有人算过《推荐系统实践》第二章的召回、准确率吗，我算出来和书里的不一样 - V2EX

有人算过《推荐系统实践》第二章的召回、准确率吗，我算出来和书里的不一样 - V2EX

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这是一个创建于 2302 天前的主题，其中的信息可能已经有所发展或是发生改变。

最近在看《推荐系统实践》，在第二章根据书中的描述下载了数据集“ ml-1m ”，

最终算出来的召回率，准确率等和和书中的表 2-4 有很大区别，有人算过吗，你们的结果和书里一样吗？

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准确率召回率 ml-1m 实践

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