Mapper converts each row to a **key, value** pair: category, cost.

The president’s proposals, included in the budget he will release on Thursday, are expected to heavily feature tax increases on corporations and high earners. By Jim Tankersley WASHINGTON — President ...

Abstract: A large fraction of MapReduce execution time is spent processing the Map phase, and a large fraction of Map phase execution time is spent sorting the intermediate key-value pairs generated ...

A REST-based service that translates the SQL query into MapReduce and Spark jobs. It runs these jobs and provides the JSON object. SQL to MapReduce and Spark translator.

Google Inc. late last week claimed that results of in-house data-sorting tests bolster its claims that its MapReduce technology can manipulate more data faster than any conventional database.