org.lenskit.slopeone

Class SlopeOneItemScorer

java.lang.Object

org.lenskit.basic.AbstractItemScorer

org.lenskit.slopeone.SlopeOneItemScorer

All Implemented Interfaces:

org.lenskit.api.ItemScorer

Direct Known Subclasses:

WeightedSlopeOneItemScorer

public class SlopeOneItemScorer
extends org.lenskit.basic.AbstractItemScorer

An ItemScorer that implements the Slope One algorithm.

Field Summary

Fields

Modifier and Type	Field and Description
protected org.lenskit.data.ratings.RatingVectorPDAO	dao
protected org.lenskit.data.ratings.PreferenceDomain	domain
protected SlopeOneModel	model

Constructor Summary

Constructors

Constructor and Description
SlopeOneItemScorer(org.lenskit.data.ratings.RatingVectorPDAO dao, SlopeOneModel model, org.lenskit.data.ratings.PreferenceDomain dom)

Method Summary

Modifier and Type	Method and Description
SlopeOneModel	getModel()
org.lenskit.api.ResultMap	scoreWithDetails(long user, Collection<Long> items)

Methods inherited from class org.lenskit.basic.AbstractItemScorer

score, score

Methods inherited from class java.lang.Object

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

Field Detail

dao

protected final org.lenskit.data.ratings.RatingVectorPDAO dao

model

protected SlopeOneModel model

domain

protected final org.lenskit.data.ratings.PreferenceDomain domain

Constructor Detail

SlopeOneItemScorer

@Inject
public SlopeOneItemScorer(org.lenskit.data.ratings.RatingVectorPDAO dao,
                                   SlopeOneModel model,
                                   @Nullable
                                   org.lenskit.data.ratings.PreferenceDomain dom)

Method Detail

scoreWithDetails

@Nonnull
public org.lenskit.api.ResultMap scoreWithDetails(long user,
                                                            @Nonnull
                                                            Collection<Long> items)

getModel

public SlopeOneModel getModel()