org.ranksys.fm.data

Class BPRPreferenceFMData

java.lang.Object

org.ranksys.fm.data.BPRPreferenceFMData

All Implemented Interfaces:

org.ranksys.javafm.data.FMData

public class BPRPreferenceFMData
extends Object
implements org.ranksys.javafm.data.FMData

Samples user preferences for a BPR-like loss minimisation.

Author:

Saúl Vargas (Saul@VargasSandoval.es)

Constructor Summary

Constructors

Constructor and Description
BPRPreferenceFMData(FastPreferenceData<?,?> prefs) Constructor.
BPRPreferenceFMData(FastPreferenceData<?,?> prefs, Random rnd) Constructor.

Method Summary

Modifier and Type	Method and Description
int	numFeatures()
int	numInstances()
void	shuffle()
Stream<? extends org.ranksys.javafm.FMInstance>	stream()

Methods inherited from class java.lang.Object

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

Constructor Detail

BPRPreferenceFMData

public BPRPreferenceFMData(FastPreferenceData<?,?> prefs)

Constructor.

Parameters:

prefs - preference data

BPRPreferenceFMData

public BPRPreferenceFMData(FastPreferenceData<?,?> prefs,
                           Random rnd)

Constructor.

Parameters:

prefs - preference data

rnd - random number generator

Method Detail

numFeatures

public int numFeatures()

Specified by:

numFeatures in interface org.ranksys.javafm.data.FMData

numInstances

public int numInstances()

Specified by:

numInstances in interface org.ranksys.javafm.data.FMData

shuffle

public void shuffle()

Specified by:

shuffle in interface org.ranksys.javafm.data.FMData

stream

public Stream<? extends org.ranksys.javafm.FMInstance> stream()

Specified by:

stream in interface org.ranksys.javafm.data.FMData