org.conqat.lib.commons.datamining

Class TopNRecommender<T>

java.lang.Object

org.conqat.lib.commons.datamining.TopNRecommender<T>

All Implemented Interfaces:

IRecommender<T>

public class TopNRecommender<T>
extends java.lang.Object
implements IRecommender<T>

Trivial recommender that always returns the top n used items from the training data, independent of the query. The confidence is set to a fixed value of .5 for all recommendations.

Constructor Summary

Constructors

Constructor and Description
TopNRecommender(RecommenderRatingDatabase<T> ratingDatabase, int numRecommendations) Constructs a new TopNRecommender using the given rating data base.

Method Summary

Modifier and Type	Method and Description
UnmodifiableSet<Recommendation<T>>	recommend(IRecommenderUser user) Computes a set of recommendations for the given user

Methods inherited from class java.lang.Object

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

Constructor Detail

TopNRecommender

public TopNRecommender(RecommenderRatingDatabase<T> ratingDatabase,
                       int numRecommendations)

Constructs a new TopNRecommender using the given rating data base. There have to be at least numRecommendations entries in the data base.

Method Detail

recommend

public UnmodifiableSet<Recommendation<T>> recommend(IRecommenderUser user)

Computes a set of recommendations for the given user

Specified by:

recommend in interface IRecommender<T>