org.grouplens.lenskit.slopeone

Class SlopeOneModelBuilder

java.lang.Object

org.grouplens.lenskit.slopeone.SlopeOneModelBuilder

All Implemented Interfaces:

javax.inject.Provider<SlopeOneModel>

public class SlopeOneModelBuilder
extends Object
implements javax.inject.Provider<SlopeOneModel>

Pre-computes the deviations and number of mutual rating users for every pair of items and stores the results in a DeviationMatrix and CoratingMatrix. These matrices are later used by a SlopeOneItemScorer.

Constructor Summary

Constructors

Constructor and Description
SlopeOneModelBuilder(ItemDAO dao, ItemItemBuildContext context, double damping)

Method Summary

Modifier and Type	Method and Description
SlopeOneModel	get() Constructs and returns a SlopeOneModel.

Methods inherited from class java.lang.Object

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

Constructor Detail

SlopeOneModelBuilder

@Inject
public SlopeOneModelBuilder(@Nonnull
                                    ItemDAO dao,
                                    ItemItemBuildContext context,
                                    @DeviationDamping
                                    double damping)

Method Detail

get

public SlopeOneModel get()

Constructs and returns a SlopeOneModel.

Specified by:

get in interface javax.inject.Provider<SlopeOneModel>