org.deeplearning4j.datasets.fetchers

Class BaseDataFetcher

java.lang.Object

org.deeplearning4j.datasets.fetchers.BaseDataFetcher

All Implemented Interfaces:

Serializable, DataSetFetcher

Direct Known Subclasses:

IrisDataFetcher, LFWDataFetcher, MnistDataFetcher

public abstract class BaseDataFetcher
extends Object
implements DataSetFetcher

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected DataSet	curr
protected int	cursor
protected int	inputColumns
protected static org.slf4j.Logger	log
protected int	numOutcomes
protected int	totalExamples

Constructor Summary

Constructors

Constructor and Description
BaseDataFetcher()

Method Summary

Methods

Modifier and Type	Method and Description
protected org.jblas.DoubleMatrix	createInputMatrix(int numRows)
protected org.jblas.DoubleMatrix	createOutputMatrix(int numRows)
protected org.jblas.DoubleMatrix	createOutputVector(int outcomeLabel)
int	cursor()
boolean	hasMore()
protected void	initializeCurrFromList(List<Pair<org.jblas.DoubleMatrix,org.jblas.DoubleMatrix>> examples)
int	inputColumns()
DataSet	next()
void	reset()
int	totalExamples()
int	totalOutcomes()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.deeplearning4j.datasets.iterator.DataSetFetcher

fetch

Field Detail

cursor

protected int cursor

numOutcomes

protected int numOutcomes

inputColumns

protected int inputColumns

curr

protected DataSet curr

totalExamples

protected int totalExamples

log

protected static org.slf4j.Logger log

Constructor Detail

BaseDataFetcher

public BaseDataFetcher()

Method Detail

createInputMatrix

protected org.jblas.DoubleMatrix createInputMatrix(int numRows)

createOutputVector

protected org.jblas.DoubleMatrix createOutputVector(int outcomeLabel)

createOutputMatrix

protected org.jblas.DoubleMatrix createOutputMatrix(int numRows)

initializeCurrFromList

protected void initializeCurrFromList(List<Pair<org.jblas.DoubleMatrix,org.jblas.DoubleMatrix>> examples)

hasMore

public boolean hasMore()

Specified by:

hasMore in interface DataSetFetcher

next

public DataSet next()

Specified by:

next in interface DataSetFetcher

totalOutcomes

public int totalOutcomes()

Specified by:

totalOutcomes in interface DataSetFetcher

inputColumns

public int inputColumns()

Specified by:

inputColumns in interface DataSetFetcher

totalExamples

public int totalExamples()

Specified by:

totalExamples in interface DataSetFetcher

reset

public void reset()

Specified by:

reset in interface DataSetFetcher

cursor

public int cursor()

Specified by:

cursor in interface DataSetFetcher