Package org.localify.recommend

Class RandomRecommender

java.lang.Object

org.localify.recommend.RandomRecommender

All Implemented Interfaces:

Recommender

public class RandomRecommender
extends Object
implements Recommender

A simple recommendation system implementing Recommender.

Picks local topArtists and randomly assigns a score to them.

This 'recommendation' system can be used as a defaultGeoDetails for actual implementations; this provides for resilience in case of a downstream system failure.

Constructor Summary

Constructors

Constructor	Description
RandomRecommender()

Method Summary

Modifier and Type	Method	Description
List<RecSysArtistResponse>	doRecommend(List<UUID> seeds, List<UUID> locals)	Random recommendation implementation.
void	switchModel()	Switches the model used by the recommender.
void	trainModel()	Trains the recommender model.

Methods inherited from class java.lang.Object

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

Constructor Details

RandomRecommender

public RandomRecommender()

Method Details

doRecommend

public List<RecSysArtistResponse> doRecommend(List<UUID> seeds,
 List<UUID> locals)

Random recommendation implementation.

Shuffles local topArtists, picks 25 of them, gives them a random score, and 3 random seed topArtists they are similar to.

Specified by:

doRecommend in interface Recommender

Parameters:

seeds - the seed topArtists

locals - the local topArtists

Returns:

a collection of the recommendation responses - including the IDs and scores.

switchModel

public void switchModel()

Description copied from interface: Recommender

Switches the model used by the recommender.

Specified by:

switchModel in interface Recommender

trainModel

public void trainModel()

Description copied from interface: Recommender

Trains the recommender model.

Specified by:

trainModel in interface Recommender