java实现的几个推荐算法：slopeone SVD,RSVD,ItemNeighborSVD
由于只是为了看看RMSE效果，因此很多功能都没完善
如果需要跑起来看效果，那么你需要
1. 下载movielens数据集，建议使用 1000W数据集 http://www.grouplens.org/sites/www.grouplens.org/external_files/data/ml-10m.zip
2. 查看修改regeneration.py 重新生成一遍数据集。再修改运行common下的DataConverter生成算法需要的格式
3. 根据需要修改test目录里的代码，运行。参数配置可先不动，
建议阅读相关算法。欢迎阅读源码并提出指正
如有问题可联系 blog.csdn.net/lgnlgn 或者 email到 gnliang10@126.com
几个推荐算法的java实现
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2012-01-05
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dami.zip （69个子文件） 
dami bin org lgn recommend stars model 
RSVDModel.class 4KB SimpleFactorizationModel2.class 5KB SimpleFactorizationModel.class 5KB test TestRSVDModel.class 2KB TestSimpleModel.class 2KB TestSimpleModel2.class 2KB common Constants.class 665B RatingInfo.class 844B Evaluator.class 1KB Model.class 370B DataSet.class 1006B DataSet$FileDataSet.class 2KB DataSet$MemDataSet.class 3KB Utilities.class 2KB pom.xml 351B conf target surefire surefire4479632135449591895tmp 163B surefire3669079279780961634tmp 1KB surefire8097776110951223942tmp 163B surefire750073951292963203tmp 1KB classes org lgn recommend common DataConverter.class 5KB Constants.class 696B Pair.class 1KB RatingInfo.class 927B Recommender.class 356B Evaluator.class 3KB Model.class 477B DataSet.class 783B DataSet$MemDataSet.class 4KB Utilities.class 3KB UserRatings.class 1KB stars model RSVDModel.class 5KB ItemNeighborFactorization.class 9KB SimpleFactorizationModel2.class 6KB SimpleFactorizationModel.class 6KB test TestRSVDModel.class 2KB TestItemNeighborModel.class 2KB TestSimpleModel.class 2KB TestSlopeOne.class 2KB TestSimpleModel2.class 2KB cf SlopeOne$Slope.class 827B SlopeOne.class 5KB dyadic graph cf maven-archiver pom.properties 107B .settings org.eclipse.m2e.core.prefs 121B org.eclipse.core.resources.prefs 88B org.eclipse.jdt.core.prefs 695B src org lgn recommend common Model.java 481B Constants.java 532B Utilities.java 3KB RatingInfo.java 456B DataConverter.java 5KB Recommender.java 217B DataSet.java 5KB Evaluator.java 2KB UserRatings.java 1KB Pair.java 729B stars model ItemNeighborFactorization.java 11KB RSVDModel.java 4KB SimpleFactorizationModel2.java 5KB SimpleFactorizationModel.java 6KB test TestSimpleModel2.java 1KB TestSlopeOne.java 915B TestSimpleModel.java 1KB TestItemNeighborModel.java 1KB TestRSVDModel.java 994B cf SlopeOne.java 5KB dyadic graph cf .project 556B .classpath 393B regeneration.py 1KB
readme.txt 541B
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