[{"title":"( 4 个子文件 2.91MB ) SVD矩阵分解在推荐系统中的应用实现","children":[{"title":"SVD","children":[{"title":"svd.conf <span style='color:#111;'> 97B </span>","children":null,"spread":false},{"title":"SVD.py <span style='color:#111;'> 4.06KB </span>","children":null,"spread":false},{"title":"ml_data","children":[{"title":"test.txt <span style='color:#111;'> 229.51KB </span>","children":null,"spread":false},{"title":"training.txt <span style='color:#111;'> 12.24MB </span>","children":null,"spread":false}],"spread":true}],"spread":true}],"spread":true}]