org.apache.mahout.cf.taste.model

Interface Preference

All Known Implementing Classes:

BooleanPreference, GenericPreference

public interface Preference

A Preference encapsulates an item and a preference value, which indicates the strength of the preference for it. Preferences are associated to users.

Method Summary

Modifier and Type	Method and Description
long	getItemID()
long	getUserID()
float	getValue()
void	setValue(float value) Sets the strength of the preference for this item

Method Detail

getUserID

long getUserID()

Returns:

ID of user who prefers the item

getItemID

long getItemID()

Returns:

item ID that is preferred

getValue

float getValue()

Returns:

strength of the preference for that item. Zero should indicate "no preference either way"; positive values indicate preference and negative values indicate dislike

setValue

void setValue(float value)

Sets the strength of the preference for this item

Parameters:

value - new preference