KornakapiRecommender.java

/**
 * Copyright 2012 plista GmbH  (http://www.plista.com/)
 *
 * Licensed 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
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and limitations under the License.
 */

package org.plista.kornakapi;

import org.apache.mahout.cf.taste.common.TasteException;
import org.apache.mahout.cf.taste.recommender.IDRescorer;
import org.apache.mahout.cf.taste.recommender.RecommendedItem;
import org.apache.mahout.cf.taste.recommender.Recommender;

import java.util.List;

/** extension of Mahout's recommender to allow recommendation to anonymous users */
public interface KornakapiRecommender extends Recommender {

  public List<RecommendedItem> recommendToAnonymous(long[] itemIDs, int howMany, IDRescorer rescorer)
      throws TasteException;

  public List<RecommendedItem> recommend(long userID, long[] itemIDs, int howMany,
		IDRescorer rescorer) throws TasteException;
  }