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BoLing edited comment on SPARK-20805 at 5/20/17 4:31 AM: --------------------------------------------------------- hi, @Sean Owen, you can see this url https://github.com/NewBoLing/GraphSVD-/blob/master/SVDPlusPlus was (Author: boling): hi, Sean Owen, you can see this url https://github.com/NewBoLing/GraphSVD-/blob/master/SVDPlusPlus > updated updateP in SVD++ is error > ---------------------------------- > > Key: SPARK-20805 > URL: https://issues.apache.org/jira/browse/SPARK-20805 > Project: Spark > Issue Type: Bug > Components: GraphX > Affects Versions: 1.6.1, 2.1.1 > Reporter: BoLing > > In algorithm svd++, we all known that the usr._2 store the value of pu + > |N(u)|^(-0.5)*sum(y); the function sendMsgTrainF compute the updated value of > updateP,updateQ and updateY. At the beginning,the cycle iteration update the > part of y in usr._2, but pu is never updated. so we should fix the > sendMessageToSrcFunction in sendMsgTrainF. the old code is > ctx.sendToSrc((updateP, updateY, (err - conf.gamma6 * usr._3) * > conf.gamma1)). if we fix like that ctx.sendToSrc((updateP, updateP, (err - > conf.gamma6 * usr._3) * conf.gamma1)), it maybe arrive the effect we want. -- This message was sent by Atlassian JIRA (v6.3.15#6346) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org