mahout学习（一）

mahout主页:http://mahout.apache.org/

mahout maven:

<dependency>
    <groupId>org.apache.mahout</groupId>
    <artifactId>mahout-core</artifactId>
    <version>0.9</version>
</dependency>

参考：http://mahout.apache.org/users/recommender/userbased-5-minutes.html

例子：

public class TMahout01 {

    public static void main(String[] args) throws IOException, TasteException {

        //-简单的推荐程序-//
        DataModel model = new FileDataModel(new File("path/dataset.csv"));

        UserSimilarity similarity = new PearsonCorrelationSimilarity(model);
        UserNeighborhood neighborhood = new ThresholdUserNeighborhood(0.1, similarity, model);

        UserBasedRecommender recommender = new GenericUserBasedRecommender(model, neighborhood, similarity);
        List<RecommendedItem> recommendations = recommender.recommend(2, 3);
        for (RecommendedItem recommendation : recommendations) {
            System.out.println(recommendation);
        }

    }

}