socialmf好像公式弄错了

guoguibing / librec

LibRec: A Leading Java Library for Recommender Systems, see

https://www.librec.net/

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socialmf好像公式弄错了 #211

Closed murdonson closed 7 years ago

murdonson commented 7 years ago

我个人觉得应该是这样啊 -regSocial (userFactors.get(trustedUserIdx, factorIdx) -(trustedValue / numTrusted) sumDiffs[factorIdx] / numTrust) 按照我那样改后指标有一点点的提升对不亚童?

SunYatong commented 7 years ago

Hi, I checked the reference paper and found that the original implementation is the same with the paper, however your version loses "(trustedValue / numTrusted)" for "userFactors.get(trustedUserIdx, factorIdx)".

As shown in the picture below :

murdonson commented 7 years ago

嗯嗯我搞错了 3q