You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@spark.apache.org by "BoLing (JIRA)" <ji...@apache.org> on 2017/05/20 05:16:04 UTC
[jira] [Issue Comment Deleted] (SPARK-20805) updated updateP in
SVD++ is error
[ https://issues.apache.org/jira/browse/SPARK-20805?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
BoLing updated SPARK-20805:
---------------------------
Comment: was deleted
(was: 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-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org