def track_best(channel, save_path):
tracker = TrackTheBest(channel, choose_best=min)
checkpoint = saveload.Checkpoint(save_path,
after_training=False,
use_cpickle=True)
checkpoint.add_condition(["after_epoch"],
predicate=predicates.OnLogRecord(
'{0}_best_so_far'.format(channel)))
return [tracker, checkpoint]
def track_best(self, channel, save_path=None, choose_best=min):
tracker = TrackTheBest(channel, choose_best=choose_best)
self.extensions.append(tracker)
if save_path:
checkpoint = saveload.Checkpoint(save_path,
after_training=False,
use_cpickle=True)
checkpoint.add_condition(["after_epoch"],
predicate=predicates.OnLogRecord(
'{0}_best_so_far'.format(channel)))
self.extensions.append(checkpoint)
def track_best(channel, save_path, last_path, num_epochs, maxEpochs,
maxIterations, epsilon, tempSharedData):
tracker = TrackTheBest(channel)
finishNoimprove = FinishIfNoImprovementEpsilonAfter(
'valid_MRR_best_so_far', epochs=num_epochs, epsilon=epsilon)
lastcheckpoint = myCheckpoint(last_path, tempSharedData)
checkpoint = myCheckpoint(save_path,
tempSharedData,
after_training=False,
use_cpickle=True)
checkpoint.add_condition(["after_epoch"],
predicate=predicates.OnLogRecord(
'{0}_best_so_far'.format(channel)))
finishAfter = FinishAfter(after_n_epochs=maxEpochs,
after_n_batches=maxIterations)
return [tracker, finishNoimprove, lastcheckpoint, checkpoint, finishAfter]
raise ValueError, conf.task
per_val_monitor = PER_Monitor(stream_val,
theano.function([x, x_m], y_hat_softmax),
before_first_epoch=True,
after_epoch=True,
prefix='valPER')
per_test_monitor = PER_Monitor(stream_test,
theano.function([x, x_m], y_hat_softmax),
before_first_epoch=False,
every_n_epochs=5,
prefix='testPER')
checkpoint = Checkpoint(conf.path_to_model, after_training=False)
checkpoint.add_condition(
['after_epoch'],
predicate=predicates.OnLogRecord('valid_log_p_best_so_far'))
extensions = [
val_monitor,
train_monitor,
per_val_monitor,
per_test_monitor,
Timing(),
FinishAfter(after_n_epochs=conf.max_epochs),
checkpoint,
Printing(),
TrackTheBest(record_name='val_monitor',
notification_name='valid_log_p_best_so_far'),
FinishIfNoImprovementAfter(notification_name='valid_log_p_best_so_far',
epochs=conf.epochs_early_stopping),
]
main_loop = MainLoop(