net.librec.eval

Interface RecommenderEvaluator

All Known Implementing Classes:

AbstractRecommenderEvaluator, AUCEvaluator, AveragePrecisionEvaluator, AverageReciprocalHitRankEvaluator, DiversityEvaluator, HitRateEvaluator, IdealDCGEvaluator, MAEEvaluator, MPEEvaluator, MSEEvaluator, NormalizedDCGEvaluator, PrecisionEvaluator, RecallEvaluator, ReciprocalRankEvaluator, RMSEEvaluator

public interface RecommenderEvaluator

Implementations of this interface evaluate the quality of a Recommender's recommendations.

Author:

WangYuFeng

Method Summary

Methods

Modifier and Type	Method and Description
double	evaluate(RecommenderContext context, RecommendedList recommendedList) Evaluate on the recommender context with the recommended list.
void	setTopN(int topN) Set the number of recommended items.

Method Detail

evaluate

double evaluate(RecommenderContext context,
              RecommendedList recommendedList)

Evaluate on the recommender context with the recommended list.

Parameters:

context - RecommenderContext object

recommendedList - RecommendedList object

Returns:

evaluate result

setTopN

void setTopN(int topN)

Set the number of recommended items.

Parameters:

topN - the number of recommended items