def _train_model(self, train_set, train_labels, validation_set,
validation_labels):
""" Train the model.
:param train_set: training set
:param train_labels: training labels
:param validation_set: validation set
:param validation_labels: validation labels
:return: self
"""
for i in range(self.num_epochs):
shuff = zip(train_set, train_labels)
np.random.shuffle(shuff)
batches = [
_ for _ in utilities.gen_batches(zip(train_set, train_labels),
self.batch_size)
]
for batch in batches:
x_batch, y_batch = zip(*batch)
self.tf_session.run(self.train_step,
feed_dict={
self.input_data: x_batch,
self.input_labels: y_batch
})
if validation_set is not None:
feed = {
self.input_data: validation_set,
self.input_labels: validation_labels
}
self._run_supervised_validation_error_and_summaries(i, feed)
def _run_train_step(self, train_X):
"""Run a training step.
A training step is made by randomly corrupting the training set,
randomly shuffling it, divide it into batches and run the optimizer
for each batch.
Parameters
----------
train_X : array_like
Training data, shape (num_samples, num_features).
Returns
-------
self
"""
x_corrupted = utilities.corrupt_input(
train_X, self.tf_session, self.corr_type, self.corr_frac)
shuff = list(zip(train_X, x_corrupted))
np.random.shuffle(shuff)
batches = [_ for _ in utilities.gen_batches(shuff, self.batch_size)]
for batch in batches:
x_batch, x_corr_batch = zip(*batch)
tr_feed = {self.input_data_orig: x_batch,
self.input_data: x_corr_batch}
self.tf_session.run(self.train_step, feed_dict=tr_feed)
def _train_model(self, train_set, train_ref, validation_set, validation_ref):
""" Train the model.
:param train_set: training set
:param train_ref: training reference data
:param validation_set: validation set
:param validation_ref: validation reference data
:return: self
"""
shuff = zip(train_set, train_ref)
for i in range(self.num_epochs):
np.random.shuffle(shuff)
batches = [_ for _ in utilities.gen_batches(shuff, self.batch_size)]
for batch in batches:
x_batch, y_batch = zip(*batch)
self.tf_session.run(self.train_step, feed_dict={self.input_data: x_batch,
self.input_labels: y_batch,
self.keep_prob: self.dropout})
if validation_set is not None:
feed = {self.input_data: validation_set, self.input_labels: validation_ref, self.keep_prob: 1}
self._run_validation_error_and_summaries(i, feed)
def _train_model(self, train_set, train_ref, validation_set,
validation_ref):
"""Train the model.
:param train_set: training set
:param train_ref: training reference data
:param validation_set: validation set
:param validation_ref: validation reference data
:return: self
"""
shuff = zip(train_set, train_ref)
for i in range(self.num_epochs):
np.random.shuffle(shuff)
batches = [
_ for _ in utilities.gen_batches(shuff, self.batch_size)
]
for batch in batches:
x_batch, y_batch = zip(*batch)
self.tf_session.run(self.train_step,
feed_dict={
self.input_data: x_batch,
self.input_labels: y_batch,
self.keep_prob: self.dropout
})
if validation_set is not None:
feed = {
self.input_data: validation_set,
self.input_labels: validation_ref,
self.keep_prob: 1
}
self._run_validation_error_and_summaries(i, feed)
def _train_model(self, train_set, train_labels,
validation_set, validation_labels):
"""Train the model.
:param train_set: training set
:param train_labels: training labels
:param validation_set: validation set
:param validation_labels: validation labels
:return: self
"""
shuff = list(zip(train_set, train_labels))
pbar = tqdm(range(self.num_epochs))
for i in pbar:
np.random.shuffle(shuff)
batches = [_ for _ in utilities.gen_batches(
shuff, self.batch_size)]
for batch in batches:
x_batch, y_batch = zip(*batch)
self.tf_session.run(
self.train_step, feed_dict={
self.input_data: x_batch,
self.input_labels: y_batch,
self.keep_prob: self.dropout})
if validation_set is not None:
feed = {self.input_data: validation_set,
self.input_labels: validation_labels,
self.keep_prob: 1}
acc = tf_utils.run_summaries(
self.tf_session, self.tf_merged_summaries,
self.tf_summary_writer, i, feed, self.accuracy)
pbar.set_description("Accuracy: %s" % (acc))
def _train_model(self, train_set, train_ref,
validation_set, validation_ref):
"""Train the model.
:param train_set: training set
:param train_ref: training reference data
:param validation_set: validation set
:param validation_ref: validation reference data
:return: self
"""
shuff = list(zip(train_set, train_ref))
pbar = tqdm(range(self.num_epochs))
for i in pbar:
np.random.shuffle(shuff)
batches = [_ for _ in utilities.gen_batches(
shuff, self.batch_size)]
for batch in batches:
x_batch, y_batch = zip(*batch)
self.tf_session.run(
self.train_step,
feed_dict={self.input_data: x_batch,
self.input_labels: y_batch,
self.keep_prob: self.dropout})
if validation_set is not None:
feed = {self.input_data: validation_set,
self.input_labels: validation_ref,
self.keep_prob: 1}
err = tf_utils.run_summaries(
self.tf_session, self.tf_merged_summaries,
self.tf_summary_writer, i, feed, self.cost)
pbar.set_description("Reconstruction loss: %s" % (err))
def _train_model(self, train_set, train_labels,
validation_set, validation_labels):
"""Train the model.
:param train_set: training set
:param train_labels: training labels
:param validation_set: validation set
:param validation_labels: validation labels
:return: self
"""
pbar = tqdm(range(self.num_epochs))
for i in pbar:
shuff = list(zip(train_set, train_labels))
np.random.shuffle(shuff)
batches = [_ for _ in utilities.gen_batches(shuff, self.batch_size)]
for batch in batches:
x_batch, y_batch = zip(*batch)
self.tf_session.run(
self.train_step,
feed_dict={self.input_data: x_batch,
self.input_labels: y_batch})
if validation_set is not None:
feed = {self.input_data: validation_set,
self.input_labels: validation_labels}
acc = tf_utils.run_summaries(
self.tf_session, self.tf_merged_summaries,
self.tf_summary_writer, i, feed, self.accuracy)
pbar.set_description("Accuracy: %s" % (acc))
def _train_model(self, train_set, train_labels,
validation_set, validation_labels):
"""Train the model.
:param train_set: training set
:param train_labels: training labels
:param validation_set: validation set
:param validation_labels: validation labels
:return: self
"""
for i in range(self.num_epochs):
shuff = zip(train_set, train_labels)
np.random.shuffle(shuff)
batches = [_ for _ in utilities.gen_batches(
zip(train_set, train_labels), self.batch_size)]
for batch in batches:
x_batch, y_batch = zip(*batch)
self.tf_session.run(
self.train_step,
feed_dict={self.input_data: x_batch,
self.input_labels: y_batch})
if validation_set is not None:
feed = {self.input_data: validation_set,
self.input_labels: validation_labels}
self._run_validation_error_and_summaries(i, feed)
def _run_train_step(self, train_set):
""" Run a training step. A training step is made by randomly shuffling the training set,
divide into batches and run the variable update nodes for each batch.
:param train_set: training set
:return: self
"""
np.random.shuffle(train_set)
batches = [_ for _ in utilities.gen_batches(train_set, self.batch_size)]
updates = [self.w_upd8, self.bh_upd8, self.bv_upd8]
for batch in batches:
self.tf_session.run(updates, feed_dict=self._create_feed_dict(batch))
def _run_train_step(self, train_set):
""" Run a training step. A training step is made by randomly corrupting the training set,
randomly shuffling it, divide it into batches and run the optimizer for each batch.
:param train_set: training set
:return: self
"""
x_corrupted = self._corrupt_input(train_set)
shuff = zip(train_set, x_corrupted)
np.random.shuffle(shuff)
batches = [_ for _ in utilities.gen_batches(shuff, self.batch_size)]
for batch in batches:
x_batch, x_corr_batch = zip(*batch)
tr_feed = {self.input_data: x_batch, self.input_data_corr: x_corr_batch}
self.tf_session.run(self.train_step, feed_dict=tr_feed)
def _run_train_step(self, train_set):
""" Run a training step. A training step is made by randomly corrupting the training set,
randomly shuffling it, divide it into batches and run the optimizer for each batch.
:param train_set: training set
:return: self
"""
x_corrupted = self._corrupt_input(train_set)
shuff = zip(train_set, x_corrupted)
np.random.shuffle(shuff)
batches = [_ for _ in utilities.gen_batches(shuff, self.batch_size)]
for batch in batches:
x_batch, x_corr_batch = zip(*batch)
tr_feed = {
self.input_data_orig: x_batch,
self.input_data: x_corr_batch
}
self.tf_session.run(self.train_step, feed_dict=tr_feed)
def _train_model(self, train_set, train_ref, validation_set,
validation_ref):
"""Train the model.
:param train_set: training set
:param train_ref: training reference data
:param validation_set: validation set
:param validation_ref: validation reference data
:return: self
"""
shuff = list(zip(train_set, train_ref))
pbar = tqdm(list(range(self.num_epochs)))
for i in pbar:
np.random.shuffle(shuff)
batches = [
_ for _ in utilities.gen_batches(shuff, self.batch_size)
]
for batch in batches:
x_batch, y_batch = list(zip(*batch))
self.tf_session.run(self.train_step,
feed_dict={
self.input_data: x_batch,
self.input_labels: y_batch,
self.keep_prob: self.dropout
})
if validation_set is not None:
feed = {
self.input_data: validation_set,
self.input_labels: validation_ref,
self.keep_prob: 1
}
err = tf_utils.run_summaries(self.tf_session,
self.tf_merged_summaries,
self.tf_summary_writer, i, feed,
self.cost)
pbar.set_description("Reconstruction loss: %s" % (err))