[
https://issues.apache.org/jira/browse/MAHOUT-688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13163865#comment-13163865
]
Hudson commented on MAHOUT-688:
-------------------------------
Integrated in Mahout-Quality #1230 (See
[https://builds.apache.org/job/Mahout-Quality/1230/])
MAHOUT-688: Hook in high df pruning based on variance
gsingers :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1210994
Files :
* /mahout/trunk/core/src/main/java/org/apache/mahout/common/HadoopUtil.java
* /mahout/trunk/core/src/main/java/org/apache/mahout/math/hadoop/stats
*
/mahout/trunk/core/src/main/java/org/apache/mahout/math/hadoop/stats/BasicStats.java
*
/mahout/trunk/core/src/main/java/org/apache/mahout/math/hadoop/stats/StandardDeviationCalculatorMapper.java
*
/mahout/trunk/core/src/main/java/org/apache/mahout/math/hadoop/stats/StandardDeviationCalculatorReducer.java
*
/mahout/trunk/core/src/main/java/org/apache/mahout/vectorizer/DictionaryVectorizer.java
*
/mahout/trunk/core/src/main/java/org/apache/mahout/vectorizer/HighDFWordsPruner.java
*
/mahout/trunk/core/src/main/java/org/apache/mahout/vectorizer/SparseVectorsFromSequenceFiles.java
*
/mahout/trunk/core/src/main/java/org/apache/mahout/vectorizer/VectorizerConfig.java
* /mahout/trunk/core/src/main/java/org/apache/mahout/vectorizer/pruner
*
/mahout/trunk/core/src/main/java/org/apache/mahout/vectorizer/pruner/PrunedPartialVectorMergeReducer.java
*
/mahout/trunk/core/src/main/java/org/apache/mahout/vectorizer/pruner/WordsPrunerReducer.java
*
/mahout/trunk/core/src/main/java/org/apache/mahout/vectorizer/tfidf/TFIDFConverter.java
*
/mahout/trunk/core/src/main/java/org/apache/mahout/vectorizer/tfidf/TFIDFPartialVectorReducer.java
* /mahout/trunk/core/src/test/java/org/apache/mahout/math/hadoop/stats
*
/mahout/trunk/core/src/test/java/org/apache/mahout/math/hadoop/stats/BasicStatsTest.java
*
/mahout/trunk/core/src/test/java/org/apache/mahout/vectorizer/DictionaryVectorizerTest.java
*
/mahout/trunk/core/src/test/java/org/apache/mahout/vectorizer/HighDFWordsPrunerTest.java
*
/mahout/trunk/core/src/test/java/org/apache/mahout/vectorizer/SparseVectorsFromSequenceFilesTest.java
* /mahout/trunk/math/src/main/java/org/apache/mahout/math/Vector.java
> High Document Frequency pruning for seq2sparse
> ----------------------------------------------
>
> Key: MAHOUT-688
> URL: https://issues.apache.org/jira/browse/MAHOUT-688
> Project: Mahout
> Issue Type: Improvement
> Reporter: Vasil Vasilev
> Assignee: Grant Ingersoll
> Priority: Minor
> Labels: Vectorization
> Fix For: 0.6
>
> Attachments: MAHOUT-688.patch, MAHOUT-688.patch, MAHOUT-688.patch,
> MAHOUT-688.patch
>
>
> This improvement allows to prune the words with high document frequencies
> from the tf and tf-idf vectors produced by seq2sparse, based on the standard
> deviation of the words' document frequencies and specifying which rods to be
> pruned in a means of times this standard deviation. One good option is 3
> times the standard deviation
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
