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Posted to dev@mahout.apache.org by "Ted Dunning (JIRA)" <ji...@apache.org> on 2010/07/27 08:27:15 UTC
[jira] Created: (MAHOUT-449) negative binomial distribution
afflicted by confused conventions
negative binomial distribution afflicted by confused conventions
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Key: MAHOUT-449
URL: https://issues.apache.org/jira/browse/MAHOUT-449
Project: Mahout
Issue Type: Bug
Reporter: Ted Dunning
There are several was that the negative binomial distribution can be defined. Our current implementation uses all of them with predictable problems resulting.
I have fairly comprehensive test cases and bug fixes that make this right.
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[jira] Updated: (MAHOUT-449) negative binomial distribution
afflicted by confused conventions
Posted by "Ted Dunning (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ted Dunning updated MAHOUT-449:
-------------------------------
Status: Patch Available (was: Open)
Patch attached. Commit coming.
> negative binomial distribution afflicted by confused conventions
> ----------------------------------------------------------------
>
> Key: MAHOUT-449
> URL: https://issues.apache.org/jira/browse/MAHOUT-449
> Project: Mahout
> Issue Type: Bug
> Reporter: Ted Dunning
> Assignee: Ted Dunning
> Attachments: MAHOUT-449.patch
>
>
> There are several was that the negative binomial distribution can be defined. Our current implementation uses all of them with predictable problems resulting.
> I have fairly comprehensive test cases and bug fixes that make this right.
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You can reply to this email to add a comment to the issue online.
[jira] Commented: (MAHOUT-449) negative binomial distribution
afflicted by confused conventions
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12892679#action_12892679 ]
Hudson commented on MAHOUT-449:
-------------------------------
Integrated in Mahout-Quality #159 (See [http://hudson.zones.apache.org/hudson/job/Mahout-Quality/159/])
MAHOUT-449 - NegativeBinomial needs fixing
Added test cases for NegativeBinomial and underlying integrals like incompleteBeta.
Added log case for Gamma.beta(alpha, beta) computation
Tested Gamma.gamma, Gamma.incompleteBeta,
Improved error messages and comments
Normalized variable names for Gamma distribution
Tested Gamma.pdf and cdf
Fixed confused conventions in NegativeBinomial
Added google guava library to dependencies
> negative binomial distribution afflicted by confused conventions
> ----------------------------------------------------------------
>
> Key: MAHOUT-449
> URL: https://issues.apache.org/jira/browse/MAHOUT-449
> Project: Mahout
> Issue Type: Bug
> Reporter: Ted Dunning
> Assignee: Ted Dunning
> Attachments: MAHOUT-449.patch
>
>
> There are several was that the negative binomial distribution can be defined. Our current implementation uses all of them with predictable problems resulting.
> I have fairly comprehensive test cases and bug fixes that make this right.
--
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You can reply to this email to add a comment to the issue online.
[jira] Assigned: (MAHOUT-449) negative binomial distribution
afflicted by confused conventions
Posted by "Ted Dunning (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ted Dunning reassigned MAHOUT-449:
----------------------------------
Assignee: Ted Dunning
> negative binomial distribution afflicted by confused conventions
> ----------------------------------------------------------------
>
> Key: MAHOUT-449
> URL: https://issues.apache.org/jira/browse/MAHOUT-449
> Project: Mahout
> Issue Type: Bug
> Reporter: Ted Dunning
> Assignee: Ted Dunning
> Attachments: MAHOUT-449.patch
>
>
> There are several was that the negative binomial distribution can be defined. Our current implementation uses all of them with predictable problems resulting.
> I have fairly comprehensive test cases and bug fixes that make this right.
--
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You can reply to this email to add a comment to the issue online.
[jira] Updated: (MAHOUT-449) negative binomial distribution
afflicted by confused conventions
Posted by "Sean Owen (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean Owen updated MAHOUT-449:
-----------------------------
Status: Resolved (was: Patch Available)
Fix Version/s: 0.4
Resolution: Fixed
> negative binomial distribution afflicted by confused conventions
> ----------------------------------------------------------------
>
> Key: MAHOUT-449
> URL: https://issues.apache.org/jira/browse/MAHOUT-449
> Project: Mahout
> Issue Type: Bug
> Reporter: Ted Dunning
> Assignee: Ted Dunning
> Fix For: 0.4
>
> Attachments: MAHOUT-449.patch
>
>
> There are several was that the negative binomial distribution can be defined. Our current implementation uses all of them with predictable problems resulting.
> I have fairly comprehensive test cases and bug fixes that make this right.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
[jira] Updated: (MAHOUT-449) negative binomial distribution
afflicted by confused conventions
Posted by "Ted Dunning (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAHOUT-449?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Ted Dunning updated MAHOUT-449:
-------------------------------
Attachment: MAHOUT-449.patch
Here is the patch.
I am going to commit this in any case shortly. The patch is for reference and paper trail on the changes.
> negative binomial distribution afflicted by confused conventions
> ----------------------------------------------------------------
>
> Key: MAHOUT-449
> URL: https://issues.apache.org/jira/browse/MAHOUT-449
> Project: Mahout
> Issue Type: Bug
> Reporter: Ted Dunning
> Attachments: MAHOUT-449.patch
>
>
> There are several was that the negative binomial distribution can be defined. Our current implementation uses all of them with predictable problems resulting.
> I have fairly comprehensive test cases and bug fixes that make this right.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.