def generate_model(self):
print("Gathering and processing tweets...")
# Shuffle list of username-label tuples
tuple_list = usermapping.data_tuples.items()
# Split and grab tweets for users
results = utils.flatten([ self.fetch_data(t)
for t in tuple_list ])
# TODO: Cross-validation generation
trn_ratio = int(len(results) * 0.85)
shuffle(results)
print(len(results))
print(trn_ratio)
train = results[:trn_ratio]
test = results[trn_ratio:]
# Instantiate and train classifier
print("Training...")
cl = NaiveBayesClassifier(train)
cl.train()
# Save model
print("Saving model...")
utils.save_model(cl)
# Classify test
print("Testing...")
print("Accuracy: {0}".format(cl.accuracy(test)))
return cl
def main(model='lenet', num_epochs=500, min_epochs=100, improve_epochs=50,
subset_sizes=None, validation_intervals=1,
batchsize=500,
sample_chooser=None, refine=False, out_path=None,
csv_path=None, indices_out_path=None):
if subset_sizes is None:
subset_sizes = [500, 1000, 1500, 2000, 2500, 3000, 3500, 4000, 4500, 5000]
subset_sizes = cmdline_helpers.coerce_num_list_parameter(subset_sizes,
num_type=int, name='subset_sizes')
num_epochs = cmdline_helpers.coerce_num_list_parameter(num_epochs, N=len(subset_sizes),
num_type=int, name='num_epochs')
min_epochs = cmdline_helpers.coerce_num_list_parameter(min_epochs, N=len(subset_sizes),
num_type=int, name='min_epochs')
improve_epochs = cmdline_helpers.coerce_num_list_parameter(improve_epochs, N=len(subset_sizes),
num_type=int, name='improve_epochs')
validation_intervals = cmdline_helpers.coerce_num_list_parameter(validation_intervals, N=len(subset_sizes),
num_type=int, name='validation_intervals')
N_train, N_val, N_test = mnist_dataset.train_val_test_size()
builder = mnist_architecture.network_builder(model)
mnist = mnist_dataset.MNISTTrainValTest()
trainer, indices_labelled_history, validation_error_history, test_error_history = \
active_learning.active_learning_image_classifier(sample_chooser=sample_chooser, model_builder=builder, N_train=N_train,
batchsize=batchsize,
refine=refine, datasets_fn=mnist.datasets, subset_sizes=subset_sizes,
num_epochs=num_epochs,
min_epochs=min_epochs, improve_epochs=improve_epochs,
validation_intervals=validation_intervals,
batch_xform_fn=mnist_dataset.xform_mnist_batch,
n_train_repetitions_in_case_of_failure=3)
print('Results:')
print('N-train\t\tErr')
for labelled_indices, err in zip(indices_labelled_history, test_error_history):
print('{0}\t\t{1:.2f}%'.format(labelled_indices.shape[0], err * 100.0))
if csv_path is not None:
writer = csv.writer(open(csv_path, 'wb'))
writer.writerow(['# samples', 'Error %'])
for labelled_indices, err in zip(indices_labelled_history, test_error_history):
writer.writerow([labelled_indices.shape[0], err * 100.0])
if out_path is not None:
print('Saving model to {0} ...'.format(out_path))
utils.save_model(out_path, trainer.network)
if indices_out_path is not None:
np.save(indices_out_path, indices_labelled_history[-1])
def pretrain(self, data,
epoch=[3000, 3000],
v_damping=[0.3, 1e-10],
w_init=[0.01, 0.1],
lr=[0.001, 0.002],
batch_size=64,
lr_schedule=trainers.lr_slow_start,
rbml1=None, rbml2=None,
rbml1_path=None, rbml2_path=None,
checkpoint=None):
if rbml1 is None:
rbml1 = ShapeRBM(self.num_v, self.num_h1, self.patches,
model_stat=trainers.CD_model(),
data=data,
v_damping=v_damping[0],
w_init=w_init[0],
double_up=True)
rbml1.train(lr=lr[0], epoch=epoch[0], batch_size=batch_size,
data=data, lr_schedule=lr_schedule,
checkpoint=checkpoint)
if rbml1_path:
utils.save_model(rbml1, rbml1_path)
self.rbml1 = rbml1
if rbml2 is None:
data_l2 = rbml1.expectation(1, [data, None])
rbml2 = ShapeRBM(self.num_h1, self.num_h2,
patches=[slice(None, None, None)],
model_stat=trainers.CD_model(),
data=data_l2,
v_damping=v_damping[1],
w_init=w_init[1],
double_down=True)
rbml2.train(lr=lr[1], epoch=epoch[1], batch_size=batch_size,
data=data_l2, lr_schedule=lr_schedule,
checkpoint=checkpoint)
if rbml2_path:
utils.save_model(rbml2, rbml2_path)
self.rbml2 = rbml2
# Combine parameters to full dbm
self.connections[0].W = rbml1.connections[0].W.copy()
self.connections[1].W = rbml2.connections[0].W.copy()
self.layers[0].bias = rbml1.layers[0].bias.copy()
self.layers[1].bias = rbml1.layers[1].bias + rbml2.layers[0].bias
self.layers[2].bias = rbml2.layers[1].bias.copy()
return
def evaluate(model,current_epoch, additional_test_length):
# Evaluate the model
logging.info('Evaluate')
test_x = test_data['x']
test_y = test_data['y']
test_mask = test_data['mask']
lengths = test_data['lengths']
logging.info('-----------Evaluate Normal:{},{},{}-------------------'.format(MODEL_TYPE, DATA_TYPE, N_HIDDEN))
do_evaluate(test_x, test_y, test_mask, lengths, test_data['t'] if USE_TIME_INPUT else None, test_batch=TEST_BATCH)
# Evaluate the model on short data
if additional_test_length > 0:
logging.info('-----------Evaluate Additional---------------')
test_x, test_y, test_mask, lengths, test_t = get_short_test_data(additional_test_length)
do_evaluate(test_x, test_y, test_mask, lengths, test_t, test_batch=TEST_BATCH)
logging.info('-----------Evaluate End----------------------')
if not DEBUG:
utils.save_model('{}-{}-{}-{}'.format(MODEL_TYPE,current_epoch, DATA_TYPE,N_HIDDEN), str(datetime.datetime.now()), model,'_new')
def train_lstm(model, input_path, validation_path, save_dir, step=3, batch_size=1024,
iters=1000, save_every=1):
_, seqlen, _ = model.input_shape
train_gen = generate_arrays_from_file(input_path, seqlen=seqlen,
step=step, batch_size=batch_size)
samples, seed = train_gen.next()
logger.info('samples per epoch %s' % samples)
print 'samples per epoch %s' % samples
last_epoch = model.metadata.get('epoch', 0)
for epoch in range(last_epoch + 1, last_epoch + iters + 1):
val_gen = generate_arrays_from_file(
validation_path, seqlen=seqlen, step=step, batch_size=batch_size)
val_samples, _ = val_gen.next()
hist = model.fit_generator(
train_gen,
validation_data=val_gen,
validation_steps=val_samples // batch_size,
steps_per_epoch=samples // batch_size,
epochs=1)
val_loss = hist.history.get('val_loss', [-1])[0]
loss = hist.history['loss'][0]
model.metadata['loss'].append(loss)
model.metadata['val_loss'].append(val_loss)
model.metadata['epoch'] = epoch
message = 'loss = %.4f val_loss = %.4f' % (loss, val_loss)
print message
logger.info(message)
print 'done fitting epoch %s' % epoch
if epoch % save_every == 0:
save_path = os.path.join(save_dir, ('epoch_%s' % ('%s' % epoch).zfill(5)))
logger.info("done fitting epoch %s Now saving mode to %s" % (epoch, save_path))
save_model(model, save_path)
logger.info("saved model, now generating a sample")
generate_and_print(model, seed, 0.5, 1000)
def main(model='lenet', num_epochs=500, min_epochs=200, improve_epochs=250, batchsize=500,
training_subset=None, aug_factor=1, out_path=None):
# Load the dataset
print("Loading data...")
mnist = mnist_dataset.MNISTTrainValTest()
# Generate the indices of the subset of the training set
training_subset_indices = None
if training_subset is not None:
training_subset_indices = mnist.balanced_train_subset_indices(training_subset)
# Get the train, validation and test sets
train_ds, val_ds, test_ds = mnist.datasets(training_subset_indices)
# Get network builder function for named model
builder = mnist_architecture.network_builder(model)
# Build the image classifier for the given model builder
clf = image_classifier.ImageClassifier.for_model(builder)
# Set verbosity
clf.trainer.report(verbosity=trainer.VERBOSITY_EPOCH)
# Set data transformation function
clf.trainer.data_xform_fn(batch_xform_fn=mnist_dataset.xform_mnist_batch)
# Set training length
clf.trainer.train_for(num_epochs=num_epochs, min_epochs=min_epochs, val_improve_num_epochs=improve_epochs,
val_improve_epochs_factor=0)
# Train
clf.trainer.train(train_ds, val_ds, test_ds, batchsize=batchsize)
if out_path is not None:
print('Saving model to {0} ...'.format(out_path))
utils.save_model(out_path, clf.network)
ngrams = generate_ngram(word_list, 3)
for d in ngrams:
root.add(d)
print('------> 插入成功')
if __name__ == "__main__":
root_name = basedir + "/data/root.pkl"
stopwords = get_stopwords()
if os.path.exists(root_name):
root = load_model(root_name)
else:
dict_name = basedir + '/data/dict.txt'
word_freq = load_dictionary(dict_name)
root = TrieNode('*', word_freq)
save_model(root, root_name)
# 加载新的文章
filename = 'data/demo.txt'
data = load_data(filename, stopwords)
# 将新的文章插入到Root中
load_data_2_root(data)
# 定义取TOP5个
topN = 5
result, add_word = root.find_word(topN)
# 如果想要调试和选择其他的阈值，可以print result来调整
# print("\n----\n", result)
print("\n----\n", '增加了 %d 个新词, 词语和得分分别为: \n' % len(add_word))
print('#############################')
for word, score in add_word.items():
matplotlib.use('Agg')
import matplotlib.pyplot as plt
import utils
train_csv_path = sys.argv[1]
model_path = sys.argv[2]
trainX, trainY = utils.load_train_data(train_csv_path)
print(f'\033[32;1mtrainX: {trainX.shape}, trainY: {trainY.shape}\033[0m')
if os.path.exists(model_path):
model = utils.load_model(model_path)
else:
model = PCA(n_components=2).fit(trainX)
utils.save_model(model_path, model)
trainX2 = model.transform(trainX)
model = PCA(n_components=10).fit(trainX)
print('%.3f ' * len(model.explained_variance_) %
tuple(model.explained_variance_),
'%.3f ' * len(model.explained_variance_ratio_) %
tuple(model.explained_variance_ratio_),
sep='\n')
for c in np.unique(trainY):
plt.scatter(trainX2[trainY == c, 0],
trainX2[trainY == c, 1],
s=0.1,
label=str(c))
plt.legend()
def train(X_train,X_dev,X_test):
# load data sets
train_sentences = X_train
dev_sentences = X_dev
test_sentences = X_test
train_sentences_loc = load_sentences(FLAGS.train_file_loc, FLAGS.lower, FLAGS.zeros)
dev_sentences_loc = load_sentences(FLAGS.dev_file_loc, FLAGS.lower, FLAGS.zeros)
test_sentences_loc = load_sentences(FLAGS.test_file_loc, FLAGS.lower, FLAGS.zeros)
train_sentences_org = load_sentences(FLAGS.train_file_org, FLAGS.lower, FLAGS.zeros)
dev_sentences_org = load_sentences(FLAGS.dev_file_org, FLAGS.lower, FLAGS.zeros)
test_sentences_org = load_sentences(FLAGS.test_file_org, FLAGS.lower, FLAGS.zeros)
train_sentences_per = load_sentences(FLAGS.train_file_per, FLAGS.lower, FLAGS.zeros)
dev_sentences_per = load_sentences(FLAGS.dev_file_per, FLAGS.lower, FLAGS.zeros)
test_sentences_per = load_sentences(FLAGS.test_file_per, FLAGS.lower, FLAGS.zeros)
# Use selected tagging scheme (IOB / IOBES)
update_tag_scheme(train_sentences, FLAGS.tag_schema)
update_tag_scheme(test_sentences, FLAGS.tag_schema)
update_tag_scheme(train_sentences_loc, FLAGS.tag_schema)
update_tag_scheme(test_sentences_loc, FLAGS.tag_schema)
update_tag_scheme(train_sentences_per, FLAGS.tag_schema)
update_tag_scheme(test_sentences_per, FLAGS.tag_schema)
update_tag_scheme(train_sentences_org, FLAGS.tag_schema)
update_tag_scheme(test_sentences_org, FLAGS.tag_schema)
# create maps if not exist
if not os.path.isfile(FLAGS.map_file):
# create dictionary for word
if FLAGS.pre_emb:
dico_chars_train = char_mapping(train_sentences, FLAGS.lower)[0]
dico_chars, char_to_id, id_to_char = augment_with_pretrained(
dico_chars_train.copy(),
FLAGS.emb_file,
list(itertools.chain.from_iterable(
[[w[0] for w in s] for s in test_sentences])
)
)
dico_chars_train_loc = char_mapping(train_sentences_loc, FLAGS.lower)[0]
dico_chars_loc, char_to_id_loc, id_to_char_loc = augment_with_pretrained(
dico_chars_train_loc.copy(),
FLAGS.emb_file,
list(itertools.chain.from_iterable(
[[w[0] for w in s] for s in test_sentences_loc])
)
)
dico_chars_train_per = char_mapping(train_sentences_per, FLAGS.lower)[0]
dico_chars_per, char_to_id_per, id_to_char_per = augment_with_pretrained(
dico_chars_train_per.copy(),
FLAGS.emb_file,
list(itertools.chain.from_iterable(
[[w[0] for w in s] for s in test_sentences_per])
)
)
dico_chars_train_org = char_mapping(train_sentences_org, FLAGS.lower)[0]
dico_chars_org, char_to_id_org, id_to_char_org = augment_with_pretrained(
dico_chars_train_org.copy(),
FLAGS.emb_file,
list(itertools.chain.from_iterable(
[[w[0] for w in s] for s in test_sentences_org])
)
)
else:
_c, char_to_id, id_to_char = char_mapping(train_sentences, FLAGS.lower)
_c_loc, char_to_id_loc, id_to_char_loc = char_mapping(train_sentences_loc, FLAGS.lower)
_c_per, char_to_id_per, id_to_char_per = char_mapping(train_sentences_per, FLAGS.lower)
_c_org, char_to_id_org, id_to_char_org = char_mapping(train_sentences_org, FLAGS.lower)
# Create a dictionary and a mapping for tags
_t, tag_to_id, id_to_tag = tag_mapping(train_sentences)
_t_loc, tag_to_id_loc, id_to_tag_loc = tag_mapping(train_sentences_loc)
_t_per, tag_to_id_per, id_to_tag_per = tag_mapping(train_sentences_per)
_t_org, tag_to_id_org, id_to_tag_org = tag_mapping(train_sentences_org)
with open(FLAGS.map_file, "wb") as f:
pickle.dump([char_to_id, id_to_char, tag_to_id, id_to_tag,char_to_id_loc, id_to_char_loc, tag_to_id_loc, id_to_tag_loc,char_to_id_per, id_to_char_per, tag_to_id_per, id_to_tag_per,char_to_id_org, id_to_char_org, tag_to_id_org, id_to_tag_org], f)
else:
with open(FLAGS.map_file, "rb") as f:
char_to_id, id_to_char, tag_to_id, id_to_tag,char_to_id_loc, id_to_char_loc, tag_to_id_loc, id_to_tag_loc,char_to_id_per, id_to_char_per, tag_to_id_per, id_to_tag_per,char_to_id_org, id_to_char_org, tag_to_id_org, id_to_tag_org = pickle.load(f)
# prepare data, get a collection of list containing index
train_data = prepare_dataset(
train_sentences, char_to_id, tag_to_id, FLAGS.lower
)
dev_data = prepare_dataset(
dev_sentences, char_to_id, tag_to_id, FLAGS.lower
)
test_data = prepare_dataset(
test_sentences, char_to_id, tag_to_id, FLAGS.lower
)
print("%i / %i / %i sentences in train / dev / test." % (
len(train_data),len(dev_data), len(test_data)))
train_data_loc = prepare_dataset_ner(
train_sentences_loc, char_to_id_loc, tag_to_id_loc, FLAGS.lower
)
dev_data_loc = prepare_dataset_ner(
dev_sentences_loc, char_to_id_loc, tag_to_id_loc, FLAGS.lower
)
test_data_loc = prepare_dataset_ner(
test_sentences_loc, char_to_id_loc, tag_to_id_loc, FLAGS.lower
)
print("%i / %i / %i sentences_loc in train / dev / test." % (
len(train_data_loc), len(dev_data_loc), len(test_data_loc)))
train_data_per = prepare_dataset_ner(
train_sentences_per, char_to_id_per, tag_to_id_per, FLAGS.lower
)
dev_data_per = prepare_dataset_ner(
dev_sentences_per, char_to_id_per, tag_to_id_per, FLAGS.lower
)
test_data_per = prepare_dataset_ner(
test_sentences_per, char_to_id_per, tag_to_id_per, FLAGS.lower
)
print("%i / %i / %i sentences_per in train / dev / test." % (
len(train_data_per), len(dev_data_per), len(test_data_per)))
train_data_org = prepare_dataset_ner(
train_sentences_org, char_to_id_org, tag_to_id_org, FLAGS.lower
)
dev_data_org = prepare_dataset_ner(
dev_sentences_org, char_to_id_org, tag_to_id_org, FLAGS.lower
)
test_data_org = prepare_dataset_ner(
test_sentences_org, char_to_id_org, tag_to_id_org, FLAGS.lower
)
print("%i / %i / %i sentences_org in train / dev / test." % (
len(train_data_org), len(dev_data_org), len(test_data_org)))
train_manager = BatchManager(train_data, FLAGS.batch_size)
dev_manager = BatchManager(dev_data, 100)
test_manager = BatchManager(test_data, 100)
train_manager_loc = BatchManager(train_data_loc, FLAGS.batch_size)
train_manager_per = BatchManager(train_data_per, FLAGS.batch_size)
train_manager_org = BatchManager(train_data_org, FLAGS.batch_size)
# make path for store log and model if not exist
make_path(FLAGS)
if os.path.isfile(FLAGS.config_file):
config = load_config(FLAGS.config_file)
else:
config = config_model(char_to_id, tag_to_id,char_to_id_loc, tag_to_id_loc,char_to_id_per, tag_to_id_per,char_to_id_org, tag_to_id_org)
save_config(config, FLAGS.config_file)
make_path(FLAGS)
log_path = os.path.join("log", FLAGS.log_file)
logger = get_logger(log_path)
print_config(config, logger)
# limit GPU memory
tf_config = tf.ConfigProto()
tf_config.gpu_options.allow_growth = True
steps_per_epoch = train_manager.len_data
steps_per_epoch_loc = train_manager_loc.len_data
steps_per_epoch_per = train_manager_per.len_data
steps_per_epoch_org = train_manager_org.len_data
model = create_model(Model, FLAGS.ckpt_path, load_word2vec, config, id_to_char, id_to_char_loc, id_to_char_per, id_to_char_org, logger)
with tf.Session(config=tf_config, graph = model.graph ) as sess:
sess.run(tf.global_variables_initializer())
if config["pre_emb"]:
emb_weights = sess.run(model.char_lookup.read_value())
emb_weights_ner = sess.run(model.char_lookup.read_value())
emb_weights, emb_weights_ner = load_word2vec(config["emb_file"], id_to_char, id_to_char_loc,id_to_char_per,id_to_char_org, config["char_dim"],
emb_weights, emb_weights_ner)
sess.run(model.char_lookup.assign(emb_weights))
logger.info("Load pre-trained embedding.")
logger.info("start training")
loss = []
loss_loc = []
loss_per = []
loss_org = []
for i in range(100):
for batch_loc in train_manager_loc.iter_batch(shuffle=True):
step_loc, batch_loss_loc = model.run_step_ner(sess, True, batch_loc)
loss_loc.append(batch_loss_loc)
if step_loc % FLAGS.steps_check == 0:
iteration_loc = step_loc // steps_per_epoch_loc + 1
logger.info("iteration:{} step_loc:{}/{}, "
"NER loss:{:>9.6f}".format(
iteration_loc, step_loc % steps_per_epoch_loc, steps_per_epoch_loc, np.mean(loss_loc)))
loss_loc = []
for batch in train_manager.iter_batch(shuffle=True):
step, batch_loss = model.run_step(sess, True, batch)
loss.append(batch_loss)
if step % FLAGS.steps_check == 0:
iteration_1 = step // steps_per_epoch + 1
logger.info("iteration:{} step:{}/{}, "
"SKILL loss:{:>9.6f}".format(
iteration_1, step % steps_per_epoch, steps_per_epoch, np.mean(loss)))
loss = []
precision_loc_dev = model.precision(sess, dev_manager, id_to_tag)
precision_loc_test = model.precision(sess, test_manager, id_to_tag)
for batch_per in train_manager_per.iter_batch(shuffle=True):
step_per, batch_loss_per = model.run_step_ner(sess, True, batch_per)
loss_per.append(batch_loss_per)
if step_per % FLAGS.steps_check == 0:
iteration_per = step_per // steps_per_epoch_per + 1
logger.info("iteration:{} step_per:{}/{}, "
"NER loss:{:>9.6f}".format(
iteration_per, step_per % steps_per_epoch_per, steps_per_epoch_per, np.mean(loss_per)))
loss_per = []
for batch in train_manager.iter_batch(shuffle=True):
step, batch_loss = model.run_step(sess, True, batch)
loss.append(batch_loss)
if step % FLAGS.steps_check == 0:
iteration_2 = step // steps_per_epoch + 1
logger.info("iteration:{} step:{}/{}, "
"SKILL loss:{:>9.6f}".format(
iteration_2, step % steps_per_epoch, steps_per_epoch, np.mean(loss)))
loss = []
precision_per_dev = model.precision(sess, dev_manager, id_to_tag)
precision_per_test = model.precision(sess, test_manager, id_to_tag)
for batch_org in train_manager_org.iter_batch(shuffle=True):
step_org, batch_loss_org = model.run_step_ner(sess, True, batch_org)
loss_org.append(batch_loss_org)
if step_org % FLAGS.steps_check == 0:
iteration_org = step_org // steps_per_epoch_org + 1
logger.info("iteration:{} step_org:{}/{}, "
"NER loss:{:>9.6f}".format(
iteration_org, step_org % steps_per_epoch_org, steps_per_epoch_org, np.mean(loss_org)))
loss_org = []
for batch in train_manager.iter_batch(shuffle=True):
step, batch_loss = model.run_step(sess, True, batch)
loss.append(batch_loss)
if step % FLAGS.steps_check == 0:
iteration_3 = step // steps_per_epoch + 1
logger.info("iteration:{} step:{}/{}, "
"SKILL loss:{:>9.6f}".format(
iteration_3, step % steps_per_epoch, steps_per_epoch, np.mean(loss)))
loss = []
precision_org_dev = model.precision(sess, dev_manager, id_to_tag)
precision_org_test = model.precision(sess, test_manager, id_to_tag)
best = evaluate(sess, model, "dev", dev_manager, id_to_tag,precision_loc_dev,precision_per_dev,precision_org_dev, logger)
if best:
save_model(sess, model, FLAGS.ckpt_path, logger)
best_test,results= evaluate(sess, model, "test", test_manager, id_to_tag,precision_loc_test,precision_per_test,precision_org_test, logger)
with open("CDTL_PSE-result.csv", "a",encoding='utf-8')as st_re:
st_re.write(str(results).replace("[", "").replace("]", ""))
st_re.write("\n")
models['upscale'][scale].parameters(),
'lr':
LEARNING_RATE * 0.1
})
optimizer.add_param_group({
'params': models['extra'].parameters(),
'lr': LEARNING_RATE * 0.1
})
#set Meter to calculate the average of loss
train_loss = meter.AverageMeter()
#running
for epoch in range(EPOCH_START, EPOCH_START + EPOCH):
#select upscale factor
scale = UPSCALE_FACTOR_LIST[epoch % len(UPSCALE_FACTOR_LIST)]
datasets.scale_factor = scale
#load data
train_data_loader = torch.utils.data.DataLoader(dataset=train_data,
batch_size=BATCH_SIZE,
shuffle=True,
num_workers=4)
for iteration in range(ITER_PER_EPOCH):
train(models, scale, train_data_loader, criterion, optimizer,
train_loss, False)
print('{:0>3d}: train_loss: {:.8f}, scale: {}'.format(
epoch + 1, train_loss.avg, scale))
utils.save_model(models, scale, SAVE_PATH,
epoch // len(UPSCALE_FACTOR_LIST) + 1)
train_loss.reset()
def train():
# load data sets
train_sentences = load_sentences(FLAGS.train_file, FLAGS.lower, FLAGS.zeros)
dev_sentences = load_sentences(FLAGS.dev_file, FLAGS.lower, FLAGS.zeros)
test_sentences = load_sentences(FLAGS.test_file, FLAGS.lower, FLAGS.zeros)
# Use selected tagging scheme (IOB / IOBES)
update_tag_scheme(train_sentences, FLAGS.tag_schema)
update_tag_scheme(test_sentences, FLAGS.tag_schema)
# create maps if not exist
if not os.path.isfile(FLAGS.map_file):
# create dictionary for word
if FLAGS.pre_emb:
dico_chars_train = char_mapping(train_sentences, FLAGS.lower)[0]
dico_chars, char_to_id, id_to_char = augment_with_pretrained(
dico_chars_train.copy(),
FLAGS.emb_file,
list(itertools.chain.from_iterable(
[[w[0] for w in s] for s in test_sentences])
)
)
else:
_c, char_to_id, id_to_char = char_mapping(train_sentences, FLAGS.lower)
# Create a dictionary and a mapping for tags
_t, tag_to_id, id_to_tag = tag_mapping(train_sentences)
with open(FLAGS.map_file, "wb") as f:
pickle.dump([char_to_id, id_to_char, tag_to_id, id_to_tag], f)
else:
with open(FLAGS.map_file, "rb") as f:
char_to_id, id_to_char, tag_to_id, id_to_tag = pickle.load(f)
# prepare data, get a collection of list containing index
train_data = prepare_dataset(
train_sentences, char_to_id, tag_to_id, FLAGS.lower
)
dev_data = prepare_dataset(
dev_sentences, char_to_id, tag_to_id, FLAGS.lower
)
test_data = prepare_dataset(
test_sentences, char_to_id, tag_to_id, FLAGS.lower
)
print("%i / %i / %i sentences in train / dev / test." % (
len(train_data), 0, len(test_data)))
train_manager = BatchManager(train_data, FLAGS.batch_size)
dev_manager = BatchManager(dev_data, 100)
test_manager = BatchManager(test_data, 100)
# make path for store log and model if not exist
make_path(FLAGS)
if os.path.isfile(FLAGS.config_file):
config = load_config(FLAGS.config_file)
else:
config = config_model(char_to_id, tag_to_id)
save_config(config, FLAGS.config_file)
make_path(FLAGS)
log_path = os.path.join("log", FLAGS.log_file)
logger = get_logger(log_path)
print_config(config, logger)
# limit GPU memory
tf_config = tf.ConfigProto()
tf_config.gpu_options.allow_growth = True
steps_per_epoch = train_manager.len_data
with tf.Session(config=tf_config) as sess:
model = create_model(sess, Model, FLAGS.ckpt_path, load_word2vec, config, id_to_char, logger)
logger.info("start training")
loss = []
for i in range(100):
for batch in train_manager.iter_batch(shuffle=True):
#print batch
step, batch_loss = model.run_step(sess, True, batch)
#print step
loss.append(batch_loss)
if step % FLAGS.steps_check == 0:
iteration = step // steps_per_epoch + 1
logger.info("iteration:{} step:{}/{}, "
"NER loss:{:>9.6f}".format(
iteration, step%steps_per_epoch, steps_per_epoch, np.mean(loss)))
loss = []
best = evaluate(sess, model, "dev", dev_manager, id_to_tag, logger)
if best:
save_model(sess, model, FLAGS.ckpt_path, logger)
evaluate(sess, model, "test", test_manager, id_to_tag, logger)
def main():
torch.set_printoptions(linewidth=320)
args = get_args()
print(args)
# set device
device = torch.device("cuda:1" if torch.cuda.is_available() else "cpu")
sintel_train_dir = '/media/yotamg/bd0eccc9-4cd5-414c-b764-c5a7890f9785/Yotam/Sintel/left_filtered/rgb'
sintel_test_dir = sintel_train_dir
sintel_label_dir = '/media/yotamg/bd0eccc9-4cd5-414c-b764-c5a7890f9785/Yotam/Sintel/left_filtered_cont_GT'
sintel_train_files = [img for img in os.listdir(sintel_train_dir) if 'alley_1' not in img]
sintel_test_files = [img for img in os.listdir(sintel_test_dir) if 'alley_1' in img]
sintel_train_filelist = [os.path.join(sintel_train_dir, img) for img in sintel_train_files]
sintel_test_filelist = [os.path.join(sintel_test_dir, img) for img in sintel_test_files]
sintel_train_label_filelist = [img.replace(sintel_train_dir, sintel_label_dir).replace('_1100_maskImg.png', '_GT.dpt') for img in sintel_train_filelist]
sintel_test_label_filelist = [img.replace(sintel_test_dir, sintel_label_dir).replace('_1100_maskImg.png', '_GT.dpt') for img in sintel_test_filelist]
just_sintel = False
if just_sintel:
train_filelist = sintel_train_filelist
test_filelist = sintel_test_filelist
train_label_filelist = sintel_train_label_filelist
test_label_filelist = sintel_test_label_filelist
else:
tau_train_dir = '/media/yotamg/bd0eccc9-4cd5-414c-b764-c5a7890f9785/Yotam/Tau-agent/left_filtered/rgb'
tau_test_dir = tau_train_dir
tau_label_dir = '/media/yotamg/bd0eccc9-4cd5-414c-b764-c5a7890f9785/Yotam/Tau-agent/left_filtered_cont_GT'
#Take one scene for testing (WuMunchu)
tau_train_files = [img for img in os.listdir(tau_train_dir) if 'WuM' not in img]
tau_test_files = [img for img in os.listdir(tau_train_dir) if 'WuM' in img]
tau_train_filelist = [os.path.join(tau_train_dir, img) for img in tau_train_files]
tau_test_filelist = [os.path.join(tau_test_dir, img) for img in tau_test_files]
tau_train_label_filelist = [img.replace(tau_train_dir, tau_label_dir).replace('_1100_maskImg.png', '_GT.dpt') for img in tau_train_filelist]
tau_test_label_filelist = [img.replace(tau_test_dir, tau_label_dir).replace('_1100_maskImg.png', '_GT.dpt') for img in tau_test_filelist]
train_filelist = sintel_train_filelist + tau_train_filelist
test_filelist = sintel_test_filelist + tau_test_filelist
train_label_filelist = sintel_train_label_filelist + tau_train_label_filelist
test_label_filelist = sintel_test_label_filelist + tau_test_label_filelist
# train_filelist = open("filename.txt").readlines()
# train_dir = '/home/yotamg/data/raw_rgb_pngs'
# train_filelist = [os.path.join(train_dir,img) for img in os.listdir(train_dir)]
# test_filelist = train_filelist
# label_dir = '/media/yotamg/bd0eccc9-4cd5-414c-b764-c5a7890f9785/Yotam/Depth_sintel_and_tau_from_shay/'
# train_label_filelist = [img.replace(train_dir, label_dir).replace('.png', '.dpt') for img in train_filelist]
# test_label_filelist = train_label_filelist
transform = transforms.Compose(
[transforms.ToTensor(),
transforms.Normalize((0.5, 0.5, 0.5), (0.5, 0.5, 0.5))])
train_dataset = Dataset(image_filelist=train_filelist, label_filelist=train_label_filelist, train=True, pickle_name='train_cont_segmentation.pickle', transforms=transform, target_mode=args.target_mode)
test_dataset = Dataset(image_filelist=test_filelist, label_filelist=test_label_filelist, train=False, pickle_name='test_cont_segmentation.pickle', transforms=transform, target_mode=args.target_mode)
train_data_loader = torch.utils.data.DataLoader(train_dataset, batch_size=12, shuffle=True, num_workers=1)
test_data_loader = torch.utils.data.DataLoader(test_dataset, batch_size=12, shuffle=True, num_workers=1)
net = Net(device=device, mode=args.target, target_mode=args.target_mode)
model_name = 'DepthNet'
if args.load_model:
load_model(net, device,fullpath=args.load_path)
if args.train:
train_loss, val_loss = train(net=net, train_data_loader=train_data_loader, test_data_loader=test_data_loader, device=device, num_epochs=args.epochs)
_plot_fig(train_loss, val_loss, model_name+'-Losses')
save_model(net, epoch=args.epochs, experiment_name=args.experiment_name)
def train_conv(args):
# Creating convolution model here.
####################################
print("Defining model")
model_gat = SpKBGATModified(entity_embeddings, relation_embeddings,
args.entity_out_dim, args.entity_out_dim,
args.drop_GAT, args.alpha, args.nheads_GAT)
print("Only Conv model trained")
model_conv = SpKBGATConvOnly(entity_embeddings, relation_embeddings,
args.entity_out_dim, args.entity_out_dim,
args.drop_GAT, args.drop_conv, args.alpha,
args.alpha_conv, args.nheads_GAT,
args.out_channels)
if CUDA:
model_conv.cuda()
model_gat.cuda()
model_gat.load_state_dict(
torch.load('{}/trained_{}.pth'.format(args.output_folder,
args.epochs_gat - 1)))
model_conv.final_entity_embeddings = model_gat.final_entity_embeddings
model_conv.final_relation_embeddings = model_gat.final_relation_embeddings
Corpus_.batch_size = args.batch_size_conv
Corpus_.invalid_valid_ratio = int(args.valid_invalid_ratio_conv)
optimizer = torch.optim.Adam(model_conv.parameters(),
lr=args.lr,
weight_decay=args.weight_decay_conv)
scheduler = torch.optim.lr_scheduler.StepLR(optimizer,
step_size=25,
gamma=0.5,
last_epoch=-1)
margin_loss = torch.nn.SoftMarginLoss()
epoch_losses = [] # losses of all epochs
print("Number of epochs {}".format(args.epochs_conv))
for epoch in range(args.epochs_conv):
random.shuffle(Corpus_.train_triples)
Corpus_.train_indices = np.array(list(Corpus_.train_triples)).astype(
np.int32)
model_conv.train() # getting in training mode
start_time = time.time()
epoch_loss = []
if len(Corpus_.train_indices) % args.batch_size_conv == 0:
num_iters_per_epoch = len(
Corpus_.train_indices) // args.batch_size_conv
else:
num_iters_per_epoch = (len(Corpus_.train_indices) //
args.batch_size_conv) + 1
for iters in range(num_iters_per_epoch):
start_time_iter = time.time()
train_indices, train_values = Corpus_.get_iteration_batch(iters)
if CUDA:
train_indices = Variable(
torch.LongTensor(train_indices)).cuda()
train_values = Variable(torch.FloatTensor(train_values)).cuda()
else:
train_indices = Variable(torch.LongTensor(train_indices))
train_values = Variable(torch.FloatTensor(train_values))
preds = model_conv(Corpus_, Corpus_.train_adj_matrix,
train_indices)
optimizer.zero_grad()
loss = margin_loss(preds.view(-1), train_values.view(-1))
loss.backward()
optimizer.step()
epoch_loss.append(loss.data.item())
end_time_iter = time.time()
if iters % 500 == 0:
print(
"Iteration-> {0} , Iteration_time-> {1:.4f} , Iteration_loss {2:.4f}"
.format(iters, end_time_iter - start_time_iter,
loss.data.item()))
summary.add_scalar('loss/conv_loss_iter', loss.data.item(),
iters + epoch * num_iters_per_epoch)
scheduler.step()
if epoch % 10 == 0:
print("Epoch {} , average loss {} , epoch_time {}".format(
epoch,
sum(epoch_loss) / len(epoch_loss),
time.time() - start_time))
epoch_losses.append(sum(epoch_loss) / len(epoch_loss))
summary.add_scalar('loss/conv_loss_epoch',
sum(epoch_loss) / len(epoch_loss), epoch)
if (epoch + 1) % 10 == 0:
save_model(model_conv, args.data, epoch,
args.output_folder + "conv/")
now = time.localtime()
f = open(
(args.output_folder + "train_conv_epoch_losses_{}-{}-{}.txt").format(
now.tm_year, now.tm_mon, now.tm_mday), 'w')
for i in epoch_losses:
f.write(str(i))
f.write('\n')
f.close()
def __call__(self, sess, epoch, iteration, model, loss, processed):
if iteration == 0 and epoch % self.at_every_epoch == 0:
print("Saving model...")
save_model(self.saver, sess, self.path, model, self.config)
print("learning...")
if params["batch_training"]:
for e in range(params["n_epoch"]):
print("epoch number: %d" % e)
for X_batch, y_batch in batches:
y_batch = np_utils.to_categorical(y_batch, n_classes)
m.fit(X_batch, y_batch, batch_size=params["mini_batch_size"],
nb_epoch=1, verbose=1, validation_data=(X_test, y_test))
# loss = m.train_on_batch(X_batch, y_batch)
# print("loss: [%d]" % loss[0])
else:
# canister callback
# callback = DBCallback("CharConvLM", "tokenized", params)
X_train = batches.X
y_train = np_utils.to_categorical(batches.y, n_classes)
m.fit(X_train, y_train,
validation_split=0.05,
batch_size=params["batch_size"],
nb_epoch=params["n_epoch"],
show_accuracy=True,
verbose=1# ,
# callbacks=[callback]
)
print("saving model params...")
fname = '/home/manjavacas/code/python/spelldict/models/model'
save_model(m, batches.word_indexer, batches.char_indexer, fname)
def do_train(train_texts, train_labels, dev_texts, dev_labels, lstm_shape, lstm_settings,
lstm_optimizer, batch_size=100,
do_fit1=True, epochs1=5, model1_path=None, config1_path=None,
do_fit2=False, epochs2=2, model2_path=None, config2_path=None,
epoch_path=None, lstm_type=1):
"""Train a Keras model on the sentences in `train_texts`
All the sentences in a text have the text's label
do_fit1: Fit with frozen word embeddings
do_fit2: Fit with unfrozen word embeddings (after fitting with frozen embeddings) at a lower
learning rate
"""
print('do_train: train_texts=%s dev_texts=%s' % (dim(train_texts), dim(dev_texts)))
best_epoch_frozen, best_epoch_unfrozen = -1, -1
n_train_sents = count_sentences(train_texts, batch_size, 'train')
X_train, y_train = make_sentences(lstm_shape['max_length'], batch_size,
train_texts, train_labels, 'train', n_train_sents)
validation_data = None
if dev_texts is not None:
n_dev_sents = count_sentences(dev_texts, batch_size, 'dev')
X_val, y_val = make_sentences(lstm_shape['max_length'], batch_size,
dev_texts, dev_labels, 'dev', n_dev_sents)
validation_data = (X_val, y_val)
sentence_cache.flush()
print("Loading spaCy")
nlp = sentence_cache._load_nlp()
embeddings = get_embeddings(nlp.vocab)
model = build_lstm[lstm_type](embeddings, lstm_shape, lstm_settings)
compile_lstm(model, lstm_settings['lr'])
callback_list = None
if do_fit1:
if validation_data is not None:
ra_val = RocAucEvaluation(validation_data=validation_data, interval=1, frozen=True,
model_path=model1_path, config_path=config1_path)
early = EarlyStopping(monitor='val_auc', mode='max', patience=2, verbose=1)
callback_list = [ra_val, early]
else:
sae = SaveAllEpochs(model1_path, config1_path, epoch_path, True)
if sae.last_epoch1() > 0:
xprint('Reloading partially built model 1')
get_embeds = partial(get_embeddings, vocab=nlp.vocab)
model = load_model(model1_path, config1_path, True, get_embeds)
compile_lstm(model, lstm_settings['lr'])
epochs1 -= sae.last_epoch1()
callback_list = [sae]
if epochs1 > 0:
model.fit(X_train, y_train, batch_size=batch_size, epochs=epochs1,
validation_data=validation_data, callbacks=callback_list, verbose=1)
if validation_data is not None:
best_epoch_frozen = ra_val.best_epoch
ra_val.best_epoch = -1
else:
save_model(model, model1_path, config1_path, True)
if do_fit2:
# Reload the best model so far, if it exists
if os.path.exists(model1_path) and os.path.exists(config1_path):
model = load_model(model1_path, config1_path, True,
partial(get_embeddings, vocab=nlp.vocab))
xprint("Unfreezing")
for layer in model.layers:
layer.trainable = True
compile_lstm(model, lstm_settings['lr'] / 10)
if validation_data is not None:
# Reset early stopping
ra_val = RocAucEvaluation(validation_data=validation_data, interval=1,
frozen=False, was_frozen=True,
get_embeddings=partial(get_embeddings, vocab=nlp.vocab),
do_prime=True, model_path=model1_path, config_path=config1_path)
early = EarlyStopping(monitor='val_auc', mode='max', patience=2, verbose=1)
callback_list = [ra_val, early]
else:
sae = SaveAllEpochs(model2_path, config2_path, epoch_path, False)
if sae.last_epoch2() > 0:
xprint('Reloading partially built model 2')
get_embeds = partial(get_embeddings, vocab=nlp.vocab)
model = load_model(model2_path, config2_path, False)
compile_lstm(model, lstm_settings['lr'])
epochs2 -= sae.last_epoch2()
callback_list = [sae]
if epochs2 > 0:
model.fit(X_train, y_train, batch_size=batch_size, epochs=epochs2,
validation_data=validation_data, callbacks=callback_list, verbose=1)
best_epoch_unfrozen = ra_val.best_epoch
if validation_data is None:
save_model(model, model2_path, config2_path, False)
del nlp
return model, (best_epoch_frozen, best_epoch_unfrozen)
g_error = g_error.item()
global_step += 1
# Display Progress every few batches
if global_step % 50 == 0:
dis.add_scalar("epoch",epoch,global_step)
dis.add_scalar("g_error",g_error,global_step)
dis.add_scalar("d_error",d_error.item(),global_step)
dis.add_scalar("beta",temperature.item(),global_step)
if epoch % 20 == 0:
test_samples = generator(z=test_noise,num_steps=num_steps,temperature=temperature)
test_samples_vals = torch.argmax(test_samples,dim=2)
test_samples_text = tensor_to_words(test_samples_vals,num_to_word_vocab)
text_log.write("Epoch: "+str(epoch)+"\n"+test_samples_text+"\n")
if epoch % 10 == 0:
save_model(generator,summary_path)
save_model(discriminator,summary_path)
epoch += 1
except:
save_model(generator,summary_path)
save_model(discriminator,summary_path)
test_samples = generator(z=test_noise,num_steps=num_steps,temperature=temperature)
test_samples_vals = torch.argmax(test_samples,dim=2)
test_samples_text = tensor_to_words(test_samples_vals,num_to_word_vocab)
text_log.write("After training:\n"+test_samples_text+"\n")
def nll_gen(real_data,fake_data):
'''
Evaluate the generators ability to generate diverse samples
'''
def train(M, src=None, trg=None, has_disc=True, saver=None, model_name=None):
"""Main training function
Creates log file, manages datasets, trains model
M - (TensorDict) the model
src - (obj) source domain. Contains train/test Data obj
trg - (obj) target domain. Contains train/test Data obj
has_disc - (bool) whether model requires a discriminator update
saver - (Saver) saves models during training
model_name - (str) name of the model being run with relevant parms info
"""
# Training settings
bs = 64
iterep = 1000
itersave = 20000
n_epoch = 80
epoch = 0
feed_dict = {}
# Create a log directory and FileWriter
log_dir = os.path.join(args.logdir, model_name)
delete_existing(log_dir)
train_writer = tf.summary.FileWriter(log_dir)
# Create a save directory
if saver:
model_dir = os.path.join('checkpoints', model_name)
delete_existing(model_dir)
os.makedirs(model_dir)
# Replace src domain with psuedolabeled trg
if args.dirt > 0:
print "Setting backup and updating backup model"
src = PseudoData(args.trg, trg, M.teacher)
M.sess.run(M.update_teacher)
# Sanity check model
print_list = []
if src:
save_value(M.fn_ema_acc, 'test/src_test_ema_1k',
src.test, train_writer, 0, print_list, full=False)
if trg:
save_value(M.fn_ema_acc, 'test/trg_test_ema',
trg.test, train_writer, 0, print_list)
save_value(M.fn_ema_acc, 'test/trg_train_ema_1k',
trg.train, train_writer, 0, print_list, full=False)
print print_list
if src: get_info(args.src, src)
if trg: get_info(args.trg, trg)
print "Batch size:", bs
print "Iterep:", iterep
print "Total iterations:", n_epoch * iterep
print "Log directory:", log_dir
for i in xrange(n_epoch * iterep):
# Run discriminator optimizer
if has_disc:
update_dict(M, feed_dict, src, trg, bs)
summary, _ = M.sess.run(M.ops_disc, feed_dict)
train_writer.add_summary(summary, i + 1)
# Run main optimizer
update_dict(M, feed_dict, src, trg, bs)
summary, _ = M.sess.run(M.ops_main, feed_dict)
train_writer.add_summary(summary, i + 1)
train_writer.flush()
end_epoch, epoch = tb.utils.progbar(i, iterep,
message='{}/{}'.format(epoch, i),
display=args.run >= 999)
# Update pseudolabeler
if args.dirt and (i + 1) % args.dirt == 0:
print "Updating teacher model"
M.sess.run(M.update_teacher)
# Log end-of-epoch values
if end_epoch:
print_list = M.sess.run(M.ops_print, feed_dict)
if src:
save_value(M.fn_ema_acc, 'test/src_test_ema_1k',
src.test, train_writer, i + 1, print_list, full=False)
if trg:
save_value(M.fn_ema_acc, 'test/trg_test_ema',
trg.test, train_writer, i + 1, print_list)
save_value(M.fn_ema_acc, 'test/trg_train_ema_1k',
trg.train, train_writer, i + 1, print_list, full=False)
print_list += ['epoch', epoch]
print print_list
if saver and (i + 1) % itersave == 0:
save_model(saver, M, model_dir, i + 1)
# Saving final model
if saver:
save_model(saver, M, model_dir, i + 1)
def main(config):
result_name = '{}_{}_{}way_{}shot'.format(
config['data_name'],
config['arch']['base_model'],
config['general']['way_num'],
config['general']['shot_num'],
)
save_path = os.path.join(config['general']['save_root'], result_name)
if not os.path.exists(save_path):
os.mkdir(save_path)
fout_path = os.path.join(save_path, 'train_info.txt')
fout_file = open(fout_path, 'a+')
with open(os.path.join(save_path, 'config.json'), 'w') as handle:
json.dump(config, handle, indent=4, sort_keys=True)
print_func(config, fout_file)
train_trsfms = transforms.Compose([
transforms.Resize((config['general']['image_size'],
config['general']['image_size'])),
transforms.ToTensor(),
transforms.Normalize(mean=mean, std=std),
])
val_trsfms = transforms.Compose([
transforms.Resize((config['general']['image_size'],
config['general']['image_size'])),
transforms.ToTensor(),
transforms.Normalize(mean=mean, std=std),
])
model = ALTNet(**config['arch'])
print_func(model, fout_file)
optimizer = optim.Adam(model.parameters(), lr=config['train']['optim_lr'])
if config['train']['lr_scheduler']['name'] == 'StepLR':
lr_scheduler = optim.lr_scheduler.StepLR(
optimizer=optimizer, **config['train']['lr_scheduler']['args'])
elif config['train']['lr_scheduler']['name'] == 'MultiStepLR':
lr_scheduler = optim.lr_scheduler.MultiStepLR(
optimizer=optimizer, **config['train']['lr_scheduler']['args'])
else:
raise RuntimeError
if config['train']['loss']['name'] == 'CrossEntropyLoss':
criterion = nn.CrossEntropyLoss(**config['train']['loss']['args'])
else:
raise RuntimeError
device, _ = prepare_device(config['n_gpu'])
model = model.to(device)
criterion = criterion.to(device)
best_val_prec1 = 0
best_test_prec1 = 0
for epoch_index in range(config['train']['epochs']):
print_func('{} Epoch {} {}'.format('=' * 35, epoch_index, '=' * 35),
fout_file)
train_dataset = ImageFolder(
data_root=config['general']['data_root'],
mode='train',
episode_num=config['train']['episode_num'],
way_num=config['general']['way_num'],
shot_num=config['general']['shot_num'],
query_num=config['general']['query_num'],
transform=train_trsfms,
)
val_dataset = ImageFolder(
data_root=config['general']['data_root'],
mode='val',
episode_num=config['test']['episode_num'],
way_num=config['general']['way_num'],
shot_num=config['general']['shot_num'],
query_num=config['general']['query_num'],
transform=val_trsfms,
)
test_dataset = ImageFolder(
data_root=config['general']['data_root'],
mode='test',
episode_num=config['test']['episode_num'],
way_num=config['general']['way_num'],
shot_num=config['general']['shot_num'],
query_num=config['general']['query_num'],
transform=val_trsfms,
)
print_func(
'The num of the train_dataset: {}'.format(len(train_dataset)),
fout_file)
print_func('The num of the val_dataset: {}'.format(len(val_dataset)),
fout_file)
print_func('The num of the test_dataset: {}'.format(len(test_dataset)),
fout_file)
train_loader = torch.utils.data.DataLoader(
train_dataset,
batch_size=config['train']['batch_size'],
shuffle=True,
num_workers=config['general']['workers_num'],
drop_last=True,
pin_memory=True)
val_loader = torch.utils.data.DataLoader(
val_dataset,
batch_size=config['test']['batch_size'],
shuffle=True,
num_workers=config['general']['workers_num'],
drop_last=True,
pin_memory=True)
test_loader = torch.utils.data.DataLoader(
test_dataset,
batch_size=config['test']['batch_size'],
shuffle=True,
num_workers=config['general']['workers_num'],
drop_last=True,
pin_memory=True)
# train for 5000 episodes in each epoch
print_func('============ Train on the train set ============',
fout_file)
train(train_loader, model, criterion, optimizer, epoch_index, device,
fout_file, config['general']['image2level'],
config['general']['print_freq'])
print_func('============ Validation on the val set ============',
fout_file)
val_prec1 = validate(val_loader, model, criterion, epoch_index, device,
fout_file, config['general']['image2level'],
config['general']['print_freq'])
print_func(
' * Prec@1 {:.3f} Best Prec1 {:.3f}'.format(
val_prec1, best_val_prec1), fout_file)
print_func('============ Testing on the test set ============',
fout_file)
test_prec1 = validate(test_loader, model, criterion, epoch_index,
device, fout_file,
config['general']['image2level'],
config['general']['print_freq'])
print_func(
' * Prec@1 {:.3f} Best Prec1 {:.3f}'.format(
test_prec1, best_test_prec1), fout_file)
if val_prec1 > best_val_prec1:
best_val_prec1 = val_prec1
best_test_prec1 = test_prec1
save_model(model,
save_path,
config['data_name'],
epoch_index,
is_best=True)
if epoch_index % config['general'][
'save_freq'] == 0 and epoch_index != 0:
save_model(model,
save_path,
config['data_name'],
epoch_index,
is_best=False)
lr_scheduler.step()
print_func('............Training is end............', fout_file)
train_loss, train_acc = train(net, train_loader, criterion, optimizer,
args.v)
val_loss, val_acc, fscore = validate(net, val_loader, criterion)
end = time.time()
# print stats
stats = """Epoch: {}\t train loss: {:.3f}, train acc: {:.3f}\t
val loss: {:.3f}, val acc: {:.3f}\t fscore: {:.3f}\t
time: {:.1f}s""".format(e, train_loss, train_acc, val_loss,
val_acc, fscore, end - start)
print(stats)
print(stats, file=logfile)
log_value('train_loss', train_loss, e)
log_value('val_loss', val_loss, e)
log_value('fscore', fscore, e)
#early stopping and save best model
if val_loss < best_loss:
best_loss = val_loss
patience = args.patience
utils.save_model(
{
'arch': args.model,
'state_dict': net.state_dict()
}, 'saved-models/{}-run-{}.pth.tar'.format(args.model, run))
else:
patience -= 1
if patience == 0:
print('Run out of patience!')
break
def main_worker(gpu, args):
args.gpu = gpu
if args.multiGPUs and args.gpu != 0:
def print_pass(*args):
pass
builtins.print = print_pass
if args.gpu is not None:
print('Use GPU: {} for training'.format(args.gpu))
if args.multiGPUs:
args.rank = gpu
setup(args.rank, args.world_size)
if args.gpu is not None:
torch.cuda.set_device(args.gpu)
args.workers = int(
(args.workers + args.world_size - 1) / args.world_size)
# prepare data
if args.task == 'pvqa':
dict_path = 'data/pvqa/pvqa_dictionary.pkl'
dictionary = Dictionary.load_from_file(dict_path)
train_dset = PVQAFeatureDataset(args.train, dictionary, adaptive=False)
val_dset = PVQAFeatureDataset(args.val, dictionary, adaptive=False)
w_emb_path = 'data/pvqa/glove_pvqa_300d.npy'
else:
raise Exception('%s not implemented yet' % args.task)
if args.multiGPUs:
train_sampler = torch.utils.data.distributed.DistributedSampler(
train_dset)
else:
train_sampler = None
if args.task == 'pvqa':
train_loader = DataLoader(train_dset,
args.batch_size,
shuffle=False,
num_workers=args.workers,
pin_memory=True,
sampler=train_sampler)
eval_loader = DataLoader(val_dset,
args.batch_size,
shuffle=False,
num_workers=args.workers,
pin_memory=True)
# prepare model
model = BanModel(ntoken=train_dset.dictionary.ntoken,
num_ans_candidates=train_dset.num_ans_candidates,
num_hid=args.num_hid,
v_dim=train_dset.v_dim,
op=args.op,
gamma=args.gamma)
tfidf = None
weights = None
model.w_emb.init_embedding(w_emb_path, tfidf, weights)
if args.multiGPUs:
if args.gpu is not None:
torch.cuda.set_device(args.gpu)
model.cuda(args.gpu)
args.workers = int(
(args.workers + args.world_size - 1) / args.world_size)
model = DDP(model, device_ids=[args.gpu])
else:
model.cuda()
model = DDP(model)
else:
torch.cuda.set_device(args.gpu)
model.cuda(args.gpu)
# load snapshot
if args.input is not None:
print('#8')
print('loading %s' % args.input)
if args.gpu is None:
model_data = torch.load(args.input)
else:
loc = 'cuda:{}'.format(args.gpu)
model_data = torch.load(args.input, map_location=loc)
model_data_sd = model_data.get('model_state', model_data)
for name, param in model.named_parameters():
if name in model_data_sd:
param.data = model_data_sd[name]
# optimizer = torch.optim.Adamax(filter(lambda p: p.requires_grad, model.parameters()))
# optimizer.load_state_dict(model_data.get('optimizer_state', model_data))
args.start_epoch = model_data['epoch'] + 1
optimizer = torch.optim.Adamax(
filter(lambda p: p.requires_grad, model.parameters()))
best_eval_score = 0
for epoch in range(args.start_epoch, args.epochs):
if args.multiGPUs:
train_sampler.set_epoch(epoch)
adjust_learning_rate(optimizer, epoch, args)
# train for one epoch
train(train_loader, eval_loader, train_dset, model, optimizer, epoch,
args)
eval_score = evaluate(eval_loader, model, args)
with open(os.path.join(args.output, 'log.log'), 'a') as f:
f.write(str(datetime.datetime.now()))
f.write('epoch=%d' % epoch)
f.write('eval_score=%.4f' % eval_score)
print('eval_score=', eval_score)
print('best eval_score = ', best_eval_score)
if not args.multiGPUs or (args.multiGPUs and args.gpu == 0):
if eval_score > best_eval_score:
model_path = os.path.join(args.output, 'model_best.pth')
utils.save_model(model_path, model, epoch, optimizer)
best_eval_score = eval_score
question, answer_target = question.to(device), answer_target.to(
device)
optimizer.zero_grad()
output = net(question)
loss = criterion(output, answer_target)
loss.backward()
#nn.utils.clip_grad_norm(net.parameters(),0.25)
optimizer.step()
pred = output.data.max(1)[1]
correct = (pred == answer_target).data.cpu().sum()
acc += correct.item()
number_dataset += len(answer_target)
total_loss += loss
total_loss /= len(train_data)
acc = acc / number_dataset * 100.
logger.info('-------[Epoch]:{}-------'.format(epoch))
logger.info('[Train] Loss:{:.6f} , Train_Acc:{:.6f}%'.format(
total_loss, acc))
# Evaluation
if val_data is not None:
eval_score = evaluate(net, val_data, logger, device)
if eval_score > best_eval_score:
best_eval_score = eval_score
best_epoch = epoch
utils.save_model(ckpt_path, net, epoch)
logger.info('[Result] The best acc is {:.6f}% at epoch {}'.format(
best_eval_score, best_epoch))
def main():
print(device_lib.list_local_devices())
args = parse_args()
args.verbose = True
try:
# get paths to midi files in --data_dir
midi_files = [os.path.join(args.data_dir, path) \
for path in os.listdir(args.data_dir) \
if '.mid' in path or '.midi' in path]
except OSError as e:
utils.log(
'Error: Invalid --data_dir, {} directory does not exist. Exiting.',
args.verbose)
exit(1)
utils.log(
'Found {} midi files in {}'.format(len(midi_files), args.data_dir),
args.verbose)
if len(midi_files) < 1:
utils.log(
'Error: no midi files found in {}. Exiting.'.format(args.data_dir),
args.verbose)
exit(1)
# create the experiment directory and return its name
experiment_dir = utils.create_experiment_dir(args.experiment_dir,
args.verbose)
# write --message to experiment_dir
if args.message:
with open(os.path.join(experiment_dir, 'message.txt'), 'w') as f:
f.write(args.message)
utils.log(
'Wrote {} bytes to {}'.format(
len(args.message),
os.path.join(experiment_dir, 'message.txt')), args.verbose)
val_split = 0.2 # use 20 percent for validation
val_split_index = int(float(len(midi_files)) * val_split)
# use generators to lazy load train/validation data, ensuring that the
# user doesn't have to load all midi files into RAM at once
train_generator = utils.get_data_generator(
midi_files[0:val_split_index],
window_size=args.window_size,
batch_size=args.batch_size,
num_threads=args.n_jobs,
max_files_in_ram=args.max_files_in_ram)
val_generator = utils.get_data_generator(
midi_files[val_split_index:],
window_size=args.window_size,
batch_size=args.batch_size,
num_threads=args.n_jobs,
max_files_in_ram=args.max_files_in_ram)
model, epoch = get_model(args)
if args.verbose:
print(model.summary())
utils.save_model(model, experiment_dir)
utils.log(
'Saved model to {}'.format(os.path.join(experiment_dir, 'model.json')),
args.verbose)
callbacks = get_callbacks(experiment_dir)
print('fitting model...')
# this is a somewhat magic number which is the average number of length-20 windows
# calculated from ~5K MIDI files from the Lakh MIDI Dataset.
magic_number = 827
start_time = time.time()
model.fit_generator(train_generator,
steps_per_epoch=len(midi_files) * magic_number /
args.batch_size,
epochs=args.num_epochs,
validation_data=val_generator,
validation_steps=len(midi_files) * 0.2 * magic_number /
args.batch_size,
verbose=1,
callbacks=callbacks,
initial_epoch=epoch)
utils.log('Finished in {:.2f} seconds'.format(time.time() - start_time),
args.verbose)
def test_mlp(learning_rate=0.01, L2_reg=0.00000001, n_epochs=200,
dataset='theano.join.data', ref_dataset = 'ref.theano.join.data', batch_size=10000, max_iter = 5000,
output='theano.model.out', validation_freq = 100, ada_epsilon = 0.000001, L2_reg_tie = 0.001, map_file = "labels.mapping"):
"""
Demonstrate stochastic gradient descent optimization for a multilayer
perceptron
This is demonstrated on MNIST.
:type learning_rate: float
:param learning_rate: learning rate used (factor for the stochastic
gradient
:type L2_reg: float
:param L2_reg: L2-norm's weight when added to the cost (see
regularization)
:type n_epochs: int
:param n_epochs: maximal number of epochs to run the optimizer
:type dataset: string
:param dataset: the path to the theano.classifier.data
"""
print (" Learning with params : ")
print (" Learning rate : " + str(learn_rate));
print (" Regularlization params : " + str(L2_reg))
print (" Regularlization of tieing together : " + str(L2_reg_tie))
print (" Batch size : " + str(batch_size))
print (" Max Iter : " + str(max_iter))
print (" Epochs : " + str(n_epochs))
print (" Evaluation frequency : " + str(validation_freq))
print ('... loading data ')
##### LOAD DATASET ORIGINAL and REF ##############
print (' ----> load the mapping matrix ')
mapping_matrix = load_mapping_matrix(map_file)
print (' ----> load the original data ')
datasets = load_data(dataset)
train_set_x, train_set_y = datasets[0]
valid_set_x, valid_set_y = datasets[1]
E = datasets[2]
W1 = datasets[3]
B1 = datasets[4]
W2 = datasets[5]
print (' ----> load the ref data ')
ref_datasets = load_data(ref_dataset)
ref_train_set_x, ref_train_set_y = ref_datasets[0]
ref_valid_set_x, ref_valid_set_y = ref_datasets[1]
refE = ref_datasets[2]
refW1 = ref_datasets[3]
refB1 = ref_datasets[4]
refW2 = ref_datasets[5]
# compute number of minibatches for training, validation and testing
n_train_batches = train_set_x.owner.inputs[0].get_value(borrow=True).shape[0] / batch_size
n_ref_train_batches = ref_train_set_x.owner.inputs[0].get_value(borrow=True).shape[0] / batch_size
n_valid_batches = valid_set_x.owner.inputs[0].get_value(borrow=True).shape[0] / batch_size
if train_set_x.owner.inputs[0].get_value(borrow=True).shape[0] % batch_size > 100: n_train_batches +=1
if valid_set_x.owner.inputs[0].get_value(borrow=True).shape[0] % batch_size > 100 : n_valid_batches +=1
print 'Training batches : ' + str(n_train_batches)
print 'Ref training batches : ' + str(n_ref_train_batches)
print 'Valid batches : ' + str(n_valid_batches)
######################
# BUILD ACTUAL MODEL #
######################
print '... building the model'
# allocate symbolic variables for the data
index = T.lscalar() # index to a [mini]batch
ref_index = T.lscalar() # Reference index to the source minibatch
x = T.imatrix('x') # the data is presented as rasterized images
xref = T.imatrix('xref') # the data is presented as rasterized images
yref = T.ivector('yref') # the labels are presented as 1D vector of
y = T.ivector('y') # the labels are presented as 1D vector of
# [int] labels
rng = numpy.random.RandomState(1234)
###### DROP OUT RATE #############
dropout_rate_hidden = 0.5
dropout_rate_visible = 0.2
#############################
# construct the MLP class
classifier = MLP(rng,
input=x,
refInput=xref,
E=E,
W1=W1,
B1=B1,
W2 = W2,
refE = refE,
refW1 = refW1,
refB1 = refB1,
refW2 = refW2,
mapping = mapping_matrix,
drop_out_rate=dropout_rate_hidden,
drop_out_embedding_rate=dropout_rate_visible
)
train_errors = (classifier.errors(y))
cost = (
classifier.negative_log_likelihood(y)
+ classifier.refNegative_log_likelihood(yref)
+ L2_reg * classifier.L2_sqr
+ L2_reg_tie * classifier.reg_L2_sqr
)
# end-snippet-4
# compiling a Theano function that computes the mistakes that are made
# by the model on a minibatch (remember index should always to even)
validate_model = theano.function(
inputs=[index],
outputs=classifier.errors(y),
givens={
x: valid_set_x[index * batch_size: (index + 1) * batch_size], # x,y here is symbolic variable
y: valid_set_y[index * batch_size: (index + 1) * batch_size]
#xref: numpy.zeros(batch_size),
#yref: numpy.zeros(batch_size)
}
)
# compute the gradient of cost with respect to theta
gparams = [T.grad(cost, param) for param in classifier.params]
# Put the adagrad here
#learning_rate = T.fscalar('lr') # learning rate to use
updates = OrderedDict()
for accugrad, param, gparam in zip(classifier._accugrads, classifier.params, gparams):
agrad = accugrad + gparam * gparam
dx = - (learning_rate / T.sqrt(agrad + ada_epsilon)) * gparam
updates[param] = param + dx
updates[accugrad] = agrad
# compiling a Theano function `train_model` that returns the cost, but
# in the same time updates the parameter of the model based on the rules
# defined in `updates`
train_model = theano.function(
inputs=[index,ref_index],
outputs=(cost, train_errors),
updates=updates,
givens={
x: train_set_x[index * batch_size: (index + 1) * batch_size], # x,y here is symbolic variable
y: train_set_y[index * batch_size: (index + 1) * batch_size],
xref: ref_train_set_x[ref_index * batch_size: (ref_index + 1) * batch_size],
yref: ref_train_set_y[ref_index * batch_size: (ref_index + 1) * batch_size]
}
)
# end-snippet-5
###############
# TRAIN MODEL #
###############
print '... training '
# early-stopping parameters
patience = 2000 # Long Duong : At least have to went through this much iteration
patience_increase = 2 # wait this much longer when a new best is found
improvement_threshold = 0.995 # a relative improvement of this much is
# considered significant
#validation_frequency = min(n_train_batches, patience / 2)
# go through this many
# minibatche before checking the network
# on the validation set; in this case we
# check every epoch
validation_frequency = validation_freq
######## FOR TESTING ONLY ##################
#validation_frequency = 5
#n_train_batches = 10
#n_epochs = 1
######################################
best_validation_loss = numpy.inf
best_iter = 0
test_score = 0.
start_time = time.clock()
epoch = 0
done_looping = False
ref_batch_idx = 0
while (epoch < n_epochs) and (not done_looping):
epoch = epoch + 1
for minibatch_index in xrange(n_train_batches):
(minibatch_avg_cost, minibatch_avg_error) = train_model(minibatch_index, ref_batch_idx)
ref_batch_idx += 1
if ref_batch_idx >= n_ref_train_batches:
ref_batch_idx = 0
# iteration number
iter = (epoch - 1) * n_train_batches + minibatch_index
print (' Iteration : ' + str(iter) + ' with Cost (join) = ' + str(minibatch_avg_cost) + ' with errors (target only) = ' + str(minibatch_avg_error))
# Long Duong : since in each epoch => n_train_batches has covered
# iter : is the number of update for the parameters (~ number of batches considered)
if (iter + 1) % validation_frequency == 0:
# Note that because we
validation_losses = [validate_model( i) for i
in xrange(n_valid_batches)]
this_validation_loss = numpy.mean(validation_losses)
print(
'epoch %i, minibatch %i/%i, validation error %f %%' %
(
epoch,
minibatch_index ,
n_train_batches,
this_validation_loss * 100.
)
)
# if we got the best validation score until now
if this_validation_loss < best_validation_loss:
#improve patience if loss improvement is good enough
if (this_validation_loss < best_validation_loss * improvement_threshold):
# Long Duong : this is the key : need iter to get this good result => Waiting this much iter to expect
# other better result ....
patience = max(patience, iter * patience_increase)
best_validation_loss = this_validation_loss
best_iter = iter
# Save the model
save_model(output,classifier.embeddingLayer.E.get_value(),
(classifier.dropout_HiddenLayer.W.get_value() * (1-dropout_rate_visible )).T,
classifier.dropout_HiddenLayer.b.get_value(),
(classifier.dropout_LogRegressionLayer.W.get_value() * (1- dropout_rate_hidden)).T)
# Long Duong : add max_iter criterion
if (patience <= iter) or (iter > max_iter) :
done_looping = True
break
end_time = time.clock()
print(('Optimization complete. Best validation score of %f %% '
'obtained at iteration %i') %
(best_validation_loss * 100., best_iter + 1))
print >> sys.stderr, ('The code for file ' +
os.path.split(__file__)[1] +
' ran for %.2fm' % ((end_time - start_time) / 60.))
import linear_model as lm
import utils
train_path = os.path.join(os.path.dirname(__file__), "./data/train.csv")
test_path = os.path.join(os.path.dirname(__file__), "./data/test.csv")
output_path = os.path.join(os.path.dirname(__file__), "./ans.csv")
model_path = os.path.join(os.path.dirname(__file__), "./model")
scaler_path = os.path.join(os.path.dirname(__file__), "./scaler")
fea_select, y_pos = (0, 4, 5, 6, 7, 8, 9, 16), 70
x, y= utils.load(train_path, mode = 'train', fea_select = fea_select, y_pos = y_pos) # 讀出所有 data 、擷取 feature 、劃分 9 天成一筆
x, max, min = utils.rescaling(x) # 作 rescaling ， 在 [0, 1] 間
x, y = utils.shuffle(x, y)
x_train, y_train, x_val, y_val = utils.validation(x, y, ratio = 0.1)
b, w = lm.LinearRegression(x, y, lr = 100000, epoch = 1000000, lr_method = 'adagrad', x_val = x_val, y_val = y_val)
x_test = utils.load(test_path, mode = 'test', fea_select = fea_select, y_pos = y_pos)
x_test = utils.scaling(x_test, max, min)
predicted = lm.predict(x_test, b, w)
print('>>> Predicted Result :\n', predicted)
utils.save_scaler(max, min, scaler_path)
utils.save_model(b, w, model_path)
utils.save_ans(predicted, output_path)
############
# Train the model
############
tf.python.control_flow_ops = tf
fileJson = 'model_nvidia7' + '.json'
fileH5 = 'model_nvidia7' + '.h5'
number_of_epochs = 20
number_of_samples_per_epoch = train_batch_size * 150
number_of_validation_samples = validation_batch_size * 100
learning_rate = 1e-4
model = utils.get_model()
model.compile(
optimizer=Adam(learning_rate),
loss="mse",
)
try: #try to load the weights if previously saved
model.load_weights(fileH5)
print('Resume training from previously saved weights.')
except:
print('Training from scratch.')
pass
history = model.fit_generator(train_generator,
samples_per_epoch=number_of_samples_per_epoch,
nb_epoch=number_of_epochs,
validation_data=valid_generator,
nb_val_samples=number_of_validation_samples,
verbose=1)
utils.save_model(fileJson, fileH5)
def train():
# load data sets
train_sentences = load_sentences(FLAGS.train_file, FLAGS.lower,
FLAGS.zeros)
dev_sentences = load_sentences(FLAGS.dev_file, FLAGS.lower, FLAGS.zeros)
test_sentences = load_sentences(FLAGS.test_file, FLAGS.lower, FLAGS.zeros)
# Use selected tagging scheme (IOB / IOBES)
update_tag_scheme(train_sentences, FLAGS.tag_schema)
update_tag_scheme(test_sentences, FLAGS.tag_schema)
# create maps if not exist, load data if exists maps
if not os.path.isfile(FLAGS.map_file):
# create dictionary for word
if FLAGS.pre_emb:
dico_chars_train = char_mapping(train_sentences, FLAGS.lower)[0]
dico_chars, char_to_id, id_to_char = augment_with_pretrained(
dico_chars_train.copy(), FLAGS.emb_file,
list(
itertools.chain.from_iterable([[w[0] for w in s]
for s in test_sentences])))
else:
_c, char_to_id, id_to_char = char_mapping(train_sentences,
FLAGS.lower)
# Create a dictionary and a mapping for tags
_t, tag_to_id, id_to_tag = tag_mapping(train_sentences)
with open(FLAGS.map_file, "wb") as f:
pickle.dump([char_to_id, id_to_char, tag_to_id, id_to_tag], f)
else:
with open(FLAGS.map_file, "rb") as f:
char_to_id, id_to_char, tag_to_id, id_to_tag = pickle.load(f)
# prepare data, get a collection of list containing index
train_data = prepare_dataset(train_sentences, char_to_id, tag_to_id,
FLAGS.lower)
dev_data = prepare_dataset(dev_sentences, char_to_id, tag_to_id,
FLAGS.lower)
test_data = prepare_dataset(test_sentences, char_to_id, tag_to_id,
FLAGS.lower)
print("%i / %i / %i sentences in train / dev / test." %
(len(train_data), 0, len(test_data)))
train_manager = BatchManager(train_data, FLAGS.batch_size)
dev_manager = BatchManager(dev_data, 100)
test_manager = BatchManager(test_data, 100)
# make path for store log and model if not exist
make_path(FLAGS)
if os.path.isfile(FLAGS.config_file):
config = load_config(FLAGS.config_file)
else:
config = config_model(char_to_id, tag_to_id)
save_config(config, FLAGS.config_file)
make_path(FLAGS)
log_path = os.path.join("log", FLAGS.log_file)
logger = get_logger(log_path)
print_config(config, logger)
# 设置训练日志目录
train_log = os.path.join(FLAGS.logdir, "train")
if not os.path.exists(train_log):
os.makedirs(train_log)
# limit GPU memory
tf_config = tf.ConfigProto()
tf_config.gpu_options.allow_growth = True
steps_per_epoch = train_manager.len_data # the nums of batch data
with tf.Session(config=tf_config) as sess:
model = create_model(sess, Model, FLAGS.ckpt_path, load_word2vec,
config, id_to_char, logger)
# 观察所建立的计算图
train_writer = tf.summary.FileWriter(train_log, sess.graph)
logger.info("start training")
loss = []
dev_f1 = []
test_f1 = []
for i in range(100):
for batch in train_manager.iter_batch(shuffle=True):
step, batch_loss, merged = model.run_step(
sess, True, batch) # step是global step
# 在迭代中输出到结果
train_writer.add_summary(merged, step)
loss.append(batch_loss)
if step % FLAGS.steps_check == 0:
iteration = step // steps_per_epoch + 1
logger.info("iteration:{} step:{}/{}, "
"NER loss:{:>9.6f}".format(
iteration, step % steps_per_epoch,
steps_per_epoch, np.mean(loss)))
loss = []
# use dev data to validation the model
best, dev_f1_value = evaluate(sess, model, "dev", dev_manager,
id_to_tag, logger)
# store the dev f1
dev_f1.append(dev_f1_value)
if best:
save_model(sess, model, FLAGS.ckpt_path, logger)
# use current the model to test
_, test_f1_value = evaluate(sess, model, "test", test_manager,
id_to_tag, logger)
# store the test f1
test_f1.append(test_f1_value)
# write the dev_f1 and test_f1 to file
f1_result = {}
f1_result["dev_f1"] = dev_f1
f1_result["test_f1"] = test_f1
write_data_to_file(f1_result, "f1_result")
def train():
# load data sets
train_sentences = load_sentences(FLAGS.train_file, FLAGS.lower,
FLAGS.zeros)
dev_sentences = load_sentences(FLAGS.dev_file, FLAGS.lower, FLAGS.zeros)
test_sentences = load_sentences(FLAGS.test_file, FLAGS.lower, FLAGS.zeros)
# Use selected tagging scheme (IOB / IOBES)
#update_tag_scheme(train_sentences, FLAGS.tag_schema)
#update_tag_scheme(test_sentences, FLAGS.tag_schema)
# create maps if not exist
if not os.path.isfile(FLAGS.map_file):
# Create a dictionary and a mapping for tags
_t, tag_to_id, id_to_tag = tag_mapping(train_sentences)
with open(FLAGS.map_file, "wb") as f:
pickle.dump([tag_to_id, id_to_tag], f)
else:
with open(FLAGS.map_file, "rb") as f:
tag_to_id, id_to_tag = pickle.load(f)
# prepare data, get a collection of list containing index
train_data = prepare_dataset(train_sentences, FLAGS.max_seq_len, tag_to_id,
FLAGS.lower)
dev_data = prepare_dataset(dev_sentences, FLAGS.max_seq_len, tag_to_id,
FLAGS.lower)
test_data = prepare_dataset(test_sentences, FLAGS.max_seq_len, tag_to_id,
FLAGS.lower)
print("%i / %i / %i sentences in train / dev / test." %
(len(train_data), 0, len(test_data)))
train_manager = BatchManager(train_data, FLAGS.batch_size)
dev_manager = BatchManager(dev_data, FLAGS.batch_size)
test_manager = BatchManager(test_data, FLAGS.batch_size)
# make path for store log and model if not exist
make_path(FLAGS)
if os.path.isfile(FLAGS.config_file):
config = load_config(FLAGS.config_file)
else:
config = config_model(tag_to_id)
save_config(config, FLAGS.config_file)
make_path(FLAGS)
log_path = os.path.join("log", FLAGS.log_file)
logger = get_logger(log_path)
print_config(config, logger)
# limit GPU memory
tf_config = tf.ConfigProto()
tf_config.gpu_options.allow_growth = True
steps_per_epoch = train_manager.len_data
with tf.Session(config=tf_config) as sess:
model = create_model(sess, Model, FLAGS.ckpt_path, config, logger)
logger.info("start training")
loss = []
for i in range(100):
for batch in train_manager.iter_batch(shuffle=True):
step, batch_loss = model.run_step(sess, True, batch)
loss.append(batch_loss)
if step % FLAGS.steps_check == 0:
iteration = step // steps_per_epoch + 1
logger.info("iteration:{} step:{}/{}, "
"NER loss:{:>9.6f}".format(
iteration, step % steps_per_epoch,
steps_per_epoch, np.mean(loss)))
loss = []
best = evaluate(sess, model, "dev", dev_manager, id_to_tag, logger)
if best:
save_model(sess,
model,
FLAGS.ckpt_path,
logger,
global_steps=step)
evaluate(sess, model, "test", test_manager, id_to_tag, logger)
def train():
train_sentences, dico, char_to_id, id_to_char = load_sentence(
FLAGS.train_file)
if not os.path.isfile(FLAGS.map_file):
if FLAGS.pre_emb:
dico_chars, char_to_id, id_to_char = augment_with_pretrained(
dico.copy(),
FLAGS.emb_file,
)
else:
sentences, dico, char_to_id, id_to_char = load_sentence(
FLAGS.train_file)
print(train_sentences[0])
with open(FLAGS.map_file, 'wb') as f:
pickle.dump([char_to_id, id_to_char], f)
else:
with open(FLAGS.map_file, 'rb') as f:
char_to_id, id_to_char = pickle.load(f)
train_data, test_data, dev_data = prepare_dataset(train_sentences,
char_to_id)
print(train_data[0])
print(test_data[0])
print(dev_data[0])
print(len(train_data), len(dev_data), len(test_data))
train_manager = BatchManager(train_data, FLAGS.batch_size)
test_manager = BatchManager(test_data, 100)
dev_manager = BatchManager(dev_data, 100)
make_path(FLAGS)
if os.path.isfile(FLAGS.config_file):
config = load_config(FLAGS.config_file)
else:
config = config_model(char_to_id)
save_config(config, FLAGS.config_file)
make_path(FLAGS)
log_path = os.path.join("log", FLAGS.log_file)
logger = get_logger(log_path)
print_config(config, logger)
os.environ["CUDA_VISIBLE_DEVICES"] = "0,1,2,3"
gpu_options = tf.GPUOptions(per_process_gpu_memory_fraction=0.9)
tf_config = tf.ConfigProto(gpu_options=gpu_options)
tf_config.gpu_options.allow_growth = True
steps_per_epoch = train_manager.len_data
with tf.Session(config=tf_config) as sess:
model = create_model(sess, Model, FLAGS.ckpt_path, load_word2vec,
config, id_to_char, logger)
logger.info("start training")
loss = []
best = 0
# sess.graph.finalize()
for i in range(50):
for batch in train_manager.iter_batch(shuffle=True):
step, batch_loss = model.run_step(sess, True, batch)
loss.append(batch_loss)
if step % FLAGS.steps_check == 0:
iteration = step // steps_per_epoch + 1
logger.info("iteration:{} step:{}/{},".format(
iteration, step % steps_per_epoch, steps_per_epoch))
loss = []
Acc_result = evaluate(sess, model, "dev", dev_manager, logger)
logger.info("Acc{}".format(Acc_result))
logger.info("test")
# precision, recall, f1_score = model.evaluete_(sess,test_manager)
# logger.info("P, R, F,{},{},{}".format(precision, recall, f1_score))
test_result = evaluate(sess, model, "test", test_manager, logger)
if test_result > best:
best = test_result
save_model(sess, model, FLAGS.ckpt_path, logger)
X_hold = X_hold.squeeze(1) #batch_size,N_hold,3
#X_eval=X_eval.squeeze(1) #batch_size,N_eval,3
#extract set representation
out, _, _ = dict_model['PointNet'](X_hold.permute(
0, 2, 1)) #out: batch, 1024
set_rep = dict_model['FeatureCompression'](
out) #set_rep: batch, dim_rep
X_rec = dict_model['DecoderAE'](set_rep).reshape(P, N_hold, 3)
dist_1, dist_2 = chamfer_dist(X_hold, X_rec)
loss = (torch.mean(dist_1)) + (torch.mean(dist_2))
loss.backward()
#ut.clip_grad(lst_model,5)
optimizer.step()
pbar.set_postfix(loss='{:.2e}'.format(loss.item()))
pbar.update(1)
############################################
# save model and log result
############################################
print('*' * 20 + 'Saving models and logging results' + '*' * 20)
for model_name, model in dict_model.items():
path = dir_save_model + args.name + '_' + model_name + '.pkl'
ut.save_model(model, path)
lst_result = [args.ind, args.name, '{:.2e}'.format(loss.item())]
ut.write_list_to_csv(lst_result, dir_log)
def main(args):
paddle.seed(12345)
config = load_yaml(args.config_yaml)
use_gpu = config.get("dygraph.use_gpu", False)
train_data_dir = config.get("dygraph.train_data_dir", None)
epochs = config.get("dygraph.epochs", None)
print_interval = config.get("dygraph.print_interval", None)
model_save_path = config.get("dygraph.model_save_path", "model_output")
batch_size = config.get('dygraph.batch_size_train', None)
margin = config.get('hyper_parameters.margin', 0.1)
query_len = config.get('hyper_parameters.query_len', 79)
pos_len = config.get('hyper_parameters.pos_len', 99)
neg_len = config.get('hyper_parameters.neg_len', 90)
print("***********************************")
logger.info(
"use_gpu: {}, train_data_dir: {}, epochs: {}, print_interval: {}, model_save_path: {}"
.format(use_gpu, train_data_dir, epochs, print_interval,
model_save_path))
print("***********************************")
place = paddle.set_device('gpu' if use_gpu else 'cpu')
simnet_model = create_model(config)
model_init_path = config.get("dygraph.model_init_path", None)
if model_init_path is not None:
load_model(model_init_path, simnet_model)
# to do : add optimizer function
learning_rate = config.get("hyper_parameters.optimizer.learning_rate",
0.001)
optimizer = paddle.optimizer.Adam(learning_rate=learning_rate,
parameters=simnet_model.parameters())
# to do init model
file_list = [
os.path.join(train_data_dir, x) for x in os.listdir(train_data_dir)
]
print("read data")
dataset = BQDataset(file_list)
train_dataloader = create_data_loader(dataset, place=place, config=config)
last_epoch_id = config.get("last_epoch", -1)
for epoch_id in range(last_epoch_id + 1, epochs):
# set train mode
simnet_model.train()
epoch_begin = time.time()
interval_begin = time.time()
train_reader_cost = 0.0
train_run_cost = 0.0
total_samples = 0
reader_start = time.time()
for batch_id, batch in enumerate(train_dataloader()):
train_reader_cost += time.time() - reader_start
optimizer.clear_grad()
train_start = time.time()
batch_size = batch_size
inputs = create_feeds(batch, query_len, pos_len, neg_len)
cos_pos, cos_neg = simnet_model(inputs, False)
loss = create_loss(batch_size, margin, cos_pos, cos_neg)
acc = get_acc(cos_neg, cos_pos, batch_size)
loss.backward()
optimizer.step()
train_run_cost += time.time() - train_start
total_samples += batch_size
if batch_id % print_interval == 0:
logger.info(
"epoch: {}, batch_id: {}, acc: {}, loss: {}, avg_reader_cost: {:.5f} sec, avg_batch_cost: {:.5f} sec, avg_samples: {:.5f}, ips: {:.5f} images/sec"
.format(
epoch_id, batch_id, acc.numpy(), loss.numpy(),
train_reader_cost / print_interval,
(train_reader_cost + train_run_cost) / print_interval,
total_samples / print_interval,
total_samples / (train_reader_cost + train_run_cost)))
train_reader_cost = 0.0
train_run_cost = 0.0
total_samples = 0
reader_start = time.time()
logger.info(
"epoch: {} done, acc: {}, loss: {}, : epoch time{:.2f} s".format(
epoch_id, acc.numpy(), loss.numpy(),
time.time() - epoch_begin))
save_model(simnet_model,
optimizer,
model_save_path,
epoch_id,
prefix='rec')
vae.get_layer('encoder').predict(input_images)[0])
plot_image(img_renorm(input_images), img_renorm(rec_images))
# selected_pm_layers = ['Conv2d_1a_3x3','Conv2d_3b_1x1', 'Conv2d_4b_3x3', 'add_5', 'add_15', 'add_21', 'Bottleneck']
# selected for calculating the perceptual loss.
selected_pm_layers = [
'Conv2d_1a_3x3', 'Conv2d_2b_3x3', 'Conv2d_4a_3x3', 'Conv2d_4b_3x3',
'Bottleneck'
]
vae_dfc = train(selected_pm_layers,
alpha=1,
latent_dim=1024,
learning_rate=0.00033)
save_model(vae_dfc, 'face-vae' + str(time.time()))
#vae_dfc = load_model('face-vae-final')
test_vae(vae_dfc)
'''
vae_dfc = train(selected_pm_layers, alpha = 1, latent_dim = 1024)
save_model(vae_dfc, 'face-vae' + str(time.time()))
test_vae(vae_dfc)
vae_dfc = train(selected_pm_layers)
save_model(vae_dfc, 'face-vae' + str(time.time()))
test_vae(vae_dfc)
def main():
parser = argparse.ArgumentParser(description="-----[CNN-classifier]-----")
parser.add_argument(
"--mode",
default="train",
help="train: train (with test) a model / test: test saved models")
parser.add_argument(
"--model",
default="rand",
help="available models: rand, static, non-static, multichannel")
parser.add_argument(
"--datafile",
default="None",
help=
"data file base to read in different datset (needs training, valid, and test files)"
)
parser.add_argument("--dataset",
default="TREC",
help="available datasets: MR, TREC")
parser.add_argument("--save_model",
default=False,
action='store_true',
help="whether saving model or not")
parser.add_argument("--early_stopping",
default=False,
action='store_true',
help="whether to apply early stopping")
parser.add_argument("--epoch",
default=100,
type=int,
help="number of max epoch")
parser.add_argument("--learning_rate",
default=1.0,
type=float,
help="learning rate")
parser.add_argument("--gpu",
default=-1,
type=int,
help="the number of gpu to be used")
parser.add_argument("--cands",
default="None",
help="candidate outputs file")
parser.add_argument("--outfile",
default="None",
help="output file to write complexity predictions to")
options = parser.parse_args()
if options.datafile == "None":
data = getattr(utils, f"read_{options.dataset}")()
else:
data = utils.read_other(options.datafile)
# data["vocab"] = sorted(list(set([w for sent in data["train_x"] + data["dev_x"] + data["test_x"] for w in sent])))
data["vocab"] = sorted(
list(set([w for sent in data["train_x"] for w in sent])))
# data["classes"] = sorted(list(set(data["train_y"])))
data["word_to_idx"] = {w: i for i, w in enumerate(data["vocab"])}
data["idx_to_word"] = {i: w for i, w in enumerate(data["vocab"])}
params = {
"MODEL":
options.model,
"DATASET":
options.dataset,
"DATAFILE":
options.datafile,
"SAVE_MODEL":
options.save_model,
"EARLY_STOPPING":
options.early_stopping,
"EPOCH":
options.epoch,
"LEARNING_RATE":
options.learning_rate,
"MAX_SENT_LEN":
max([
len(sent)
for sent in data["train_x"] + data["dev_x"] + data["test_x"]
]),
"BATCH_SIZE":
50,
"WORD_DIM":
300,
"VOCAB_SIZE":
len(data["vocab"]),
# "CLASS_SIZE": len(data["classes"]),
"FILTERS": [3, 4, 5],
"FILTER_NUM": [100, 100, 100],
"DROPOUT_PROB":
0.5,
"NORM_LIMIT":
3,
"GPU":
options.gpu,
"OUTFILE":
options.outfile
}
print("=" * 20 + "INFORMATION" + "=" * 20)
print("MODEL:", params["MODEL"])
if options.datafile == "None":
print("DATASET:", params["DATASET"])
else:
print("DATAFILE:", params["DATAFILE"])
print("VOCAB_SIZE:", params["VOCAB_SIZE"])
print("EPOCH:", params["EPOCH"])
print("LEARNING_RATE:", params["LEARNING_RATE"])
print("EARLY_STOPPING:", params["EARLY_STOPPING"])
print("SAVE_MODEL:", params["SAVE_MODEL"])
print("=" * 20 + "INFORMATION" + "=" * 20)
if options.mode == "train":
print("=" * 20 + "TRAINING STARTED" + "=" * 20)
model = train(data, params)
if params["SAVE_MODEL"]:
utils.save_model(model, params)
print("=" * 20 + "TRAINING FINISHED" + "=" * 20)
else:
candidates_file = options.cands
model = utils.load_model(params).cuda(params["GPU"])
preds = get_preds(candidates_file, data, model, params)
print(preds[0])
print(len(preds))
print(len(preds[0]))
with open(options.outfile, 'w', encoding='utf8') as f:
for ps in preds:
f.write("\t".join([str(p) for p in ps]) + "\n")
def train_model(args):
model = Model(node_embeddings, args.node_out_dim)
if CUDA:
model.cuda()
if args.is_test:
model.load_state_dict(
torch.load('./checkpoints/{0}/trained_{1}.pth'.format(
args.data, args.test_check)))
get_test_score(model)
return
# NN = getL()
optimizer = torch.optim.Adam(model.parameters(),
lr=args.lr,
weight_decay=args.weight_decay)
scheduler = torch.optim.lr_scheduler.StepLR(optimizer,
step_size=1000,
gamma=0.5,
last_epoch=-1)
# gat_loss_func = torch.nn.BCEWithLogitsLoss()
gat_loss_func = torch.nn.MSELoss()
epoch_losses = [] # losses of all epochs
print("Number of epochs {}".format(args.epochs))
model.train()
for epoch in range(args.epochs + 1):
# print("\nepoch-> ", epoch)
# print("Training set shuffled, length is ", Corpus_.train_indices.shape)
random.shuffle(Corpus_.train_edge_data)
random.shuffle(Corpus_.train_neg_data)
Corpus_.train_indices = np.array(list(Corpus_.train_edge_data)).astype(
np.int32)
Corpus_.train_neg_indices = np.array(list(
Corpus_.train_neg_data)).astype(np.int32)
start_time = time.time()
epoch_loss = []
if Corpus_.num_nodes % 500 == 0:
num_iters_per_epoch = Corpus_.num_nodes // 500
else:
num_iters_per_epoch = (Corpus_.num_nodes // 500) + 1
for iters in range(num_iters_per_epoch):
start_time_iter = time.time()
train_indices, train_indices_neg = Corpus_.get_iteration_batch(0)
if CUDA:
train_indices = Variable(
torch.LongTensor(train_indices)).cuda()
train_indices_neg = Variable(
torch.LongTensor(train_indices_neg)).cuda()
else:
train_indices = Variable(torch.LongTensor(train_indices))
optimizer.zero_grad()
node_embeds = model()
loss = batch_gat_loss(gat_loss_func, train_indices,
train_indices_neg, node_embeds)
if SP_LOSS == True:
neighbor_spectrum_loss = get_neighbor_spectrum_loss(iters, Corpus_.neighbors, \
Corpus_.neighbors_count, node_embeds, num_iters_per_epoch)
(loss +
float(args.regterm) * neighbor_spectrum_loss).backward()
else:
loss.backward()
optimizer.step()
epoch_loss.append(loss.data.item())
end_time_iter = time.time()
# print("Iteration-> {0} , Iteration_time-> {1:.4f} , Iteration_loss {2:.4f}".format(
# iters, end_time_iter - start_time_iter, loss.data.item()))
scheduler.step()
# if epoch % 100 == 0:
print("Epoch {} , average loss {} , epoch_time {}\n".format(
epoch,
sum(epoch_loss) / len(epoch_loss),
time.time() - start_time))
epoch_losses.append(sum(epoch_loss) / len(epoch_loss))
if epoch > 0 and epoch % 100 == 0:
save_model(model, epoch, args.data)
model.load_state_dict(
torch.load('./checkpoints/{0}/trained_{1}.pth'.format(
args.data, args.epochs)))
get_test_score(model)
adam = Adam(lr=1e-4, beta_1=0.9, beta_2=0.999, epsilon=1e-08)
model.compile(optimizer=adam, loss='mse')
#validation data generation
valid_gen = utils.validation_generator(df)
for iteration in range(iterations):
train_gen = utils.train_generator(df, batch_size)
history = model.fit_generator(train_gen,
samples_per_epoch=256 * 79,
nb_epoch=1,
validation_data=valid_gen,
nb_val_samples=len(df))
utils.save_model('model_' + str(iteration) + '.json',
'model_' + str(iteration) + '.h5', model)
val_loss = history.history['val_loss'][0]
if val_loss < val_best:
best_model = iteration
val_best = val_loss
utils.save_model('model.json', 'model.h5', model)
pr_threshold = 1 / (iteration + 1)
print('Best model found at iteration # ' + str(best_model))
print('Best Validation score : ' + str(np.round(val_best, 4)))
gc.collect()
def train(model, train_dataloader, val_dataloader, criterion, optimizer,
scheduler, device, writer, args):
total_data = len(train_dataloader.dataset)
iterations_per_epoch = np.floor(total_data / args.batch_size)
epochs = int(np.floor(args.iterations / iterations_per_epoch))
steps = 0
stop = False
best_loss = np.inf
best_error = np.inf
for epoch in tqdm(range(epochs), leave=False, desc='training'):
model.train()
for imgs, labels in train_dataloader:
imgs, labels = imgs.to(device), labels.to(device)
optimizer.zero_grad()
outputs = model(imgs)
train_loss = criterion(outputs, labels)
train_loss.backward()
optimizer.step()
scheduler.step(steps)
writer.add_scalar('train loss', train_loss.item(), steps)
writer.add_scalar('lr', optimizer.param_groups[0]['lr'], steps)
if hasattr(model, 'norm'):
if steps % args.recode_norm == 0:
writer.add_scalar('norm', model.norm, steps)
if hasattr(model, 'transform'):
if steps % args.record_image == 0:
ori_imgs = imgs[:10] # (10, 1, W, H)
aug_imgs = model.transform(ori_imgs) # (10, 1, H, W)
all_imgs = torch.cat((ori_imgs, aug_imgs),
dim=0) # (20, 1, H, W)
all_imgs = make_grid(all_imgs, nrow=10) # (3, H, W)
writer.add_image('Original / Transformed', all_imgs, steps)
steps += 1
if steps == args.iterations:
stop = True
break
val_loss, val_error = evaluate(model, val_dataloader, criterion,
device, writer, args, epoch)
print('Epoch {:2d}: val loss = {:.4f}, val error = {:.4f}'.format(
epoch, val_loss, val_error))
if best_loss > val_loss or best_error > val_error:
best_loss = val_loss if best_loss > val_loss else best_loss
best_error = val_error if best_error > val_error else best_error
save_model(model, args, MODELS_DIR)
if stop:
print('training done!')
break
model = load_model(model, args, MODELS_DIR)
return model
def hook(model):
eva.assess(model)
save_model(model, "./model/model_%s_%i.pkl" % (mdname, model.current))
def train(net, train_data_loader, test_data_loader,device,num_epochs=10):
args = get_args()
net.to(device)
batch_size = train_data_loader.batch_size
if args.target_mode == 'cont':
criterion = nn.MSELoss()
else:
class_weights = _get_class_weights(train_data_loader.dataset.get_labels_hisotgram())
class_weights = torch.from_numpy(class_weights).float().to(device)
criterion = nn.CrossEntropyLoss(ignore_index=0, weight=class_weights)
# criterion = nn.CrossEntropyLoss(ignore_index=0)
optimizer = optim.Adam(net.parameters(), lr=LR0)
optimizer.zero_grad()
net.zero_grad()
train_epochs_loss = []
val_epochs_loss = []
train_steps_per_e = len(train_data_loader.dataset) // batch_size
val_steps_per_e = len(test_data_loader.dataset) // batch_size
best_loss = 1e5
for e in range(num_epochs):
print ("Epoch: ", e)
net = net.train()
val_loss_sum = 0.
train_loss_sum = 0
for i, data in enumerate(train_data_loader):
x,_,y,_ = data
x = x.to(device)
y = y.to(device)
out = net(x)
optimizer.zero_grad()
loss = criterion(out, y)
loss.backward()
optimizer.step()
if i%10 == 0:
print('Step: {:3} / {:3} Train loss: {:3.3}'.format(i, train_steps_per_e,loss.item()))
# _show_examples(x, y, out, num_of_examples=1)
train_loss_sum += loss.item()
train_epochs_loss += [train_loss_sum / train_steps_per_e]
conf_mat = torch.zeros((16, 16), dtype=torch.long)
net = net.eval()
for i, val_data in enumerate(test_data_loader):
x,_,y,_ = val_data
x, y = x.to(device), y.to(device)
with torch.no_grad():
out = net(x)
loss = criterion(out, y)
val_loss_sum += loss.item()
conf_mat = _conf_matrix(out,y,conf_mat)
val_epochs_loss += [val_loss_sum / val_steps_per_e]
# _show_examples(x,y,out,num_of_examples=1)
if val_epochs_loss[-1] < best_loss:
print ("Saving Model")
save_model(net, epoch=e, experiment_name=get_args().experiment_name)
print (conf_mat)
best_loss = val_epochs_loss[-1]
acc, acc_top3 = _acc(conf_mat)
print("\nepoch {:3} Train Loss: {:1.5} Val loss: {:1.5} Acc: {:1.5} Top3 Acc: {:1.5}".format(e, train_epochs_loss[-1],
val_epochs_loss[-1], acc, acc_top3))
return train_epochs_loss, val_epochs_loss
utils.load_model(
args.name,
args.modality2 + 'net_instance_' + str(args.instance) + '.pth.tar'),
'stream2')
stream1Dict.update(stream2Dict)
state = model.state_dict()
state.update(stream1Dict)
model.load_state_dict(state)
model.to(device)
criterion = torch.nn.CrossEntropyLoss()
optimizer = torch.optim.Adam(model.parameters(), lr=args.learningRate)
# Training and Inference
print('Training Two Stream (' + args.modality1 + '-' + args.modality2 +
') Network...')
bestAcc = 0
for epoch in tqdm(range(args.nEpochs)):
engine.twoStreamTrain(model, trainLoader, optimizer, criterion, device,
plotter, epoch)
accuracy, classWiseAcc = engine.twoStreamValidate(model, valLoader,
criterion, device,
plotter, epoch)
if accuracy > bestAcc:
utils.save_model({'stateDict': model.state_dict()}, args.name,
'twoStreamNet_' + args.modality1 + '-' +
args.modality2 + '_instance_' + str(args.instance) +
'.pth.tar')
bestAcc = accuracy
print('Best Accuracy: ' + str(bestAcc))
# print('Classwise Accuracy: '+str(classWiseAcc))
def train(self):
# load data sets
train_sentences = load_sentences(self.train_file, self.lower,
self.zeros)
dev_sentences = load_sentences(self.dev_file, self.lower, self.zeros)
test_sentences = load_sentences(self.test_file, self.lower, self.zeros)
# Use selected tagging scheme (IOB / IOBES)
update_tag_scheme(train_sentences, self.tag_schema)
update_tag_scheme(test_sentences, self.tag_schema)
# create maps if not exist
if not os.path.isfile(self.map_file):
# create dictionary for word
if self.pre_emb:
dico_chars_train = char_mapping(train_sentences, self.lower)[0]
dico_chars, char_to_id, id_to_char = augment_with_pretrained(
dico_chars_train.copy(), self.emb_file,
list(
itertools.chain.from_iterable([[w[0] for w in s]
for s in test_sentences
])))
else:
_c, char_to_id, id_to_char = char_mapping(
train_sentences, self.lower)
# Create a dictionary and a mapping for tags
_t, tag_to_id, id_to_tag = tag_mapping(train_sentences)
with open(self.map_file, "wb") as f:
pickle.dump([char_to_id, id_to_char, tag_to_id, id_to_tag], f)
else:
with open(self.map_file, "rb") as f:
char_to_id, id_to_char, tag_to_id, id_to_tag = pickle.load(f)
# prepare data, get a collection of list containing index
train_data = prepare_dataset(train_sentences, char_to_id, tag_to_id,
self.lower)
dev_data = prepare_dataset(dev_sentences, char_to_id, tag_to_id,
self.lower)
test_data = prepare_dataset(test_sentences, char_to_id, tag_to_id,
self.lower)
print("%i / %i / %i sentences in train / dev / test." %
(len(train_data), 0, len(test_data)))
train_manager = BatchManager(train_data, self.batch_size)
dev_manager = BatchManager(dev_data, 100)
test_manager = BatchManager(test_data, 100)
# make path for store log and model if not exist
# make_path(FLAGS)
if os.path.isfile(self.config_file):
config = load_config(self.config_file)
else:
config = self.config_model(char_to_id, tag_to_id)
save_config(config, self.config_file)
log_path = os.path.join("log", self.log_file)
logger = get_logger(log_path)
print_config(config, logger)
# limit GPU memory
tf_config = tf.ConfigProto()
tf_config.gpu_options.allow_growth = True
steps_per_epoch = train_manager.len_data
with tf.Session(config=tf_config) as sess:
model = create_model(sess, Model, self.ckpt_path, load_word2vec,
config, id_to_char, logger)
logger.info("start training")
loss = []
for i in range(100):
for batch in train_manager.iter_batch(shuffle=True):
step, batch_loss = model.run_step(sess, True, batch)
loss.append(batch_loss)
if step % self.steps_check == 0:
iteration = step // steps_per_epoch + 1
logger.info("iteration:{} step:{}/{}, "
"NER loss:{:>9.6f}".format(
iteration, step % steps_per_epoch,
steps_per_epoch, np.mean(loss)))
loss = []
best = self.evaluate(sess, model, "dev", dev_manager,
id_to_tag, logger)
if best:
save_model(sess, model, self.ckpt_path, logger)
self.evaluate(sess, model, "test", test_manager, id_to_tag,
logger)
def train(train_index, test_index,locations,data,wsize,nb_epoch = 50,batch_size = 50,neurons_full_layer = 100):
n,m = data.shape
print len(train_index),len(test_index)
n_training = len(train_index)
n_testing = len(test_index)
nwsize = wsize*2+1
model = make_model_2(m, nwsize[0], nwsize[1],nwsize[2],neurons_full_layer)
X_training = None
y_training = None
X_testing = None
y_testing = None
if os.path.exists("X_training.npy"):
X_training = np.load("X_training.npy")
if os.path.exists("y_training.npy"):
y_training = np.load("y_training.npy")
if os.path.exists("X_testing.npy"):
X_testing = np.load("X_testing.npy")
if os.path.exists("y_testing.npy"):
y_testing = np.load("y_testing.npy")
if X_training is None:
X_training = np.empty((n_training,m,nwsize[0],nwsize[1],nwsize[2]))
y_training = np.empty((n_training,m))
X_testing = np.empty((n_testing,m,nwsize[0],nwsize[1],nwsize[2]))
y_testing = np.empty((n_testing,m))
kdtree = cKDTree(locations)
k = 1000
print "processing training data"
for i,index in enumerate(train_index):
location = locations[index]
image = preprocess.create_image_from_neighbours_3d(location,locations,data,k,kdtree,(wsize[0],wsize[1],wsize[2]),(10.0,10.0,10.0),distance=np.inf)
X_training[i,:,:,:,:] = image
y_training[i,:] = data[index,:]
print "processing testing data"
for i,index in enumerate(test_index):
location = locations[index]
image = preprocess.create_image_from_neighbours_3d(location,locations,data,k,kdtree,(wsize[0],wsize[1],wsize[2]),(10.0,10.0,10.0),distance=np.inf)
X_testing[i,:,:,:,:] = image
y_testing[i,:] = data[index,:]
np.save("X_training",X_training)
np.save("y_training",y_training)
np.save("X_testing",X_testing)
np.save("y_testing",y_testing)
else:
pass
history = model.fit(X_training, y_training,
batch_size=batch_size, nb_epoch=nb_epoch,
verbose=1, validation_data=(X_testing, y_testing))
utils.save_model(model,"muestras-model-cnn")
score = model.predict(X_testing)
print np.mean(y_testing[:,0])
print np.mean(score[:,0])
print np.std(y_testing[:,0])
print np.std(score[:,0])
print "r2", sklearn.metrics.r2_score(score, y_testing)
# Setup hidden layers
model.add(
Dense(6, activation='relu', kernel_initializer='uniform',
input_dim=11))
model.add(Dense(6, activation='relu', kernel_initializer='uniform'))
model.add(Dense(1, activation='sigmoid', kernel_initializer='uniform'))
# Compile the model with given optimizer and loss function
model.compile(optimizer=optimizer, loss=loss, metrics=['accuracy'])
return model
if __name__ == "__main__":
scaler = StandardScaler()
X, y = read_data()
X_train, X_test, y_train, y_test = split_and_normalize(X, y, scaler)
classifier = build_classifier()
history = classifier.fit(x=X_train, y=y_train, batch_size=10, epochs=100)
save_model(classifier, scaler, "models", prefix="v1")
plot_history(history)
y_pred_train = classifier.predict(X_train) > 0.5
y_pred_test = classifier.predict(X_test) > 0.5
acc_train = accuracy(y_train, y_pred_train) * 100
acc_test = accuracy(y_test, y_pred_test) * 100
print("Accuracy (train): {}%".format(str(acc_train)))
print("Accuracy (test) : {}%".format(str(acc_test)))
print("Dividing data...")
data = prepare_data.PrepareData(maximum_path_length, test_share)
train_data, train_labels, test_data, test_labels, data_dictionary, reverse_dictionary, class_weights, train_sample_weights, usage_pred = data.get_data_labels_matrices(
workflow_paths, frequency_paths, tool_usage_path, cutoff_date)
# find the best model and start training
predict_tool = PredictTool()
# start training with weighted classes
print("Training with weighted classes and samples ...")
results_weighted = predict_tool.find_train_best_network(
config, optimise_parameters_node, reverse_dictionary, train_data,
train_labels, test_data, test_labels, val_share, n_epochs,
class_weights, usage_pred, train_sample_weights, compatible_next_tools,
hyperparameter_optimize)
utils.save_model(results_weighted, data_dictionary, compatible_next_tools,
trained_model_path)
# print loss and precision
print()
print("Training loss")
print(results_weighted["train_loss"])
print()
print("Validation loss")
print(results_weighted["validation_loss"])
print()
print("Test absolute precision")
print(results_weighted["test_absolute_precision"])
print()
print("Test compatible precision")
print(results_weighted["test_compatible_precision"])
print()
def test_mlp(learning_rate=0.01, L2_reg=0.00000001, n_epochs=200,
dataset='theano.classifier.data', batch_size=10000, max_iter = 5000, output='theano.model.out', validation_freq = 100):
"""
Demonstrate stochastic gradient descent optimization for a multilayer
perceptron
This is demonstrated on MNIST.
:type learning_rate: float
:param learning_rate: learning rate used (factor for the stochastic
gradient
:type L2_reg: float
:param L2_reg: L2-norm's weight when added to the cost (see
regularization)
:type n_epochs: int
:param n_epochs: maximal number of epochs to run the optimizer
:type dataset: string
:param dataset: the path to the theano.classifier.data
"""
print (" Learning with params : ")
print (" Learning rate : " + str(learn_rate));
print (" Regularlization params : " + str(L2_reg))
print (" Batch size : " + str(batch_size))
print (" Max Iter : " + str(max_iter))
print (" Epochs : " + str(n_epochs))
print (" Evaluation frequency : " + str(validation_freq))
print ('... loading data ')
datasets = load_data(dataset)
train_set_x, train_set_y = datasets[0]
valid_set_x, valid_set_y = datasets[1]
E = datasets[2]
W1 = datasets[3]
B1 = datasets[4]
W2 = datasets[5]
# compute number of minibatches for training, validation and testing
n_train_batches = train_set_x.owner.inputs[0].get_value(borrow=True).shape[0] / batch_size
n_valid_batches = valid_set_x.owner.inputs[0].get_value(borrow=True).shape[0] / batch_size
print 'Training batches : ' + str(n_train_batches)
print 'Valid batches : ' + str(n_valid_batches)
######################
# BUILD ACTUAL MODEL #
######################
print '... building the model'
# allocate symbolic variables for the data
index = T.lscalar() # index to a [mini]batch
x = T.imatrix('x') # the data is presented as rasterized images
y = T.ivector('y') # the labels are presented as 1D vector of
# [int] labels
rng = numpy.random.RandomState(1234)
# construct the MLP class
classifier = MLP(rng,
input=x,
E=E,
W1=W1,
B1=B1,
W2 = W2,
)
train_errors = (classifier.errors(y))
cost = (
classifier.negative_log_likelihood(y)
+ L2_reg * classifier.L2_sqr
)
# end-snippet-4
# compiling a Theano function that computes the mistakes that are made
# by the model on a minibatch
validate_model = theano.function(
inputs=[index],
outputs=classifier.errors(y),
givens={
x: valid_set_x[index * batch_size:(index + 1) * batch_size],
y: valid_set_y[index * batch_size:(index + 1) * batch_size]
}
)
# compute the gradient of cost with respect to theta
gparams = [T.grad(cost, param) for param in classifier.params]
# specify how to update the parameters of the model as a list of
# (variable, update expression) pairs
updates = [
(param, param - learning_rate * gparam)
for param, gparam in zip(classifier.params, gparams)
]
# compiling a Theano function `train_model` that returns the cost, but
# in the same time updates the parameter of the model based on the rules
# defined in `updates`
train_model = theano.function(
inputs=[index],
outputs=(cost, train_errors),
updates=updates,
givens={
x: train_set_x[index * batch_size: (index + 1) * batch_size], # x,y here is symbolic variable
y: train_set_y[index * batch_size: (index + 1) * batch_size],
}
)
# end-snippet-5
###############
# TRAIN MODEL #
###############
print '... training (using drop-out = 0.5)'
# early-stopping parameters
patience = 100000 # Long Duong : At least have to went through this much examples
patience_increase = 2 # wait this much longer when a new best is found
improvement_threshold = 0.995 # a relative improvement of this much is
# considered significant
#validation_frequency = min(n_train_batches, patience / 2)
# go through this many
# minibatche before checking the network
# on the validation set; in this case we
# check every epoch
validation_frequency = validation_freq
######## FOR TESTING ONLY ##################
#validation_frequency = 5
#n_train_batches = 10
#n_epochs = 1
######################################
best_validation_loss = numpy.inf
best_iter = 0
test_score = 0.
start_time = time.clock()
epoch = 0
done_looping = False
while (epoch < n_epochs) and (not done_looping):
epoch = epoch + 1
for minibatch_index in xrange(n_train_batches):
(minibatch_avg_cost, minibatch_avg_error) = train_model(minibatch_index)
# iteration number
iter = (epoch - 1) * n_train_batches + minibatch_index
print (' Iteration : ' + str(iter) + ' with Cost = ' + str(minibatch_avg_cost) + ' with errors = ' + str(minibatch_avg_error))
# Long Duong : since in each epoch => n_train_batches has covered
# iter : is the number of update for the parameters (~ number of batches considered)
if (iter + 1) % validation_frequency == 0:
# compute zero-one loss on validation set
validation_losses = [validate_model(i) for i
in xrange(n_valid_batches)]
this_validation_loss = numpy.mean(validation_losses)
print(
'epoch %i, minibatch %i/%i, validation error %f %%' %
(
epoch,
minibatch_index + 1,
n_train_batches,
this_validation_loss * 100.
)
)
# if we got the best validation score until now
if this_validation_loss < best_validation_loss:
#improve patience if loss improvement is good enough
if (this_validation_loss < best_validation_loss * improvement_threshold):
# Long Duong : this is the key : need iter to get this good result => Waiting this much iter to expect
# other better result ....
patience = max(patience, iter * patience_increase)
best_validation_loss = this_validation_loss
best_iter = iter
# Save the model (especially for dropout model)
save_model(output,classifier.embeddingLayer.E.get_value(),
classifier.hiddenLayer.W.get_value().T,
classifier.hiddenLayer.b.get_value(),
classifier.logRegressionLayer.W.get_value().T)
# Long Duong : add max_iter criterion
if (patience <= iter) or (iter > max_iter) :
done_looping = True
break
end_time = time.clock()
print(('Optimization complete. Best validation score of %f %% '
'obtained at iteration %i') %
(best_validation_loss * 100., best_iter + 1))
print >> sys.stderr, ('The code for file ' +
os.path.split(__file__)[1] +
' ran for %.2fm' % ((end_time - start_time) / 60.))
def main(args):
if not check_exists(args.save_dir):
os.makedirs(args.save_dir)
dataset = IQiYiFineTuneSceneDataset(args.data_root,
'train+val-noise',
image_root='/home/dcq/img')
data_loader = DataLoader(dataset,
batch_size=args.batch_size,
shuffle=True,
num_workers=4)
log_step = len(data_loader) // 10 if len(data_loader) > 10 else 1
model = ArcFaceSEResNeXtModel(args.num_classes, include_top=True)
metric_func = ArcMarginProduct()
loss_func = FocalLoss(gamma=2.)
trainable_params = [
{
'params': model.base_model.parameters(),
"lr": args.learning_rate / 100
},
{
'params': model.weight
},
]
optimizer = optim.SGD(trainable_params,
lr=args.learning_rate,
momentum=0.9,
weight_decay=1e-5)
lr_scheduler = torch.optim.lr_scheduler.CosineAnnealingLR(
optimizer, args.epoch)
device, device_ids = prepare_device()
model = model.to(device)
if len(device_ids) > 1:
model = torch.nn.DataParallel(model, device_ids=device_ids)
for epoch_idx in range(args.epoch):
total_loss = .0
for batch_idx, (images, labels, _) in enumerate(data_loader):
images = images.view(-1, *images.size()[-3:])
images = images.to(device)
labels = labels.to(device)
optimizer.zero_grad()
outputs = model(images)
outputs = outputs.view(outputs.size(0) // 3, 3, -1)
outputs = torch.mean(outputs, dim=1)
outputs_metric = metric_func(outputs, labels)
local_loss = loss_func(outputs_metric, labels)
local_loss.backward()
optimizer.step()
total_loss += local_loss.item()
if batch_idx % log_step == 0 and batch_idx != 0:
print('Epoch: {} [{}/{} ({:.0f}%)] Loss: {:.6f}'.format(
epoch_idx, batch_idx * args.batch_size, len(dataset),
100.0 * batch_idx / len(data_loader), local_loss.item()))
log = {
'epoch': epoch_idx,
'lr': optimizer.param_groups[0]['lr'],
'loss': total_loss / len(data_loader)
}
for key, value in sorted(log.items(), key=lambda item: item[0]):
print(' {:20s}: {:6f}'.format(str(key), value))
lr_scheduler.step()
save_model(model.module, args.save_dir, 'demo_arcface_fine_tune_model',
args.epoch)
def train_model(model, data_loader, params):
# data loader
train_loader, val_loader, test_loader = data_loader['train'], data_loader[
'devel'], data_loader['test']
# criterion
if params.loss == 'ccc':
criterion = utils.CCCLoss()
elif params.loss == 'mse':
criterion = utils.MSELoss()
elif params.loss == 'l1':
criterion = utils.L1Loss()
elif params.loss == 'tilted':
criterion = utils.TiltedLoss()
elif params.loss == 'tiltedCCC':
criterion = utils.TiltedCCCLoss()
elif params.loss == 'cwCCC':
criterion = utils.CCCLossWithStd()
else:
raise Exception(f'Not supported loss "{params.loss}".')
# optimizer
optimizer = optim.Adam(model.parameters(),
lr=params.lr,
weight_decay=params.l2_penalty)
# lr scheduler
if params.lr_scheduler == 'step':
lr_scheduler = optim.lr_scheduler.StepLR(optimizer=optimizer,
step_size=params.lr_patience,
gamma=params.lr_factor)
else:
lr_scheduler = optim.lr_scheduler.ReduceLROnPlateau(
optimizer=optimizer,
mode='min',
patience=params.lr_patience,
factor=params.lr_factor,
min_lr=params.min_lr,
verbose=True if params.log_extensive else False)
# train
best_val_loss = float('inf')
best_val_ccc, best_val_pcc, best_val_rmse = [], [], []
best_mean_val_ccc = -1
best_model_file = ''
early_stop = 0
for epoch in range(1, params.epochs + 1):
################################
if params.uncertainty_approach == 'cw_ccc':
train_loss = train_with_std(model, train_loader, criterion,
optimizer, epoch, params)
else:
train_loss = train(model, train_loader, criterion, optimizer,
epoch, params)
################################
if params.uncertainty_approach == "quantile_regression":
val_loss, val_ccc, val_pcc, val_rmse = validate_quantile_regression(
model, val_loader, criterion, params)
elif params.uncertainty_approach == 'cw_ccc':
val_loss, val_ccc, val_pcc, val_rmse = validate_std(
model, val_loader, criterion, params)
else:
val_loss, val_ccc, val_pcc, val_rmse = validate(
model, val_loader, criterion, params)
################################
mean_val_ccc, mean_val_pcc, mean_val_rmse = np.mean(val_ccc), np.mean(
val_pcc), np.mean(val_rmse)
if params.log_extensive:
print('-' * 50)
print(f'Epoch:{epoch:>3} | [Train] | Loss: {train_loss:>.4f}')
print(
f'Epoch:{epoch:>3} | [Val] | Loss: {val_loss:>.4f} | '
f'[CCC]: {mean_val_ccc:>7.4f} {[format(x, "7.4f") for x in val_ccc]} | '
f'PCC: {mean_val_pcc:>.4f} {[format(x, ".4f") for x in val_pcc]} | '
f'RMSE: {mean_val_rmse:>.4f} {[format(x, ".4f") for x in val_rmse]}'
)
if mean_val_ccc > best_mean_val_ccc:
best_val_ccc = val_ccc
best_mean_val_ccc = np.mean(best_val_ccc)
best_model_file = utils.save_model(model, params)
if params.log_extensive:
print(
f'Epoch:{epoch:>3} | Save best model "{best_model_file}"!')
best_val_loss, best_val_pcc, best_val_rmse = val_loss, val_pcc, val_rmse # Note: loss, pcc and rmse when get best val ccc
early_stop = 0
else:
early_stop += 1
if early_stop >= params.early_stop:
print(
f'Note: target can not be optimized for {params.early_stop}'
f' consecutive epochs, early stop the training process!')
break
if params.lr_scheduler == 'step':
lr_scheduler.step()
else:
lr_scheduler.step(1 - np.mean(val_ccc))
best_mean_val_pcc, best_mean_val_rmse = np.mean(best_val_pcc), np.mean(
best_val_rmse)
print(
f'Seed {params.current_seed} | '
f'Best [Val CCC]:{best_mean_val_ccc:>7.4f} {[format(x, "7.4f") for x in best_val_ccc]}| '
f'Loss: {best_val_loss:>.4f} | '
f'PCC: {best_mean_val_pcc:>.4f} {[format(x, ".4f") for x in best_val_pcc]} | '
f'RMSE: {best_mean_val_rmse:>.4f} {[format(x, ".4f") for x in best_val_rmse]}'
)
return best_val_loss, best_val_ccc, best_val_pcc, best_val_rmse, best_model_file
def main():
train_df = utils.get_train_df()
model = randomforest(train_df)
utils.save_model(model)
