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From "Behroz Sikander (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HAMA-941) Semiclustering Termination
Date Thu, 05 May 2016 22:15:12 GMT

    [ https://issues.apache.org/jira/browse/HAMA-941?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15273209#comment-15273209
] 

Behroz Sikander edited comment on HAMA-941 at 5/5/16 10:14 PM:
---------------------------------------------------------------

So, I tried the semiclustering example again by changing the input a little bit and the test
case fails. Even though it should pass. In the semiclustering.txt, I connected vertex 0 with
vertex 1 and gave the edge a weight of 0.1. Here is the output which contains only 9 clusters
instead of 10 and cluster C124546 has completly wrong output.
{code}
C1647421 = [32, 35, 38, 36, 30, 33, 39, 31, 37, 34]
C1770553 = [71, 74, 77, 72, 75, 78, 70, 73, 76, 79]
C1616638 = [26, 23, 20, 29, 27, 24, 21, 22, 25, 28]
C124546 = [0, 10]
C1832119 = [95, 98, 92, 96, 90, 99, 93, 97, 91, 94]
C1739770 = [65, 68, 62, 63, 69, 66, 60, 64, 67, 61]
C1678204 = [44, 41, 47, 48, 42, 45, 49, 46, 40, 43]
C1801336 = [80, 89, 83, 86, 87, 81, 84, 85, 88, 82]
C1708987 = [53, 50, 56, 59, 51, 57, 54, 55, 58, 52]
{code}


was (Author: bsikander):
So, I tried the semiclustering example again by changing the input a little bit and the test
case fails. Even though it should pass. In the semiclustering.txt, I connected vertex 0 with
vertex 1 and gave the edge a weight of 0.1. Here is the output which contains only 9 clusters
instead of 10 and cluster C124546 has completly wrong output.
C1647421 = [32, 35, 38, 36, 30, 33, 39, 31, 37, 34]
C1770553 = [71, 74, 77, 72, 75, 78, 70, 73, 76, 79]
C1616638 = [26, 23, 20, 29, 27, 24, 21, 22, 25, 28]
C124546 = [0, 10]
C1832119 = [95, 98, 92, 96, 90, 99, 93, 97, 91, 94]
C1739770 = [65, 68, 62, 63, 69, 66, 60, 64, 67, 61]
C1678204 = [44, 41, 47, 48, 42, 45, 49, 46, 40, 43]
C1801336 = [80, 89, 83, 86, 87, 81, 84, 85, 88, 82]
C1708987 = [53, 50, 56, 59, 51, 57, 54, 55, 58, 52]

> Semiclustering Termination
> --------------------------
>
>                 Key: HAMA-941
>                 URL: https://issues.apache.org/jira/browse/HAMA-941
>             Project: Hama
>          Issue Type: Improvement
>          Components: examples, graph
>            Reporter: Edward J. Yoon
>            Priority: Minor
>
> Currently Semiclustering example will be terminated when the number of iterations exceeded
the predefined threshold max iteration.
> App should be stopped if there's no cluster changes (I guess). Please check and improve
it.



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