001/*-------------------------------------------------------------------------+
002|                                                                          |
003| Copyright 2005-2011 the ConQAT Project                                   |
004|                                                                          |
005| Licensed under the Apache License, Version 2.0 (the "License");          |
006| you may not use this file except in compliance with the License.         |
007| You may obtain a copy of the License at                                  |
008|                                                                          |
009|    http://www.apache.org/licenses/LICENSE-2.0                            |
010|                                                                          |
011| Unless required by applicable law or agreed to in writing, software      |
012| distributed under the License is distributed on an "AS IS" BASIS,        |
013| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
014| See the License for the specific language governing permissions and      |
015| limitations under the License.                                           |
016+-------------------------------------------------------------------------*/
017package org.conqat.lib.commons.datamining;
018
019import java.util.Set;
020
021/**
022 * Recommender that can produce recommendations for a user of the recommendation
023 * system. A concrete recommender uses different aspects of the user to
024 * determine the recommendations.
025 * 
026 * @param <T>
027 *            the item type to be recommended
028 */
029public interface IRecommender<T> {
030
031        /** Computes a set of recommendations for the given user */
032        Set<Recommendation<T>> recommend(IRecommenderUser user);
033
034}