[{"title":"( 4 个子文件 186.55MB ) 数据——东北大学数据挖掘实训三.zip","children":[{"title":"数据","children":[{"title":"train.csv <span style='color:#111;'> 279.36MB </span>","children":null,"spread":false},{"title":"test.csv <span style='color:#111;'> 141.50MB </span>","children":null,"spread":false},{"title":"训练和预测用数据--做题用","children":[{"title":"test_feature.csv <span style='color:#111;'> 256.75MB </span>","children":null,"spread":false},{"title":"train_feature.csv <span style='color:#111;'> 568.05MB </span>","children":null,"spread":false}],"spread":true}],"spread":true}],"spread":true}]