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Revision as of 00:53, 7 April 2005 by Alexwg (talk | contribs) (New definition)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)In Google's MapReduce programming model, parallel computations over large data sets are implemented by specifying a Map function that maps key-value pairs to new key-value pairs and a subsequent Reduce function that consolidates all mapped key-value pairs sharing the same keys to single key-value pairs.