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  2. MapReduce - Wikipedia

    en.wikipedia.org/wiki/MapReduce

    MapReduce is a programming model and an associated implementation for processing and generating big data sets with a parallel and distributed algorithm on a cluster. [1] [2] [3]A MapReduce program is composed of a map procedure, which performs filtering and sorting (such as sorting students by first name into queues, one queue for each name), and a reduce method, which performs a summary ...

  3. Parallelization contract - Wikipedia

    en.wikipedia.org/wiki/Parallelization_contract

    Program structure: PACT allows the composition of arbitrary acyclic data flow graphs. In contract, MapReduce programs have a static structure (Map -> Reduce). Data Model: PACT's data model are records of arbitrary many fields of arbitrary types. MapReduce's KeyValue-Pairs can be considered as records with two fields.

  4. Apache Hadoop - Wikipedia

    en.wikipedia.org/wiki/Apache_Hadoop

    The core of Apache Hadoop consists of a storage part, known as Hadoop Distributed File System (HDFS), and a processing part which is a MapReduce programming model. Hadoop splits files into large blocks and distributes them across nodes in a cluster. It then transfers packaged code into nodes to process the data in parallel.

  5. Data-intensive computing - Wikipedia

    en.wikipedia.org/wiki/Data-intensive_computing

    The programming model for MapReduce architecture is a simple abstraction where the computation takes a set of input key–value pairs associated with the input data and produces a set of output key–value pairs. In the Map phase, the input data is partitioned into input splits and assigned to Map tasks associated with processing nodes in the ...

  6. Programming model - Wikipedia

    en.wikipedia.org/wiki/Programming_model

    An example is Spark where Java is the base language, and Spark is the programming model. Execution may be based on what appear to be library calls. Other examples include the POSIX Threads library and Hadoop's MapReduce. [1] In both cases, the execution model of the programming model is different from that of the base language in which the code ...

  7. How presidents have spent their Christmases in office: From ...

    www.aol.com/presidents-spent-christmases-office...

    According to the White House Historical Association, there is a popular myth suggesting that President Theodore Roosevelt banned trees from being cut down and placed in the White House as decoration.

  8. Stream processing - Wikipedia

    en.wikipedia.org/wiki/Stream_processing

    Ateji PX Free Edition, enables a simple expression of stream programming, the actor model, and the MapReduce algorithm on JVM Auto-Pipe, from the Stream Based Supercomputing Lab at Washington University in St. Louis , an application development environment for streaming applications that allows authoring of applications for heterogeneous ...

  9. Family of death row inmate calls for Tennessee governor to ...

    www.aol.com/family-death-row-inmate-calls...

    The family of Tennessee death row inmate Gary Wayne Sutton held a press conference asking Gov. Bill Lee to examine the case for a potential pardon.