def run(experiment_name):
BEST_THRES = 3
WORST_THRES = 3
POPULATION_STEPS = 500
ITERATIONS = 100
POPULATION_SIZE = 10
accuracy_hist = np.zeros((POPULATION_SIZE, POPULATION_STEPS))
l1_scale_hist = np.zeros((POPULATION_SIZE, POPULATION_STEPS))
best_accuracy_hist = np.zeros((POPULATION_STEPS, ))
best_l1_scale_hist = np.zeros((POPULATION_STEPS, ))
with tf.Graph().as_default() as gr:
with tf.variable_scope('input'):
tf_input = tf.placeholder(
dtype=tf.int32,
shape=[
None, model_population_based_tunning.SENTENCE_LENGTH_MAX
],
name='tf_input')
tf_labels = tf.placeholder(dtype=tf.int32,
shape=[None],
name='tf_labels')
models = [
create_model(
i, is_included_regularization=FLAGS.IS_INCLUDED_REGULARIZATION)
for i in range(10)
]
# It will help us with creation of different scope_name for each model
for index, model in enumerate(models):
with tf.variable_scope(str(index)):
model.boot(tf_input, tf_labels)
logging.info('Graph size: %s', utils.count_trainable_variables())
gpu_options = tf.GPUOptions(per_process_gpu_memory_fraction=FLAGS.GPU)
with tf.Session(config=tf.ConfigProto(
gpu_options=gpu_options,
allow_soft_placement=True,
log_device_placement=FLAGS.LOG_DEVICE_PLACEMENT)).as_default(
) as sess:
sess.run(tf.global_variables_initializer())
sess.run(tf.local_variables_initializer())
dataset_manager = DatasetManager()
dataset_manager.boot()
dataset_generator = dataset_manager.get_batch(
batch_size=FLAGS.BATCH_SIZE,
number_epochs=10 * FLAGS.NUMBER_EPOCHS)
for i in range(POPULATION_STEPS):
# Copy best
sess.run([
m.get_copy_from_op(models[0])
for m in models[-WORST_THRES:]
])
# Perturb others
sess.run([m.l1_scale_perturb_op for m in models[BEST_THRES:]])
# Training
for _ in range(ITERATIONS):
docs, labels = next(dataset_generator)
sess.run([m.tf_optimizer for m in models],
feed_dict={
tf_input: docs,
tf_labels: labels
})
docs, labels = next(dataset_generator)
# Evaluate
l1_scales = sess.run({m: m.l1_scale for m in models})
accuracies = sess.run({m: m.tf_acc
for m in models},
feed_dict={
tf_input: docs,
tf_labels: labels
})
models.sort(key=lambda m: accuracies[m], reverse=True)
# Logging
best_accuracy_hist[i] = accuracies[models[0]]
best_l1_scale_hist[i] = l1_scales[models[0]]
for m in models:
l1_scale_hist[m.model_id, i] = l1_scales[m]
accuracy_hist[m.model_id, i] = accuracies[m]
with open('temp', 'w') as output_f:
json.dump(
{
'accuracy_hist': accuracy_hist,
'l1_scale_hist': l1_scale_hist,
'best_accuracy_hist': best_accuracy_hist,
'best_l1_scale_hist': best_l1_scale_hist
}, output_f)
def run(experiment_name):
with tf.Graph().as_default() as gr:
with tf.variable_scope('input'):
tf_input = tf.placeholder(dtype=tf.int32,
shape=[None, model.SENTENCE_LENGTH_MAX],
name='tf_input')
tf_labels = tf.placeholder(dtype=tf.int32,
shape=[None],
name='tf_labels')
tf_logits = model.inference(tf_input)
tf_loss = model.loss(tf_logits, tf_labels)
tf_optimizer, tf_global_step = model.optimize(tf_loss)
model.measure_acc(tf_logits, tf_labels)
tf_all_summary = tf.summary.merge_all()
tf_train_writer = tf.summary.FileWriter(logdir=os.path.join(
CURRENT_DIR, '..', 'summary', 'train_' + experiment_name),
graph=gr)
tf_test_writer = tf.summary.FileWriter(logdir=os.path.join(
CURRENT_DIR, '..', 'summary', 'test_' + experiment_name),
graph=gr)
tf_embedding_writer = tf.summary.FileWriter(logdir=os.path.join(
CURRENT_DIR, '..', 'checkpoint', experiment_name))
# Visual word embedding
config = projector.ProjectorConfig()
embedding = config.embeddings.add()
embedding.tensor_name = 'embedding/word_embeddings' # Reference model_v6.py
embedding.metadata_path = os.path.join(CURRENT_DIR, 'data',
DatasetManager.VOCAB_FILE)
projector.visualize_embeddings(tf_embedding_writer, config)
saver = tf.train.Saver(max_to_keep=5,
keep_checkpoint_every_n_hours=0.03)
logging.info('Graph size: %s', utils.count_trainable_variables())
gpu_options = tf.GPUOptions(per_process_gpu_memory_fraction=FLAGS.GPU)
with tf.Session(config=tf.ConfigProto(
gpu_options=gpu_options,
allow_soft_placement=True,
log_device_placement=FLAGS.LOG_DEVICE_PLACEMENT)).as_default(
) as sess:
sess.run(tf.global_variables_initializer())
sess.run(tf.local_variables_initializer())
dataset_manager = DatasetManager()
dataset_manager.boot()
for docs, labels in dataset_manager.get_batch(
batch_size=FLAGS.BATCH_SIZE,
number_epochs=FLAGS.NUMBER_EPOCHS):
_, global_step = sess.run([tf_optimizer, tf_global_step],
feed_dict={
tf_input: docs,
tf_labels: labels
})
summary_interval_step = 10
if global_step % summary_interval_step == 0:
logging.debug('Global step: %s', global_step)
train_summary_data = sess.run(tf_all_summary,
feed_dict={
tf_input: docs,
tf_labels: labels
})
tf_train_writer.add_summary(train_summary_data,
global_step=global_step)
if global_step % summary_interval_step == 0:
docs_test, labels_test = dataset_manager.get_test_set(
FLAGS.TEST_SIZE, is_shuffled=True)
test_summary_data = sess.run(tf_all_summary,
feed_dict={
tf_input: docs_test,
tf_labels: labels_test
})
tf_test_writer.add_summary(test_summary_data,
global_step=global_step)
if global_step % 200 == 0:
path_to_save = os.path.join(CURRENT_DIR, '..',
'checkpoint', experiment_name)
if not os.path.exists(path_to_save):
os.makedirs(path_to_save)
saved_file = saver.save(sess,
save_path=os.path.join(
path_to_save, 'step'),
global_step=global_step,
write_meta_graph=True)
logging.debug('Saving model at %s', saved_file)
