label_ts,
all_predict_values_ts=all_predicted_values_ts)
logger.info("✔ Done.")
def validation_step(x_batch_front,
x_batch_behind,
y_batch,
writer=None):
"""Evaluates model on a validation set"""
batches_validation = dh.batch_iter(
list(zip(x_batch_front, x_batch_behind, y_batch)),
args.batch_size, 1)
eval_counter, eval_loss = 0, 0.0
true_labels = []
predicted_scores = []
predicted_labels = []
for batch_validation in batches_validation:
x_batch_val_front, x_batch_val_behind, y_batch_val = zip(
*batch_validation)
feed_dict = {
ann.input_x_front: x_batch_val_front,
ann.input_x_behind: x_batch_val_behind,
ann.input_y: y_batch_val,
ann.dropout_keep_prob: 1.0,
ann.is_training: False
}
step, summaries, scores, predictions, cur_loss = sess.run([
ann.global_step, validation_summary_op, ann.topKPreds,
ann.predictions, ann.loss
], feed_dict)
# Prepare for calculating metrics
for i in y_batch_val:
true_labels.append(np.argmax(i))
for j in scores[0]:
predicted_scores.append(j[0])
for k in predictions:
predicted_labels.append(k)
eval_loss = eval_loss + cur_loss
eval_counter = eval_counter + 1
if writer:
writer.add_summary(summaries, step)
eval_loss = float(eval_loss / eval_counter)
# Calculate Precision & Recall & F1
eval_acc = accuracy_score(y_true=np.array(true_labels),
y_pred=np.array(predicted_labels))
eval_pre = precision_score(y_true=np.array(true_labels),
y_pred=np.array(predicted_labels),
average='micro')
eval_rec = recall_score(y_true=np.array(true_labels),
y_pred=np.array(predicted_labels),
average='micro')
eval_F1 = f1_score(y_true=np.array(true_labels),
y_pred=np.array(predicted_labels),
average='micro')
# Calculate the average AUC
eval_auc = roc_auc_score(y_true=np.array(true_labels),
y_score=np.array(predicted_scores),
average='micro')
return eval_loss, eval_acc, eval_pre, eval_rec, eval_F1, eval_auc
def validation_step(x_val, y_val, writer=None):
"""Evaluates model on a validation set"""
batches_validation = dh.batch_iter(list(zip(x_val, y_val)),
FLAGS.batch_size, 1)
# Predict classes by threshold or topk ('ts': threshold; 'tk': topk)
eval_counter, eval_loss = 0, 0.0
eval_pre_tk = [0.0] * FLAGS.top_num
eval_rec_tk = [0.0] * FLAGS.top_num
eval_F_tk = [0.0] * FLAGS.top_num
true_onehot_labels = []
predicted_onehot_scores = []
predicted_onehot_labels_ts = []
predicted_onehot_labels_tk = [[] for _ in range(FLAGS.top_num)]
for batch_validation in batches_validation:
x_batch_val, y_batch_val = zip(*batch_validation)
feed_dict = {
rcnn.input_x: x_batch_val,
rcnn.input_y: y_batch_val,
rcnn.dropout_keep_prob: 1.0,
rcnn.is_training: False
}
step, summaries, scores, cur_loss = sess.run([
rcnn.global_step, validation_summary_op, rcnn.scores,
rcnn.loss
], feed_dict)
# Prepare for calculating metrics
for i in y_batch_val:
true_onehot_labels.append(i)
for j in scores:
predicted_onehot_scores.append(j)
# Predict by threshold
batch_predicted_onehot_labels_ts = \
dh.get_onehot_label_threshold(scores=scores, threshold=FLAGS.threshold)
for k in batch_predicted_onehot_labels_ts:
predicted_onehot_labels_ts.append(k)
# Predict by topK
for top_num in range(FLAGS.top_num):
batch_predicted_onehot_labels_tk = dh.get_onehot_label_topk(
scores=scores, top_num=top_num + 1)
for i in batch_predicted_onehot_labels_tk:
predicted_onehot_labels_tk[top_num].append(i)
eval_loss = eval_loss + cur_loss
eval_counter = eval_counter + 1
if writer:
writer.add_summary(summaries, step)
eval_loss = float(eval_loss / eval_counter)
# Calculate Precision & Recall & F1 (threshold & topK)
eval_pre_ts = precision_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts),
average='micro')
eval_rec_ts = recall_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts),
average='micro')
eval_F_ts = f1_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts),
average='micro')
for top_num in range(FLAGS.top_num):
eval_pre_tk[top_num] = precision_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_tk[top_num]),
average='micro')
eval_rec_tk[top_num] = recall_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_tk[top_num]),
average='micro')
eval_F_tk[top_num] = f1_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_tk[top_num]),
average='micro')
# Calculate the average AUC
eval_auc = roc_auc_score(
y_true=np.array(true_onehot_labels),
y_score=np.array(predicted_onehot_scores),
average='micro')
# Calculate the average PR
eval_prc = average_precision_score(
y_true=np.array(true_onehot_labels),
y_score=np.array(predicted_onehot_scores),
average='micro')
return eval_loss, eval_auc, eval_prc, eval_rec_ts, eval_pre_ts, eval_F_ts, \
eval_rec_tk, eval_pre_tk, eval_F_tk
def train_ann():
"""Training ANN model."""
# Print parameters used for the model
dh.tab_printer(args, logger)
# Load word2vec model
word2idx, embedding_matrix = dh.load_word2vec_matrix(args.word2vec_file)
# Load sentences, labels, and training parameters
logger.info("Loading data...")
logger.info("Data processing...")
train_data = dh.load_data_and_labels(args, args.train_file, word2idx)
val_data = dh.load_data_and_labels(args, args.validation_file, word2idx)
# Build a graph and ann object
with tf.Graph().as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=args.allow_soft_placement,
log_device_placement=args.log_device_placement)
session_conf.gpu_options.allow_growth = args.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
ann = TextANN(sequence_length=args.pad_seq_len,
vocab_size=len(word2idx),
embedding_type=args.embedding_type,
embedding_size=args.embedding_dim,
fc_hidden_size=args.fc_dim,
num_classes=args.num_classes,
l2_reg_lambda=args.l2_lambda,
pretrained_embedding=embedding_matrix)
# Define training procedure
with tf.control_dependencies(
tf.get_collection(tf.GraphKeys.UPDATE_OPS)):
learning_rate = tf.train.exponential_decay(
learning_rate=args.learning_rate,
global_step=ann.global_step,
decay_steps=args.decay_steps,
decay_rate=args.decay_rate,
staircase=True)
optimizer = tf.train.AdamOptimizer(learning_rate)
grads, vars = zip(*optimizer.compute_gradients(ann.loss))
grads, _ = tf.clip_by_global_norm(grads,
clip_norm=args.norm_ratio)
train_op = optimizer.apply_gradients(
zip(grads, vars),
global_step=ann.global_step,
name="train_op")
# Keep track of gradient values and sparsity (optional)
grad_summaries = []
for g, v in zip(grads, vars):
if g is not None:
grad_hist_summary = tf.summary.histogram(
"{0}/grad/hist".format(v.name), g)
sparsity_summary = tf.summary.scalar(
"{0}/grad/sparsity".format(v.name),
tf.nn.zero_fraction(g))
grad_summaries.append(grad_hist_summary)
grad_summaries.append(sparsity_summary)
grad_summaries_merged = tf.summary.merge(grad_summaries)
# Output directory for models and summaries
out_dir = dh.get_out_dir(OPTION, logger)
checkpoint_dir = os.path.abspath(
os.path.join(out_dir, "checkpoints"))
best_checkpoint_dir = os.path.abspath(
os.path.join(out_dir, "bestcheckpoints"))
# Summaries for loss
loss_summary = tf.summary.scalar("loss", ann.loss)
# Train summaries
train_summary_op = tf.summary.merge(
[loss_summary, grad_summaries_merged])
train_summary_dir = os.path.join(out_dir, "summaries", "train")
train_summary_writer = tf.summary.FileWriter(
train_summary_dir, sess.graph)
# Validation summaries
validation_summary_op = tf.summary.merge([loss_summary])
validation_summary_dir = os.path.join(out_dir, "summaries",
"validation")
validation_summary_writer = tf.summary.FileWriter(
validation_summary_dir, sess.graph)
saver = tf.train.Saver(tf.global_variables(),
max_to_keep=args.num_checkpoints)
best_saver = cm.BestCheckpointSaver(save_dir=best_checkpoint_dir,
num_to_keep=3,
maximize=True)
if OPTION == 'R':
# Load ann model
logger.info("Loading model...")
checkpoint_file = tf.train.latest_checkpoint(checkpoint_dir)
logger.info(checkpoint_file)
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph(
"{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
if OPTION == 'T':
if not os.path.exists(checkpoint_dir):
os.makedirs(checkpoint_dir)
sess.run(tf.global_variables_initializer())
sess.run(tf.local_variables_initializer())
# Embedding visualization config
config = projector.ProjectorConfig()
embedding_conf = config.embeddings.add()
embedding_conf.tensor_name = "embedding"
embedding_conf.metadata_path = args.metadata_file
projector.visualize_embeddings(train_summary_writer, config)
projector.visualize_embeddings(validation_summary_writer,
config)
# Save the embedding visualization
saver.save(
sess, os.path.join(out_dir, "embedding", "embedding.ckpt"))
current_step = sess.run(ann.global_step)
def train_step(batch_data):
"""A single training step"""
x, y_onehot = zip(*batch_data)
feed_dict = {
ann.input_x: x,
ann.input_y: y_onehot,
ann.dropout_keep_prob: args.dropout_rate,
ann.is_training: True
}
_, step, summaries, loss = sess.run(
[train_op, ann.global_step, train_summary_op, ann.loss],
feed_dict)
logger.info("step {0}: loss {1:g}".format(step, loss))
train_summary_writer.add_summary(summaries, step)
def validation_step(val_loader, writer=None):
"""Evaluates model on a validation set"""
batches_validation = dh.batch_iter(
list(create_input_data(val_loader)), args.batch_size, 1)
# Predict classes by threshold or topk ('ts': threshold; 'tk': topk)
eval_counter, eval_loss = 0, 0.0
eval_pre_tk = [0.0] * args.topK
eval_rec_tk = [0.0] * args.topK
eval_F1_tk = [0.0] * args.topK
true_onehot_labels = []
predicted_onehot_scores = []
predicted_onehot_labels_ts = []
predicted_onehot_labels_tk = [[] for _ in range(args.topK)]
for batch_validation in batches_validation:
x, y_onehot = zip(*batch_validation)
feed_dict = {
ann.input_x: x,
ann.input_y: y_onehot,
ann.dropout_keep_prob: 1.0,
ann.is_training: False
}
step, summaries, scores, cur_loss = sess.run([
ann.global_step, validation_summary_op, ann.scores,
ann.loss
], feed_dict)
# Prepare for calculating metrics
for i in y_onehot:
true_onehot_labels.append(i)
for j in scores:
predicted_onehot_scores.append(j)
# Predict by threshold
batch_predicted_onehot_labels_ts = \
dh.get_onehot_label_threshold(scores=scores, threshold=args.threshold)
for k in batch_predicted_onehot_labels_ts:
predicted_onehot_labels_ts.append(k)
# Predict by topK
for top_num in range(args.topK):
batch_predicted_onehot_labels_tk = dh.get_onehot_label_topk(
scores=scores, top_num=top_num + 1)
for i in batch_predicted_onehot_labels_tk:
predicted_onehot_labels_tk[top_num].append(i)
eval_loss = eval_loss + cur_loss
eval_counter = eval_counter + 1
if writer:
writer.add_summary(summaries, step)
eval_loss = float(eval_loss / eval_counter)
# Calculate Precision & Recall & F1
eval_pre_ts = precision_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts),
average='micro')
eval_rec_ts = recall_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts),
average='micro')
eval_F1_ts = f1_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_ts),
average='micro')
for top_num in range(args.topK):
eval_pre_tk[top_num] = precision_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_tk[top_num]),
average='micro')
eval_rec_tk[top_num] = recall_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_tk[top_num]),
average='micro')
eval_F1_tk[top_num] = f1_score(
y_true=np.array(true_onehot_labels),
y_pred=np.array(predicted_onehot_labels_tk[top_num]),
average='micro')
# Calculate the average AUC
eval_auc = roc_auc_score(
y_true=np.array(true_onehot_labels),
y_score=np.array(predicted_onehot_scores),
average='micro')
# Calculate the average PR
eval_prc = average_precision_score(
y_true=np.array(true_onehot_labels),
y_score=np.array(predicted_onehot_scores),
average='micro')
return eval_loss, eval_auc, eval_prc, eval_pre_ts, eval_rec_ts, eval_F1_ts, \
eval_pre_tk, eval_rec_tk, eval_F1_tk
# Generate batches
batches_train = dh.batch_iter(list(create_input_data(train_data)),
args.batch_size, args.epochs)
num_batches_per_epoch = int(
(len(train_data['pad_seqs']) - 1) / args.batch_size) + 1
# Training loop. For each batch...
for batch_train in batches_train:
train_step(batch_train)
current_step = tf.train.global_step(sess, ann.global_step)
if current_step % args.evaluate_steps == 0:
logger.info("\nEvaluation:")
eval_loss, eval_auc, eval_prc, \
eval_pre_ts, eval_rec_ts, eval_F1_ts, eval_pre_tk, eval_rec_tk, eval_F1_tk = \
validation_step(val_data, writer=validation_summary_writer)
logger.info(
"All Validation set: Loss {0:g} | AUC {1:g} | AUPRC {2:g}"
.format(eval_loss, eval_auc, eval_prc))
# Predict by threshold
logger.info(
"Predict by threshold: Precision {0:g}, Recall {1:g}, F1 {2:g}"
.format(eval_pre_ts, eval_rec_ts, eval_F1_ts))
# Predict by topK
logger.info("Predict by topK:")
for top_num in range(args.topK):
logger.info(
"Top{0}: Precision {1:g}, Recall {2:g}, F1 {3:g}".
format(top_num + 1, eval_pre_tk[top_num],
eval_rec_tk[top_num], eval_F1_tk[top_num]))
best_saver.handle(eval_prc, sess, current_step)
if current_step % args.checkpoint_steps == 0:
checkpoint_prefix = os.path.join(checkpoint_dir, "model")
path = saver.save(sess,
checkpoint_prefix,
global_step=current_step)
logger.info("Saved model checkpoint to {0}\n".format(path))
if current_step % num_batches_per_epoch == 0:
current_epoch = current_step // num_batches_per_epoch
logger.info(
"Epoch {0} has finished!".format(current_epoch))
logger.info("All Done.")
def train_abcnn():
"""Training ABCNN model."""
# Print parameters used for the model
dh.tab_printer(args, logger)
# Load sentences, labels, and training parameters
logger.info("Loading data...")
logger.info("Data processing...")
train_data = dh.load_data_and_labels(args.train_file, args.word2vec_file)
validation_data = dh.load_data_and_labels(args.validation_file, args.word2vec_file)
logger.info("Data padding...")
x_train_front, x_train_behind, y_train = dh.pad_data(train_data, args.pad_seq_len)
x_validation_front, x_validation_behind, y_validation = dh.pad_data(validation_data, args.pad_seq_len)
# Build vocabulary
VOCAB_SIZE, EMBEDDING_SIZE, pretrained_word2vec_matrix = dh.load_word2vec_matrix(args.word2vec_file)
# Build a graph and abcnn object
with tf.Graph().as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=args.allow_soft_placement,
log_device_placement=args.log_device_placement)
session_conf.gpu_options.allow_growth = args.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
abcnn = TextABCNN(
sequence_length=args.pad_seq_len,
vocab_size=VOCAB_SIZE,
embedding_type=args.embedding_type,
embedding_size=EMBEDDING_SIZE,
filter_sizes=args.filter_sizes,
num_filters=args.num_filters,
fc_hidden_size=args.fc_dim,
num_classes=y_train.shape[1],
l2_reg_lambda=args.l2_lambda,
pretrained_embedding=pretrained_word2vec_matrix)
# Define training procedure
with tf.control_dependencies(tf.get_collection(tf.GraphKeys.UPDATE_OPS)):
learning_rate = tf.train.exponential_decay(learning_rate=args.learning_rate,
global_step=abcnn.global_step, decay_steps=args.decay_steps,
decay_rate=args.decay_rate, staircase=True)
optimizer = tf.train.AdamOptimizer(learning_rate)
grads, vars = zip(*optimizer.compute_gradients(abcnn.loss))
grads, _ = tf.clip_by_global_norm(grads, clip_norm=args.norm_ratio)
train_op = optimizer.apply_gradients(zip(grads, vars), global_step=abcnn.global_step, name="train_op")
# Keep track of gradient values and sparsity (optional)
grad_summaries = []
for g, v in zip(grads, vars):
if g is not None:
grad_hist_summary = tf.summary.histogram("{0}/grad/hist".format(v.name), g)
sparsity_summary = tf.summary.scalar("{0}/grad/sparsity".format(v.name), tf.nn.zero_fraction(g))
grad_summaries.append(grad_hist_summary)
grad_summaries.append(sparsity_summary)
grad_summaries_merged = tf.summary.merge(grad_summaries)
# Output directory for models and summaries
out_dir = dh.get_out_dir(OPTION, logger)
checkpoint_dir = os.path.abspath(os.path.join(out_dir, "checkpoints"))
best_checkpoint_dir = os.path.abspath(os.path.join(out_dir, "bestcheckpoints"))
# Summaries for loss
loss_summary = tf.summary.scalar("loss", abcnn.loss)
# Train summaries
train_summary_op = tf.summary.merge([loss_summary, grad_summaries_merged])
train_summary_dir = os.path.join(out_dir, "summaries", "train")
train_summary_writer = tf.summary.FileWriter(train_summary_dir, sess.graph)
# Validation summaries
validation_summary_op = tf.summary.merge([loss_summary])
validation_summary_dir = os.path.join(out_dir, "summaries", "validation")
validation_summary_writer = tf.summary.FileWriter(validation_summary_dir, sess.graph)
saver = tf.train.Saver(tf.global_variables(), max_to_keep=args.num_checkpoints)
best_saver = cm.BestCheckpointSaver(save_dir=best_checkpoint_dir, num_to_keep=3, maximize=True)
if OPTION == 'R':
# Load abcnn model
logger.info("Loading model...")
checkpoint_file = tf.train.latest_checkpoint(checkpoint_dir)
logger.info(checkpoint_file)
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph("{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
if OPTION == 'T':
if not os.path.exists(checkpoint_dir):
os.makedirs(checkpoint_dir)
sess.run(tf.global_variables_initializer())
sess.run(tf.local_variables_initializer())
# Embedding visualization config
config = projector.ProjectorConfig()
embedding_conf = config.embeddings.add()
embedding_conf.tensor_name = "embedding"
embedding_conf.metadata_path = args.metadata_file
projector.visualize_embeddings(train_summary_writer, config)
projector.visualize_embeddings(validation_summary_writer, config)
# Save the embedding visualization
saver.save(sess, os.path.join(out_dir, "embedding", "embedding.ckpt"))
current_step = sess.run(abcnn.global_step)
def train_step(x_batch_front, x_batch_behind, y_batch):
"""A single training step"""
feed_dict = {
abcnn.input_x_front: x_batch_front,
abcnn.input_x_behind: x_batch_behind,
abcnn.input_y: y_batch,
abcnn.dropout_keep_prob: args.dropout_rate,
abcnn.is_training: True
}
_, step, summaries, loss = sess.run(
[train_op, abcnn.global_step, train_summary_op, abcnn.loss], feed_dict)
logger.info("step {0}: loss {1:g}".format(step, loss))
train_summary_writer.add_summary(summaries, step)
def validation_step(x_batch_front, x_batch_behind, y_batch, writer=None):
"""Evaluates model on a validation set"""
batches_validation = dh.batch_iter(list(zip(x_batch_front, x_batch_behind, y_batch)),
args.batch_size, 1)
eval_counter, eval_loss = 0, 0.0
true_labels = []
predicted_scores = []
predicted_labels = []
for batch_validation in batches_validation:
x_batch_val_front, x_batch_val_behind, y_batch_val = zip(*batch_validation)
feed_dict = {
abcnn.input_x_front: x_batch_val_front,
abcnn.input_x_behind: x_batch_val_behind,
abcnn.input_y: y_batch_val,
abcnn.dropout_keep_prob: 1.0,
abcnn.is_training: False
}
step, summaries, scores, predictions, cur_loss = sess.run(
[abcnn.global_step, validation_summary_op,
abcnn.topKPreds, abcnn.predictions, abcnn.loss], feed_dict)
# Prepare for calculating metrics
for i in y_batch_val:
true_labels.append(np.argmax(i))
for j in scores[0]:
predicted_scores.append(j[0])
for k in predictions:
predicted_labels.append(k)
eval_loss = eval_loss + cur_loss
eval_counter = eval_counter + 1
if writer:
writer.add_summary(summaries, step)
eval_loss = float(eval_loss / eval_counter)
# Calculate Precision & Recall & F1
eval_acc = accuracy_score(y_true=np.array(true_labels), y_pred=np.array(predicted_labels))
eval_pre = precision_score(y_true=np.array(true_labels),
y_pred=np.array(predicted_labels), average='micro')
eval_rec = recall_score(y_true=np.array(true_labels),
y_pred=np.array(predicted_labels), average='micro')
eval_F1 = f1_score(y_true=np.array(true_labels),
y_pred=np.array(predicted_labels), average='micro')
# Calculate the average AUC
eval_auc = roc_auc_score(y_true=np.array(true_labels),
y_score=np.array(predicted_scores), average='micro')
return eval_loss, eval_acc, eval_pre, eval_rec, eval_F1, eval_auc
# Generate batches
batches_train = dh.batch_iter(
list(zip(x_train_front, x_train_behind, y_train)), args.batch_size, args.epochs)
num_batches_per_epoch = int((len(x_train_front) - 1) / args.batch_size) + 1
# Training loop. For each batch...
for batch_train in batches_train:
x_batch_front, x_batch_behind, y_batch = zip(*batch_train)
train_step(x_batch_front, x_batch_behind, y_batch)
current_step = tf.train.global_step(sess, abcnn.global_step)
if current_step % args.evaluate_steps == 0:
logger.info("\nEvaluation:")
eval_loss, eval_acc, eval_pre, eval_rec, eval_F1, eval_auc = \
validation_step(x_validation_front, x_validation_behind,
y_validation, writer=validation_summary_writer)
logger.info("All Validation set: Loss {0:g} | Acc {1:g} | Precision {2:g} | "
"Recall {3:g} | F1 {4:g} | AUC {5:g}"
.format(eval_loss, eval_acc, eval_pre, eval_rec, eval_F1, eval_auc))
best_saver.handle(eval_acc, sess, current_step)
if current_step % args.checkpoint_steps == 0:
checkpoint_prefix = os.path.join(checkpoint_dir, "model")
path = saver.save(sess, checkpoint_prefix, global_step=current_step)
logger.info("Saved model checkpoint to {0}\n".format(path))
if current_step % num_batches_per_epoch == 0:
current_epoch = current_step // num_batches_per_epoch
logger.info("Epoch {0} has finished!".format(current_epoch))
logger.info("All Done.")
def validation_step(x_validation, y_validation, writer=None):
"""Evaluates model on a validation set"""
batches_validation = dh.batch_iter(
list(zip(x_validation, y_validation)), FLAGS.batch_size, 1)
# Predict classes by threshold or topk ('ts': threshold; 'tk': topk)
eval_counter, eval_loss, eval_rec_ts, eval_pre_ts, eval_F_ts = 0, 0.0, 0.0, 0.0, 0.0
eval_rec_tk = [0.0] * FLAGS.top_num
eval_pre_tk = [0.0] * FLAGS.top_num
eval_F_tk = [0.0] * FLAGS.top_num
for batch_validation in batches_validation:
x_batch_validation, y_batch_validation = zip(
*batch_validation)
feed_dict = {
rcnn.input_x: x_batch_validation,
rcnn.input_y: y_batch_validation,
rcnn.dropout_keep_prob: 1.0,
rcnn.is_training: False
}
step, summaries, scores, cur_loss = sess.run([
rcnn.global_step, validation_summary_op, rcnn.scores,
rcnn.loss
], feed_dict)
# Predict by threshold
predicted_labels_threshold, predicted_values_threshold = \
dh.get_label_using_scores_by_threshold(scores=scores, threshold=FLAGS.threshold)
cur_rec_ts, cur_pre_ts, cur_F_ts = 0.0, 0.0, 0.0
for index, predicted_label_threshold in enumerate(
predicted_labels_threshold):
rec_inc_ts, pre_inc_ts = dh.cal_metric(
predicted_label_threshold,
y_batch_validation[index])
cur_rec_ts, cur_pre_ts = cur_rec_ts + rec_inc_ts, cur_pre_ts + pre_inc_ts
cur_rec_ts = cur_rec_ts / len(y_batch_validation)
cur_pre_ts = cur_pre_ts / len(y_batch_validation)
cur_F_ts = dh.cal_F(cur_rec_ts, cur_pre_ts)
eval_rec_ts, eval_pre_ts = eval_rec_ts + cur_rec_ts, eval_pre_ts + cur_pre_ts
# Predict by topK
topK_predicted_labels = []
for top_num in range(FLAGS.top_num):
predicted_labels_topk, predicted_values_topk = \
dh.get_label_using_scores_by_topk(scores=scores, top_num=top_num+1)
topK_predicted_labels.append(predicted_labels_topk)
cur_rec_tk = [0.0] * FLAGS.top_num
cur_pre_tk = [0.0] * FLAGS.top_num
cur_F_tk = [0.0] * FLAGS.top_num
for top_num, predicted_labels_topK in enumerate(
topK_predicted_labels):
for index, predicted_label_topK in enumerate(
predicted_labels_topK):
rec_inc_tk, pre_inc_tk = dh.cal_metric(
predicted_label_topK,
y_batch_validation[index])
cur_rec_tk[top_num], cur_pre_tk[top_num] = \
cur_rec_tk[top_num] + rec_inc_tk, cur_pre_tk[top_num] + pre_inc_tk
cur_rec_tk[top_num] = cur_rec_tk[top_num] / len(
y_batch_validation)
cur_pre_tk[top_num] = cur_pre_tk[top_num] / len(
y_batch_validation)
cur_F_tk[top_num] = dh.cal_F(cur_rec_tk[top_num],
cur_pre_tk[top_num])
eval_rec_tk[top_num], eval_pre_tk[top_num] = \
eval_rec_tk[top_num] + cur_rec_tk[top_num], eval_pre_tk[top_num] + cur_pre_tk[top_num]
eval_loss = eval_loss + cur_loss
eval_counter = eval_counter + 1
if writer:
writer.add_summary(summaries, step)
eval_loss = float(eval_loss / eval_counter)
eval_rec_ts = float(eval_rec_ts / eval_counter)
eval_pre_ts = float(eval_pre_ts / eval_counter)
eval_F_ts = dh.cal_F(eval_rec_ts, eval_pre_ts)
for top_num in range(FLAGS.top_num):
eval_rec_tk[top_num] = float(eval_rec_tk[top_num] /
eval_counter)
eval_pre_tk[top_num] = float(eval_pre_tk[top_num] /
eval_counter)
eval_F_tk[top_num] = dh.cal_F(eval_rec_tk[top_num],
eval_pre_tk[top_num])
return eval_loss, eval_rec_ts, eval_pre_ts, eval_F_ts, eval_rec_tk, eval_pre_tk, eval_F_tk
def train_ann():
"""Training ANN model."""
# Load sentences, labels, and training parameters
logger.info('✔︎ Loading data...')
logger.info('✔︎ Training data processing...')
train_data = dh.load_data_and_labels(FLAGS.training_data_file,
FLAGS.embedding_dim)
logger.info('✔︎ Validation data processing...')
validation_data = dh.load_data_and_labels(FLAGS.validation_data_file,
FLAGS.embedding_dim)
logger.info('Recommended padding Sequence length is: {0}'.format(
FLAGS.pad_seq_len))
logger.info('✔︎ Training data padding...')
x_train_front, x_train_behind, y_train = dh.pad_data(
train_data, FLAGS.pad_seq_len)
logger.info('✔︎ Validation data padding...')
x_validation_front, x_validation_behind, y_validation = dh.pad_data(
validation_data, FLAGS.pad_seq_len)
# Build vocabulary
VOCAB_SIZE = dh.load_vocab_size(FLAGS.embedding_dim)
pretrained_word2vec_matrix = dh.load_word2vec_matrix(
VOCAB_SIZE, FLAGS.embedding_dim)
# Build a graph and ann object
with tf.Graph().as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=FLAGS.allow_soft_placement,
log_device_placement=FLAGS.log_device_placement)
session_conf.gpu_options.allow_growth = FLAGS.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
ann = TextANN(sequence_length=FLAGS.pad_seq_len,
num_classes=y_train.shape[1],
vocab_size=VOCAB_SIZE,
fc_hidden_size=FLAGS.fc_hidden_size,
embedding_size=FLAGS.embedding_dim,
embedding_type=FLAGS.embedding_type,
l2_reg_lambda=FLAGS.l2_reg_lambda,
pretrained_embedding=pretrained_word2vec_matrix)
# Define training procedure
with tf.control_dependencies(
tf.get_collection(tf.GraphKeys.UPDATE_OPS)):
learning_rate = tf.train.exponential_decay(
learning_rate=FLAGS.learning_rate,
global_step=ann.global_step,
decay_steps=FLAGS.decay_steps,
decay_rate=FLAGS.decay_rate,
staircase=True)
optimizer = tf.train.AdamOptimizer(learning_rate)
grads, vars = zip(*optimizer.compute_gradients(ann.loss))
grads, _ = tf.clip_by_global_norm(grads,
clip_norm=FLAGS.norm_ratio)
train_op = optimizer.apply_gradients(
zip(grads, vars),
global_step=ann.global_step,
name="train_op")
# Keep track of gradient values and sparsity (optional)
grad_summaries = []
for g, v in zip(grads, vars):
if g is not None:
grad_hist_summary = tf.summary.histogram(
"{0}/grad/hist".format(v.name), g)
sparsity_summary = tf.summary.scalar(
"{0}/grad/sparsity".format(v.name),
tf.nn.zero_fraction(g))
grad_summaries.append(grad_hist_summary)
grad_summaries.append(sparsity_summary)
grad_summaries_merged = tf.summary.merge(grad_summaries)
# Output directory for models and summaries
if FLAGS.train_or_restore == 'R':
MODEL = input(
"☛ Please input the checkpoints model you want to restore, "
"it should be like(1490175368): "
) # The model you want to restore
while not (MODEL.isdigit() and len(MODEL) == 10):
MODEL = input(
'✘ The format of your input is illegal, please re-input: '
)
logger.info(
'✔︎ The format of your input is legal, now loading to next step...'
)
checkpoint_dir = 'runs/' + MODEL + '/checkpoints/'
out_dir = os.path.abspath(
os.path.join(os.path.curdir, "runs", MODEL))
logger.info("✔︎ Writing to {0}\n".format(out_dir))
else:
timestamp = str(int(time.time()))
out_dir = os.path.abspath(
os.path.join(os.path.curdir, "runs", timestamp))
logger.info("✔︎ Writing to {0}\n".format(out_dir))
# Summaries for loss and accuracy
loss_summary = tf.summary.scalar("loss", ann.loss)
acc_summary = tf.summary.scalar("accuracy", ann.accuracy)
# Train summaries
train_summary_op = tf.summary.merge(
[loss_summary, acc_summary, grad_summaries_merged])
train_summary_dir = os.path.join(out_dir, "summaries", "train")
train_summary_writer = tf.summary.FileWriter(
train_summary_dir, sess.graph)
# Validation summaries
validation_summary_op = tf.summary.merge(
[loss_summary, acc_summary])
validation_summary_dir = os.path.join(out_dir, "summaries",
"validation")
validation_summary_writer = tf.summary.FileWriter(
validation_summary_dir, sess.graph)
saver = tf.train.Saver(tf.global_variables(),
max_to_keep=FLAGS.num_checkpoints)
if FLAGS.train_or_restore == 'R':
# Load ann model
logger.info("✔ Loading model...")
checkpoint_file = tf.train.latest_checkpoint(checkpoint_dir)
logger.info(checkpoint_file)
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph(
"{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
else:
checkpoint_dir = os.path.abspath(
os.path.join(out_dir, "checkpoints"))
if not os.path.exists(checkpoint_dir):
os.makedirs(checkpoint_dir)
sess.run(tf.global_variables_initializer())
sess.run(tf.local_variables_initializer())
# Embedding visualization config
config = projector.ProjectorConfig()
embedding_conf = config.embeddings.add()
embedding_conf.tensor_name = 'embedding'
embedding_conf.metadata_path = FLAGS.metadata_file
projector.visualize_embeddings(train_summary_writer, config)
projector.visualize_embeddings(validation_summary_writer,
config)
# Save the embedding visualization
saver.save(
sess, os.path.join(out_dir, 'embedding', 'embedding.ckpt'))
current_step = sess.run(ann.global_step)
def train_step(x_batch_front, x_batch_behind, y_batch):
"""A single training step"""
feed_dict = {
ann.input_x_front: x_batch_front,
ann.input_x_behind: x_batch_behind,
ann.input_y: y_batch,
ann.dropout_keep_prob: FLAGS.dropout_keep_prob,
ann.is_training: True
}
_, step, summaries, loss, accuracy = sess.run([
train_op, ann.global_step, train_summary_op, ann.loss,
ann.accuracy
], feed_dict)
logger.info("step {0}: loss {1:g}, acc {2:g}".format(
step, loss, accuracy))
train_summary_writer.add_summary(summaries, step)
def validation_step(x_batch_front,
x_batch_behind,
y_batch,
writer=None):
"""Evaluates model on a validation set"""
feed_dict = {
ann.input_x_front: x_batch_front,
ann.input_x_behind: x_batch_behind,
ann.input_y: y_batch,
ann.dropout_keep_prob: 1.0,
ann.is_training: False
}
step, summaries, loss, accuracy, recall, precision, f1, auc = sess.run(
[
ann.global_step, validation_summary_op, ann.loss,
ann.accuracy, ann.recall, ann.precision, ann.F1,
ann.AUC
], feed_dict)
logger.info(
"step {0}: loss {1:g}, acc {2:g}, recall {3:g}, precision {4:g}, f1 {5:g}, AUC {6}"
.format(step, loss, accuracy, recall, precision, f1, auc))
if writer:
writer.add_summary(summaries, step)
# Generate batches
batches = dh.batch_iter(
list(zip(x_train_front, x_train_behind, y_train)),
FLAGS.batch_size, FLAGS.num_epochs)
num_batches_per_epoch = int(
(len(x_train_front) - 1) / FLAGS.batch_size) + 1
# Training loop. For each batch...
for batch in batches:
x_batch_front, x_batch_behind, y_batch = zip(*batch)
train_step(x_batch_front, x_batch_behind, y_batch)
current_step = tf.train.global_step(sess, ann.global_step)
if current_step % FLAGS.evaluate_every == 0:
logger.info("\nEvaluation:")
validation_step(x_validation_front,
x_validation_behind,
y_validation,
writer=validation_summary_writer)
if current_step % FLAGS.checkpoint_every == 0:
checkpoint_prefix = os.path.join(checkpoint_dir, "model")
path = saver.save(sess,
checkpoint_prefix,
global_step=current_step)
logger.info(
"✔︎ Saved model checkpoint to {0}\n".format(path))
if current_step % num_batches_per_epoch == 0:
current_epoch = current_step // num_batches_per_epoch
logger.info(
"✔︎ Epoch {0} has finished!".format(current_epoch))
logger.info("✔︎ Done.")
def visualize():
"""Visualize HARNN model."""
# Load data
logger.info("Loading data...")
logger.info("Data processing...")
test_data = dh.load_data_and_labels(args.test_file,
args.num_classes_list,
args.total_classes,
args.word2vec_file,
data_aug_flag=False)
logger.info("Data padding...")
x_test, y_test, y_test_tuple = dh.pad_data(test_data, args.pad_seq_len)
x_test_content, y_test_labels = test_data.abstract_content, test_data.labels
# Load harnn model
OPTION = dh._option(pattern=1)
if OPTION == 'B':
logger.info("Loading best model...")
checkpoint_file = cm.get_best_checkpoint(BEST_CPT_DIR,
select_maximum_value=True)
else:
logger.info("Loading latest model...")
checkpoint_file = tf.train.latest_checkpoint(CPT_DIR)
logger.info(checkpoint_file)
graph = tf.Graph()
with graph.as_default():
session_conf = tf.ConfigProto(
allow_soft_placement=args.allow_soft_placement,
log_device_placement=args.log_device_placement)
session_conf.gpu_options.allow_growth = args.gpu_options_allow_growth
sess = tf.Session(config=session_conf)
with sess.as_default():
# Load the saved meta graph and restore variables
saver = tf.train.import_meta_graph(
"{0}.meta".format(checkpoint_file))
saver.restore(sess, checkpoint_file)
# Get the placeholders from the graph by name
input_x = graph.get_operation_by_name("input_x").outputs[0]
input_y_first = graph.get_operation_by_name(
"input_y_first").outputs[0]
input_y_second = graph.get_operation_by_name(
"input_y_second").outputs[0]
input_y_third = graph.get_operation_by_name(
"input_y_third").outputs[0]
input_y_fourth = graph.get_operation_by_name(
"input_y_fourth").outputs[0]
input_y = graph.get_operation_by_name("input_y").outputs[0]
dropout_keep_prob = graph.get_operation_by_name(
"dropout_keep_prob").outputs[0]
alpha = graph.get_operation_by_name("alpha").outputs[0]
is_training = graph.get_operation_by_name("is_training").outputs[0]
# Tensors we want to evaluate
first_visual = graph.get_operation_by_name(
"first-output/visual").outputs[0]
second_visual = graph.get_operation_by_name(
"second-output/visual").outputs[0]
third_visual = graph.get_operation_by_name(
"third-output/visual").outputs[0]
fourth_visual = graph.get_operation_by_name(
"fourth-output/visual").outputs[0]
scores = graph.get_operation_by_name("output/scores").outputs[0]
# Split the output nodes name by '|' if you have several output nodes
output_node_names = "first-output/visual|second-output/visual|third-output/visual|fourth-output/visual|output/scores"
# Save the .pb model file
output_graph_def = tf.graph_util.convert_variables_to_constants(
sess, sess.graph_def, output_node_names.split("|"))
tf.train.write_graph(output_graph_def,
"graph",
"graph-harnn-{0}.pb".format(MODEL),
as_text=False)
# Generate batches for one epoch
batches = dh.batch_iter(list(
zip(x_test, y_test, y_test_tuple, x_test_content,
y_test_labels)),
args.batch_size,
1,
shuffle=False)
for batch_test in batches:
x_batch_test, y_batch_test, y_batch_test_tuple, \
x_batch_test_content, y_batch_test_labels = zip(*batch_test)
y_batch_test_first = [i[0] for i in y_batch_test_tuple]
y_batch_test_second = [j[1] for j in y_batch_test_tuple]
y_batch_test_third = [k[2] for k in y_batch_test_tuple]
y_batch_test_fourth = [t[3] for t in y_batch_test_tuple]
feed_dict = {
input_x: x_batch_test,
input_y_first: y_batch_test_first,
input_y_second: y_batch_test_second,
input_y_third: y_batch_test_third,
input_y_fourth: y_batch_test_fourth,
input_y: y_batch_test,
dropout_keep_prob: 1.0,
alpha: args.alpha,
is_training: False
}
batch_first_visual, batch_second_visual, batch_third_visual, batch_fourth_visual = \
sess.run([first_visual, second_visual, third_visual, fourth_visual], feed_dict)
seq_len = len(x_batch_test_content[0])
pad_len = len(batch_first_visual[0])
length = (pad_len if seq_len >= pad_len else seq_len)
# print(seq_len, pad_len, length)
final_first_visual = normalization(
batch_first_visual[0].tolist(), length)
final_second_visual = normalization(
batch_second_visual[0].tolist(), length)
final_third_visual = normalization(
batch_third_visual[0].tolist(), length)
final_fourth_visual = normalization(
batch_fourth_visual[0].tolist(), length)
visual_list = [
final_first_visual, final_second_visual,
final_third_visual, final_fourth_visual
]
print(visual_list)
f = open('attention.html', 'w')
f.write(
'<html style="margin:0;padding:0;"><body style="margin:0;padding:0;">\n'
)
f.write('<div style="margin:25px;">\n')
for k in range(len(visual_list)):
f.write('<p style="margin:10px;">\n')
for i in range(seq_len):
alpha = "{:.2f}".format(visual_list[k][i])
word = x_batch_test_content[0][i]
f.write(
'\t<span style="margin-left:3px;background-color:rgba(255,0,0,{0})">{1}</span>\n'
.format(alpha, word))
f.write('</p>\n')
f.write('</div>\n')
f.write('</body></html>')
f.close()
logger.info("Done.")
