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/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.mahout.cf.taste.eval;

import org.apache.mahout.cf.taste.impl.common.FastByIDMap;
import org.apache.mahout.cf.taste.model.DataModel;
import org.apache.mahout.cf.taste.model.PreferenceArray;

/**
 * 

* Implementations of this inner interface are simple helper classes which create a {@link DataModel} to be * used while evaluating a {@link org.apache.mahout.cf.taste.recommender.Recommender}. * * @see RecommenderBuilder * @see RecommenderEvaluator */ public interface DataModelBuilder { /** *

* Builds a {@link DataModel} implementation to be used in an evaluation, given training data. *

* * @param trainingData * data to be used in the {@link DataModel} * @return {@link DataModel} based upon the given data */ DataModel buildDataModel(FastByIDMap trainingData); }




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