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Posted to dev@mahout.apache.org by "Han Hui Wen (JIRA)" <ji...@apache.org> on 2011/08/05 09:31:27 UTC

[jira] [Commented] (MAHOUT-759) improve the output for ItemSimilarityJob

    [ https://issues.apache.org/jira/browse/MAHOUT-759?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13079813#comment-13079813 ] 

Han Hui Wen  commented on MAHOUT-759:
-------------------------------------

Hi,Sebastian

Do you have a plan to do the change ?

> improve the output for ItemSimilarityJob
> ----------------------------------------
>
>                 Key: MAHOUT-759
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-759
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Collaborative Filtering
>    Affects Versions: 0.5
>            Reporter: Han Hui Wen 
>            Assignee: Sean Owen
>            Priority: Minor
>              Labels: ItemSimilarityJob,, Mahout
>             Fix For: 0.6
>
>
> Now the output of ItemSimilarityJob like following:
> -7757148334301255842	8179634876330318523	0.003430531732418525
> -7748456450926673883	-4835531939219667484	0.2
> -7748456450926673883	-4314955996498817413	0.5
> -7748456450926673883	2808714190706572296	0.16666666666666666
> -7748456450926673883	6553837338030757853	0.14285714285714285
> -7748456450926673883	8751415108300656176	0.25
> -7747582778903926086	-7015341798833970389	0.05
> -7745456649800833279	-4355275072474512298	4.2444821731748726E-4
> -7743453627722079138	-3667977661496669483	0.0625
> -7743453627722079138	5506208171850960507	0.0625
> -7743453627722079138	7221367701058721462	0.0625
> -7721326863046534787	4345458182369739840	0.1111111111111111
> It's hard to store and view those similar items for one item. can we traverse   them same as RecommenderJob like following:
> -9220680374247203656	[1352180348488328600:2.5,-7757148334301255842:2.5,-7490490145790861630:2.5,-2522983126042570313:2.5,-6799281597153282746:2.5,2068144185705723774:2.5,-6007350693723349387:2.5,-6926986971196173463:2.5,5406899818760113425:2.5,-1490410533166829581:2.5,-27094582027403342:2.5,5665136340246000627:2.5]
> -9218599019595753787	[7535853797920985421:2.5,6375444791143058470:2.5,-6278686364859964742:2.5,4842183991621375854:2.5,-5371123101058190798:2.5,8606934083257321678:2.5,8043580185091202137:2.5,5264973095582397115:2.5,1990532764981555035:2.5,5406899818760113425:2.5,-5208048021997301514:2.5,-5565838412826072017:2.5]

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