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From "David Stefka (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MATH-207) Implementation of GeneticAlgorithm.nextGeneration() is wrong
Date Thu, 19 Mar 2009 15:47:50 GMT

    [ https://issues.apache.org/jira/browse/MATH-207?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12683493#action_12683493
] 

David Stefka commented on MATH-207:
-----------------------------------

ad 1) what do you mean by "file a CLA"? Should I include the license header (e.g. in GeneticAlgorithm.java)
to every file in the framework? I do own the code and I agree with the Apache license (http://www.apache.org/licenses/LICENSE-2.0)
ad 2) okay, i will try to make it Java 1.5+ compatible

BTW, I am currently working on a better way of representing permutations, so do not include
the original patch now. I will post here a revised version of the implementation in a week
or so.

> Implementation of GeneticAlgorithm.nextGeneration() is wrong
> ------------------------------------------------------------
>
>                 Key: MATH-207
>                 URL: https://issues.apache.org/jira/browse/MATH-207
>             Project: Commons Math
>          Issue Type: Bug
>    Affects Versions: 2.0
>            Reporter: David Stefka
>            Assignee: Phil Steitz
>             Fix For: 2.0
>
>         Attachments: geneticalgorithm.patch, genetics_impl.zip, patch
>
>   Original Estimate: 0.17h
>  Remaining Estimate: 0.17h
>
> The implementation of GeneticAlgorithm.nextGeneration() is wrong, since the only way
how a Chromosome can get into the new generation is by mutation. 
> Enclosed, I am sending a patch for this.

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