Example usage for org.apache.mahout.cf.taste.impl.model GenericBooleanPrefDataModel toDataMap

Introduction

In this page you can find the example usage for org.apache.mahout.cf.taste.impl.model GenericBooleanPrefDataModel toDataMap.

Prototype

public static FastByIDMap<FastIDSet> toDataMap(FastByIDMap<PreferenceArray> data) 

Source Link

Usage

From source file:io.prediction.engines.base.mahout.AllValidItemsCandidateItemsStrategy.java

License:Apache License

public AllValidItemsCandidateItemsStrategy(long[] validItemIDs, DataModel seenDataModel) throws TasteException {
    super();/*from   w w  w  .j ava  2 s  .  c o  m*/
    if (seenDataModel != null)
        this.seenDataMap = GenericBooleanPrefDataModel.toDataMap(seenDataModel);
    else
        this.seenDataMap = null;

    this.validItemIDs = validItemIDs;
}

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From source file:nl.gridline.zieook.client.tools.ZieOokEvaluatorTest.java

License:Apache License

@Ignore
private static GenericBooleanPrefDataModel createDataBooleanModel(String input) {
    try {//  w  ww .  j a  v  a 2 s .c  om
        return new GenericBooleanPrefDataModel(GenericBooleanPrefDataModel.toDataMap(createDataModel(input)));
    } catch (TasteException e) {
        LOG.error("failed to read data", e);
        fail();
    }
    return null;
}

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From source file:org.zaizi.mahout.eval.IRMahoutEvaluator.java

License:Open Source License

public double evaluate(RecommenderBuilder builder, DataModel datamodel) throws TasteException {

    DataModelBuilder modelBuilder = new DataModelBuilder() {

        public DataModel buildDataModel(FastByIDMap<PreferenceArray> trainingData) {
            return new GenericBooleanPrefDataModel(GenericBooleanPrefDataModel.toDataMap(trainingData));
        }/*from  w  ww.  ja va 2s .c om*/
    };

    return evaluator.evaluate(builder, modelBuilder, datamodel, null, precisionAt,
            GenericRecommenderIRStatsEvaluator.CHOOSE_THRESHOLD, evaluationPercentage).getF1Measure();

}

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From source file:tv.icntv.recommend.algorithm.test.RecommendFactory.java

License:Apache License

public static DataModel buildDataModelNoPref(String file) throws TasteException, IOException {
    return new GenericBooleanPrefDataModel(
            GenericBooleanPrefDataModel.toDataMap(new FileDataModel(new File(file))));
}

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From source file:tv.icntv.recommend.algorithm.test.RecommendFactory.java

License:Apache License

public static DataModelBuilder buildDataModelNoPrefBuilder() {
    return new DataModelBuilder() {
        @Override/*from   ww w. ja  v  a 2  s  . c  o m*/
        public DataModel buildDataModel(FastByIDMap<PreferenceArray> trainingData) {
            return new GenericBooleanPrefDataModel(GenericBooleanPrefDataModel.toDataMap(trainingData));
        }
    };
}

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