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Recommended-system-practice

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项亮等《推荐系统实践》算法代码

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# Recommended-system-practice
项亮等《推荐系统实践》练习

![Image text](https://github.com/wangyuyunmu/Recommended-system-practice/blob/master/images/%E6%8E%A8%E8%8D%90%E7%B3%BB%E7%BB%9F.png)

![Image text](https://github.com/wangyuyunmu/Recommended-system-practice/blob/master/images/TopN%E6%8E%A8%E8%8D%90.png)

![Image text](https://github.com/wangyuyunmu/Recommended-system-practice/blob/master/images/%E8%AF%84%E5%88%86%E9%A2%84%E6%B5%8B%E6%8E%A8%E8%8D%90.png)

![Image text](https://github.com/wangyuyunmu/Recommended-system-practice/blob/master/images/%E6%8E%A8%E8%8D%90%E7%B3%BB%E7%BB%9F%E6%9E%B6%E6%9E%84.png)

其中所涉及到的数据集：

MovieLens: http://www.grouplens.org/node/73

delicious-2k: http://files.grouplens.org/datasets/hetrec2011/hetrec2011-delicious-2k.zip

lastfm-dataset-360K: http://mtg.upf.edu/static/datasets/last.fm/lastfm-dataset-360K.tar.gz

slashdot: http://snap.stanford.edu/data/soc-Slashdot0902.txt.gz

epinions: http://snap.stanford.edu/data/soc-Epinions1.txt.gz

lastfm-dataset-360K大概500M，其他均比较小

slashdot，epinions是关于社交关系的，内容比较简单

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