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From "Faraz Ahmad (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-5118) Inverted Index
Date Fri, 29 Mar 2013 10:25:16 GMT
Faraz Ahmad created MAPREDUCE-5118:
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             Summary: Inverted Index
                 Key: MAPREDUCE-5118
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5118
             Project: Hadoop Map/Reduce
          Issue Type: Sub-task
          Components: benchmarks
            Reporter: Faraz Ahmad
            Assignee: Faraz Ahmad


Inverted-Index takes a list of documents as input and generates word-to-document indexing.
Map emits <word, docId> tuples with each word emitted once per docId. Reduce combines
all tuples on key <word> and emits <word,list(docId)> tuples after removing duplicates.

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