ai.djl.training.listener

Class LoggingTrainingListener

java.lang.Object

ai.djl.training.listener.LoggingTrainingListener

All Implemented Interfaces:

TrainingListener

public class LoggingTrainingListener
extends java.lang.Object
implements TrainingListener

TrainingListener that outputs the progress of training each batch and epoch into logs.

See Also:

The guide on DJL logging

Nested Class Summary

Nested classes/interfaces inherited from interface ai.djl.training.listener.TrainingListener

TrainingListener.BatchData, TrainingListener.Defaults

Constructor Summary

Constructors

Constructor and Description
LoggingTrainingListener() Constructs a LoggingTrainingListener instance.
LoggingTrainingListener(int frequency) Constructs a LoggingTrainingListener instance with specified steps.

Method Summary

Modifier and Type	Method and Description
void	onEpoch(Trainer trainer) Listens to the end of an epoch during training.
void	onTrainingBatch(Trainer trainer, TrainingListener.BatchData batchData) Listens to the end of training one batch of data during training.
void	onTrainingBegin(Trainer trainer) Listens to the beginning of training.
void	onTrainingEnd(Trainer trainer) Listens to the end of training.
void	onValidationBatch(Trainer trainer, TrainingListener.BatchData batchData) Listens to the end of validating one batch of data during validation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LoggingTrainingListener

public LoggingTrainingListener()

Constructs a LoggingTrainingListener instance.

LoggingTrainingListener

public LoggingTrainingListener(int frequency)

Constructs a LoggingTrainingListener instance with specified steps.

Print out logs every frequency epoch.

Parameters:

frequency - the frequency of epoch to print out

Method Detail

onEpoch

public void onEpoch(Trainer trainer)

Listens to the end of an epoch during training.

Specified by:

onEpoch in interface TrainingListener

Parameters:

trainer - the trainer the listener is attached to

onTrainingBatch

public void onTrainingBatch(Trainer trainer,
                            TrainingListener.BatchData batchData)

Listens to the end of training one batch of data during training.

Specified by:

onTrainingBatch in interface TrainingListener

Parameters:

trainer - the trainer the listener is attached to

batchData - the data from the batch

onValidationBatch

public void onValidationBatch(Trainer trainer,
                              TrainingListener.BatchData batchData)

Listens to the end of validating one batch of data during validation.

Specified by:

onValidationBatch in interface TrainingListener

Parameters:

trainer - the trainer the listener is attached to

batchData - the data from the batch

onTrainingBegin

public void onTrainingBegin(Trainer trainer)

Listens to the beginning of training.

Specified by:

onTrainingBegin in interface TrainingListener

Parameters:

trainer - the trainer the listener is attached to

onTrainingEnd

public void onTrainingEnd(Trainer trainer)

Listens to the end of training.

Specified by:

onTrainingEnd in interface TrainingListener

Parameters:

trainer - the trainer the listener is attached to