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EE模型 #154

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lin171110 opened this issue Mar 28, 2019 · 4 comments
Closed

EE模型 #154

lin171110 opened this issue Mar 28, 2019 · 4 comments

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@lin171110
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不好意思,又打扰您了,同样的参数设置.为什么EE模型得出来的结果和加入社交信息的模型没多大区别呢?难道又优化了吗?希望有空解答

@Coder-Yu
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你说的是EE和SREE的比较吗?算法的效果跟数据集、参数都有很大关系,建议你换几个数据集试试。另外,explicit social relations不一定都是有用的,有的甚至会起到副作用。这个问题你可以参考我CIKM18的那篇IF-BPR的论文。

@lin171110
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对,我就是在Filmtrust数据集上针对EE和SREE做比较的;另外,论文中针对EE的性能不是和MF差不多吗?为什么跑出来的结果比一些权威的论文好了很多呢

@Coder-Yu
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尽信论文不如无论文^_^
实际上EE能够work是因为加了biase的缘故,基本上加了biase的方法都会比不加的好。你对比下SVD和EE,会发现效果差不多,因为他们都有biase

@lin171110
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好的😄 ,再次感谢

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