org.apache.mahout.cf.taste.impl.eval.AverageAbsoluteDifferenceRecommenderEvaluator Java Examples
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org.apache.mahout.cf.taste.impl.eval.AverageAbsoluteDifferenceRecommenderEvaluator.
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Example #1
Source File: BookRecommender.java From Machine-Learning-in-Java with MIT License | 5 votes |
public static void evaluateRecommender() throws Exception{ StringItemIdFileDataModel dataModel = loadFromFile("data/BX-Book-Ratings.csv",";"); RecommenderEvaluator evaluator = new AverageAbsoluteDifferenceRecommenderEvaluator(); RecommenderBuilder builder = new BookRecommender(); double result = evaluator.evaluate(builder, null, dataModel, 0.9, 1.0); System.out.println(result); }
Example #2
Source File: MovieUserEvaluator.java From hiped2 with Apache License 2.0 | 5 votes |
public static void evaluate(String ratingsFile) throws TasteException, IOException { DataModel model = new FileDataModel(new File(ratingsFile)); RecommenderEvaluator evaluator = new AverageAbsoluteDifferenceRecommenderEvaluator(); RecommenderBuilder recommenderBuilder = new MyRecommendBuilder(); evaluator.evaluate( recommenderBuilder, null, model, 0.95, 0.05 ); }