1092798448 / recsys Goto Github PK
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recsys's Issues
1
跑了一下你的代码
precision = 0.048507
recall = 0.915210
coverage = 0.995761
popularity = 3.984490
结果如上，准确率这么低，还有，你在构造数据的时候，有评分的样本定义为1，没有构造负样本吗？这个过程在哪里？求指点！
UserCF's Recommendation() function
I ran your mainCF, and found the precision is very low. I think you need change sorted(rank.items(), key = operator.itemgetter(1), reverse = True) to R = sorted(rank.items(), key = operator.itemgetter(1), reverse = True)[0:K] in UserCF.Recommendation()
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