Package org.grouplens.lenskit.eval.data

Examples of org.grouplens.lenskit.eval.data.GenericDataSource

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     * @param dom The {@code PreferenceDomain} to be supplied to the new {@code TTDataSet}
     * @return Itself for  method chaining.
     */
    public SimpleEvaluator addDataset(String name, EventDAO train, EventDAO test, PreferenceDomain dom){
        result.addDataset(GenericTTDataSet.newBuilder(name)
                                          .setTrain(new GenericDataSource(name + ".train", train, dom))
                                          .setTest(new GenericDataSource(name + ".test", test, dom))
                                          .build());
        return this;
    }
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        SimpleEvaluator evalCommand = new SimpleEvaluator(props);
        AlgorithmInstanceBuilder algo = new AlgorithmInstanceBuilder();
        configureAlgorithm(algo.getConfig());
        evalCommand.addAlgorithm(algo);

        evalCommand.addDataset(new GenericDataSource("ml-100k", dao, PreferenceDomain.fromString("[1,5]/1")), 5, 0.2);

        evalCommand.addMetric(new CoveragePredictMetric())
                   .addMetric(new RMSEPredictMetric())
                   .addMetric(new MAEPredictMetric());
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Related Classes of org.grouplens.lenskit.eval.data.GenericDataSource

  • org.grouplens.lenskit.eval.traintest.SimpleEvaluator
  • org.grouplens.lenskit.test.CrossfoldTestSuite
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