org.lenskit.predict

Class QuantizedRatingPredictor

java.lang.Object

org.lenskit.basic.AbstractRatingPredictor

org.lenskit.predict.QuantizedRatingPredictor

All Implemented Interfaces:

RatingPredictor

public class QuantizedRatingPredictor
extends AbstractRatingPredictor

A rating predictor wrapper that quantizes scores to compute predictions.

Constructor Summary

Constructors

Constructor and Description
QuantizedRatingPredictor(ItemScorer scorer, Quantizer q) Construct a new quantized predictor.

Method Summary

Modifier and Type	Method and Description
ResultMap	predictWithDetails(long user, Collection<Long> items) Predict the user’s preference for a collection of items, potentially with additional details.

Methods inherited from class org.lenskit.basic.AbstractRatingPredictor

predict, predict

Methods inherited from class java.lang.Object

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

Constructor Detail

QuantizedRatingPredictor

@Inject
public QuantizedRatingPredictor(@PredictionScorer
                                         ItemScorer scorer,
                                         Quantizer q)

Construct a new quantized predictor.

Parameters:

scorer - The item scorer to use.

q - The quantizer.

Method Detail

predictWithDetails

@Nonnull
public ResultMap predictWithDetails(long user,
                                              @Nonnull
                                              Collection<Long> items)

Description copied from interface: RatingPredictor

Predict the user’s preference for a collection of items, potentially with additional details.

Parameters:

user - The user ID for whom to generate predicts.

items - The items to predict for.

Returns:

A mapping from item IDs to predicted preference. This mapping may not contain all requested items.