DRofSVD
所属分类：Java编程
开发工具：Java
文件大小：86KB
下载次数：9
上传日期：2016-07-14 14:57:54
上 传 者：
jhlpudnzhanghao
说明： 数据分析类别，使用Java语言实现svd算法实现矩阵降维
(Data analysis category, using the Java language svd matrix dimensionality reduction algorithm)
文件列表:
dami (0, 2011-12-26)
dami\.classpath (393, 2011-12-26)
dami\.project (556, 2011-12-23)
dami\.settings (0, 2011-12-23)
dami\.settings\org.eclipse.core.resources.prefs (88, 2011-12-22)
dami\.settings\org.eclipse.jdt.core.prefs (695, 2011-12-23)
dami\.settings\org.eclipse.m2e.core.prefs (121, 2011-12-23)
dami\bin (0, 2012-01-04)
dami\bin\org (0, 2011-12-19)
dami\bin\org\lgn (0, 2011-12-21)
dami\bin\org\lgn\recommend (0, 2011-12-21)
dami\bin\org\lgn\recommend\stars (0, 2011-12-22)
dami\bin\org\lgn\recommend\stars\common (0, 2011-12-23)
dami\bin\org\lgn\recommend\stars\common\Constants.class (665, 2011-12-22)
dami\bin\org\lgn\recommend\stars\common\DataSet$FileDataSet.class (2344, 2011-12-23)
dami\bin\org\lgn\recommend\stars\common\DataSet$MemDataSet.class (2591, 2011-12-23)
dami\bin\org\lgn\recommend\stars\common\DataSet.class (1006, 2011-12-23)
dami\bin\org\lgn\recommend\stars\common\Evaluator.class (1250, 2011-12-22)
dami\bin\org\lgn\recommend\stars\common\Model.class (370, 2011-12-22)
dami\bin\org\lgn\recommend\stars\common\RatingInfo.class (844, 2011-12-23)
dami\bin\org\lgn\recommend\stars\common\Utilities.class (1871, 2011-12-22)
dami\bin\org\lgn\recommend\stars\model (0, 2011-12-22)
dami\bin\org\lgn\recommend\stars\model\RSVDModel.class (4051, 2011-12-22)
dami\bin\org\lgn\recommend\stars\model\SimpleFactorizationModel.class (5521, 2011-12-22)
dami\bin\org\lgn\recommend\stars\model\SimpleFactorizationModel2.class (5380, 2011-12-22)
dami\bin\org\lgn\recommend\stars\test (0, 2011-12-22)
dami\bin\org\lgn\recommend\stars\test\TestRSVDModel.class (1940, 2011-12-22)
dami\bin\org\lgn\recommend\stars\test\TestSimpleModel.class (1963, 2011-12-22)
dami\bin\org\lgn\recommend\stars\test\TestSimpleModel2.class (2051, 2011-12-23)
dami\conf (0, 2011-12-23)
dami\pom.xml (351, 2011-12-23)
dami\src (0, 2012-01-04)
dami\src\org (0, 2011-12-19)
dami\src\org\lgn (0, 2011-12-21)
dami\src\org\lgn\recommend (0, 2012-01-04)
dami\src\org\lgn\recommend\common (0, 2011-12-30)
dami\src\org\lgn\recommend\common\Constants.java (532, 2012-01-04)
dami\src\org\lgn\recommend\common\DataConverter.java (5193, 2012-01-04)
dami\src\org\lgn\recommend\common\DataSet.java (5236, 2012-01-04)
dami\src\org\lgn\recommend\common\Evaluator.java (1583, 2012-01-04)
... ...
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
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