def start_prediction(output_directory,
data_directory,
dataset_name,
model_dir,
network_name,
batch_size,
batch_threads,
num_classes=None):
dataset_factory = DatasetFactory(dataset_name=dataset_name,
data_directory=data_directory,
augment=False)
if num_classes is None:
num_classes = dataset_factory.get_dataset('train').num_classes()
run_config = RunConfig(keep_checkpoint_max=10, save_checkpoints_steps=None)
# Instantiate Estimator
estimator = tf.estimator.Estimator(model_fn=get_model_function(
model_dir, network_name, num_classes),
model_dir=model_dir,
config=run_config,
params={})
image_size = nets_factory.get_input_size(network_name)
run_prediction_and_evaluation(output_directory, batch_size, batch_threads,
dataset_factory, estimator, image_size)
def start_training(data_directory, dataset_name, output_directory,
network_name, batch_size, learning_rate, batch_threads,
num_epochs, initial_checkpoint, checkpoint_exclude_scopes,
ignore_missing_variables, trainable_scopes,
not_trainable_scopes, fixed_learning_rate,
learning_rate_decay_rate, do_evaluation,
learning_rate_decay_steps):
dataset_factory = DatasetFactory(dataset_name=dataset_name,
data_directory=data_directory)
model_params = {
'learning_rate':
learning_rate,
'fixed_learning_rate':
fixed_learning_rate,
'learning_rate_decay_rate':
learning_rate_decay_rate,
'learning_rate_decay_steps':
(dataset_factory.get_dataset('train').get_number_of_samples() if
learning_rate_decay_steps is None else learning_rate_decay_steps) //
batch_size
}
run_config = RunConfig(keep_checkpoint_max=10, save_checkpoints_steps=None)
# Instantiate Estimator
estimator = tf.estimator.Estimator(model_fn=get_model_function(
output_directory, network_name,
dataset_factory.get_dataset('train').num_classes(), initial_checkpoint,
checkpoint_exclude_scopes, ignore_missing_variables, trainable_scopes,
not_trainable_scopes),
params=model_params,
model_dir=output_directory,
config=run_config)
image_size = nets_factory.get_input_size(network_name)
dataset = dataset_factory.get_dataset('train')
evaluation_summary_writer = get_evaluation_summary_writer(
do_evaluation, output_directory)
for epoch in range(num_epochs):
run_training(dataset=dataset,
batch_size=batch_size,
batch_threads=batch_threads,
epoch=epoch,
estimator=estimator,
num_epochs=num_epochs,
image_size=image_size)
if do_evaluation:
run_evaluation_conserving_best(
estimator=estimator,
batch_size=2 * batch_size,
batch_threads=batch_threads,
dataset_factory=dataset_factory,
image_size=image_size,
evaluation_summary_writer=evaluation_summary_writer)
print('Finished training')
def start_training(data_directory, dataset_name, output_directory, network_name, batch_size, learning_rate, batch_threads, num_epochs, initial_checkpoint, checkpoint_exclude_scopes,ignore_missing_variables, trainable_scopes, fixed_learning_rate, learning_rate_decay_rate, num_classes):
dataset_factory = DatasetFactory(dataset_name=dataset_name, data_directory=data_directory)
model_params = {'learning_rate': learning_rate,'fixed_learning_rate': fixed_learning_rate,'learning_rate_decay_rate': learning_rate_decay_rate,'learning_rate_decay_steps': dataset_factory.get_dataset('train').get_number_of_samples() // batch_size}
run_config = RunConfig(keep_checkpoint_max=10, save_checkpoints_steps=None)
# Instantiate Estimator
estimator = tf.estimator.Estimator(model_fn=get_model_function(output_directory, network_name, dataset_factory.get_dataset('train').num_classes() if num_classes is None else num_classes, initial_checkpoint,checkpoint_exclude_scopes, ignore_missing_variables, trainable_scopes),params=model_params,model_dir=output_directory,config=run_config)
image_size = nets_factory.get_input_size(network_name)
for epoch in range(num_epochs):
run_training(dataset_factory, batch_size, batch_threads, epoch, estimator, num_epochs, image_size)
#run_validation(dataset_factory, batch_size, batch_threads, estimator, image_size)
run_evaluation(batch_size, batch_threads, dataset_factory, estimator, image_size)
