It's still included in SimilarityMatrixRowWrapperMapper. We also have a unit test that checks whether a user is only recommended unknown items which still works.
--sebastian On 20.10.2011 12:10, Sean Owen wrote: > Hmm, Sebastian do you know where this went? In RecommenderJob, I only > see ItemFilterAsVectorAndPrefsReducer doing this, but it only applies > to the filters file. I don't see where the original input is also used > to filter. Did this get lost or am I missing it? > > 2011/10/20 WangRamon <[email protected]>: >> >> Yes, I'm pretty sure about this. Is this NaN setting exist in Mahout 0.5? Or >> it only in Mahout 0.6? Could you please show me the line, thank you very >> much. Thanks Ramon >> > Date: Thu, 20 Oct 2011 10:44:01 +0100 >>> Subject: Re: Recommend result contains item which user has already given >>> preference, is that correct? >>> From: [email protected] >>> To: [email protected] >>> >>> No, it shouldn't. Are you sure about this? You can see the stage where >>> it excludes these items by setting their values to NaN, just before >>> AggregateAndRecommend. Did you modify this stage or exclude it? >>> >>> 2011/10/20 WangRamon <[email protected]>: >>>> >>>> >>>> >>>> >>>> Hi Guys I finished running the RecommenderJob today on the two nodes >>>> cluster, finally. But what suprised me is that the final recommend output >>>> of the RecommenderJob contains item which user has already given >>>> preference, I'm not sure is that correct? If it was wrong how can I >>>> resolve this problem? Thanks a lot. Cheers Ramon >>
