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Date: Wed, 18 Mar 2015 08:55:38 +0000 (UTC)
From: "Till Rohrmann (JIRA)" <jira@apache.org>
To: dev@flink.incubator.apache.org
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Subject: [jira] [Created] (FLINK-1717) Add support to read libSVM and
 SVMLight input files
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Till Rohrmann created FLINK-1717:
------------------------------------

             Summary: Add support to read libSVM and SVMLight input files
                 Key: FLINK-1717
                 URL: https://issues.apache.org/jira/browse/FLINK-1717
             Project: Flink
          Issue Type: Improvement
            Reporter: Till Rohrmann


In order to train SVMs, the machine learning library should be able to read standard SVM input file formats. A widespread format is used by libSVM and SMVLight which has the following format:

<line> .=. <target> <feature>:<value> <feature>:<value> ... <feature>:<value> # <info>
<target> .=. +1 | -1 | 0 | <float> 
<feature> .=. <integer> | "qid"
<value> .=. <float>
<info> .=. <string>

Details can be found [here|http://svmlight.joachims.org/] and [here|http://www.csie.ntu.edu.tw/~cjlin/libsvm/faq.html#/Q03:_Data_preparation]



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