org.apache.mahout.cf.taste.example.kddcup.track1.svd

Class DataModelFactorizablePreferences

java.lang.Object

org.apache.mahout.cf.taste.example.kddcup.track1.svd.DataModelFactorizablePreferences

All Implemented Interfaces:

FactorizablePreferences

public class DataModelFactorizablePreferences
extends Object
implements FactorizablePreferences

can be used to drop DataModels into ParallelArraysSGDFactorizer

Constructor Summary

Constructors

Constructor and Description
DataModelFactorizablePreferences(DataModel dataModel)

Method Summary

Methods

Modifier and Type	Method and Description
LongPrimitiveIterator	getItemIDs()
float	getMaxPreference()
float	getMinPreference()
Iterable<Preference>	getPreferences()
LongPrimitiveIterator	getUserIDs()
int	numItems()
int	numPreferences()
int	numUsers()

Methods inherited from class java.lang.Object

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

Constructor Detail

DataModelFactorizablePreferences

public DataModelFactorizablePreferences(DataModel dataModel)

Method Detail

getUserIDs

public LongPrimitiveIterator getUserIDs()

Specified by:

getUserIDs in interface FactorizablePreferences

getItemIDs

public LongPrimitiveIterator getItemIDs()

Specified by:

getItemIDs in interface FactorizablePreferences

getPreferences

public Iterable<Preference> getPreferences()

Specified by:

getPreferences in interface FactorizablePreferences

getMinPreference

public float getMinPreference()

Specified by:

getMinPreference in interface FactorizablePreferences

getMaxPreference

public float getMaxPreference()

Specified by:

getMaxPreference in interface FactorizablePreferences

numUsers

public int numUsers()

Specified by:

numUsers in interface FactorizablePreferences

numItems

public int numItems()

Specified by:

numItems in interface FactorizablePreferences

numPreferences

public int numPreferences()

Specified by:

numPreferences in interface FactorizablePreferences