Example usage for org.apache.mahout.cf.taste.eval DataModelBuilder DataModelBuilder

Introduction

In this page you can find the example usage for org.apache.mahout.cf.taste.eval DataModelBuilder DataModelBuilder.

Prototype

DataModelBuilder

Source Link

Usage

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  w  w. j  av  a  2 s .c  om
    };

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

}

---

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

License:Apache License

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

---