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https://issues.apache.org/jira/browse/MAHOUT-783?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13084816#comment-13084816
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XiaoboGu commented on MAHOUT-783:
---------------------------------
I am sorry, the link above seems not working, so I plaste the original message
here:
ValidateAdaptiveLogistic now has a default option let user specify the
default valuefor confusion matrix, now the output is:
Log-likelihood:Min=-100.00, Max=0.00, Mean=-27.10, Median=0.00
AUC = 0.48
=======================================================
Confusion Matrix
-------------------------------------------------------
a c <--Classified as
9711 0 | 9711 a = normal
0 12833 | 12833 c = anomaly
Default Category: anomaly: 2
Entropy Matrix: [[NaN, NaN], [-0.0, -0.0]]
It seems AUC and Entropy still can't work, and the labels confusion
matrix use should sequencially, that's it should use a, b, c, d, e
....., but here b is not used.
> AUC ConfusionMatrix do not work probably
> ----------------------------------------
>
> Key: MAHOUT-783
> URL: https://issues.apache.org/jira/browse/MAHOUT-783
> Project: Mahout
> Issue Type: Bug
> Components: Classification
> Affects Versions: 0.6
> Reporter: XiaoboGu
>
> I have reported the problem to the dev list, just creating this jira to
> remind the authors of AUC and ConfusionMatrix to help identify the root
> problem, you can see abnormal output of ConfusionMatrix and AUC at here
> http://mail-archives.apache.org/mod_mbox/mahout-dev/201108.mbox/%3cCACOCgcnRbH=xHW6TqkZV_iFdbDPOcqEZ_aHMP8npE7_utE_1=q...@mail.gmail.com%3e
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