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https://issues.apache.org/jira/browse/MAHOUT-835?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13125909#comment-13125909
 ] 

Hudson commented on MAHOUT-835:
-------------------------------

Integrated in Mahout-Quality #1091 (See 
[https://builds.apache.org/job/Mahout-Quality/1091/])
    MAHOUT-835 removed all code related to OOB computation

adeneche : 
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1181625
Files : 
* /mahout/trunk/core/src/main/java/org/apache/mahout/df/Bagging.java
* /mahout/trunk/core/src/main/java/org/apache/mahout/df/DecisionForest.java
* /mahout/trunk/core/src/main/java/org/apache/mahout/df/callback
* /mahout/trunk/core/src/main/java/org/apache/mahout/df/mapreduce/Builder.java
* 
/mahout/trunk/core/src/main/java/org/apache/mahout/df/mapreduce/MapredMapper.java
* 
/mahout/trunk/core/src/main/java/org/apache/mahout/df/mapreduce/inmem/InMemBuilder.java
* 
/mahout/trunk/core/src/main/java/org/apache/mahout/df/mapreduce/inmem/InMemMapper.java
* 
/mahout/trunk/core/src/main/java/org/apache/mahout/df/mapreduce/partial/InterResults.java
* 
/mahout/trunk/core/src/main/java/org/apache/mahout/df/mapreduce/partial/PartialBuilder.java
* 
/mahout/trunk/core/src/main/java/org/apache/mahout/df/mapreduce/partial/Step0Job.java
* 
/mahout/trunk/core/src/main/java/org/apache/mahout/df/mapreduce/partial/Step1Mapper.java
* 
/mahout/trunk/core/src/main/java/org/apache/mahout/df/mapreduce/partial/Step2Job.java
* 
/mahout/trunk/core/src/main/java/org/apache/mahout/df/mapreduce/partial/Step2Mapper.java
* 
/mahout/trunk/core/src/main/java/org/apache/mahout/df/ref/SequentialBuilder.java
* 
/mahout/trunk/core/src/test/java/org/apache/mahout/df/mapreduce/partial/InterResultsTest.java
* 
/mahout/trunk/core/src/test/java/org/apache/mahout/df/mapreduce/partial/PartialBuilderTest.java
* 
/mahout/trunk/core/src/test/java/org/apache/mahout/df/mapreduce/partial/PartialSequentialBuilder.java
* 
/mahout/trunk/core/src/test/java/org/apache/mahout/df/mapreduce/partial/PartitionBugTest.java
* 
/mahout/trunk/core/src/test/java/org/apache/mahout/df/mapreduce/partial/Step0JobTest.java
* 
/mahout/trunk/core/src/test/java/org/apache/mahout/df/mapreduce/partial/Step1MapperTest.java
* 
/mahout/trunk/core/src/test/java/org/apache/mahout/df/mapreduce/partial/Step2MapperTest.java
* /mahout/trunk/examples/src/main/java/org/apache/mahout/df/BreimanExample.java
* 
/mahout/trunk/examples/src/main/java/org/apache/mahout/df/mapreduce/BuildForest.java

                
> Don't compute out of bag error for Decision Forests
> ---------------------------------------------------
>
>                 Key: MAHOUT-835
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-835
>             Project: Mahout
>          Issue Type: Improvement
>          Components: Classification
>    Affects Versions: 0.6
>            Reporter: Deneche A. Hakim
>            Assignee: Deneche A. Hakim
>             Fix For: 0.6
>
>
> The current implementation of Decision Forests makes a lot of assumption 
> about how Hadoop works when computing the out-of-bag error. Removing these 
> calculations not only makes the code run faster, it's also less buggier and 
> won't break easily when a new version of Hadoop is used.

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