نتایج جستجو برای: mapreduce

تعداد نتایج: 3018  

2011
Alexander Alexandrov Stephan Ewen Max Heimel Fabian Hueske Odej Kao Volker Markl Erik Nijkamp Daniel Warneke

Web-Scale Analytical Processing is a much investigated topic in current research. Next to parallel databases, new flavors of parallel data processors have recently emerged. One of the most discussed approaches is MapReduce. MapReduce is highlighted by its programming model: All programs expressed as the second-order functions map and reduce can be automatically parallelized. Although MapReduce ...

Journal: :CoRR 2012
Arif Nurwidyantoro Edi Winarko

In this paper, MapReduce programming model is used to parallelize training and tagging proceess in maximum entropy part of speech tagging for Bahasa Indonesia. In training process, MapReduce model is implemented dictionary, tagtoken, and feature creation. In tagging process, MapReduce is implemented to tag lines of document in parallel. The training experiments showed that total training time u...

Journal: :PVLDB 2011
Herodotos Herodotou Shivnath Babu

MapReduce has emerged as a viable competitor to database systems in big data analytics. MapReduce programs are being written for a wide variety of application domains including business data processing, text analysis, natural language processing, Web graph and social network analysis, and computational science. However, MapReduce systems lack a feature that has been key to the historical succes...

2012
Matthew Felice Pace

The MapReduce framework has been generating a lot of interest in a wide range of areas. It has been widely adopted in industry and has been used to solve a number of non-trivial problems in academia. Putting MapReduce on strong theoretical foundations is crucial in understanding its capabilities. This work links MapReduce to the BSP model of computation, underlining the relevance of BSP to mode...

2012
Diana Moise Gabriel Antoniu Luc Bougé

The MapReduce programming model is widely acclaimed as a key solution to designing data-intensive applications. However, many of the computations that fit this model cannot be expressed as a single MapReduce execution, but require a more complex design. Such applications consisting of multiple jobs chained into a long-running execution are called pipeline MapReduce applications. Standard MapRed...

2010
Naresh Rapolu Karthik Kambatla Suresh Jagannathan Ananth Grama

MapReduce has emerged as a popular programming model for large-scale distributed computing. Its framework enforces strict synchronization between successive map and reduce phases and limited data-sharing within a phase. Use of keyvalue based persistent storage with MapReduce presents intriguing opportunities and challenges. These challenges relate primarily to semantic inconsistencies arising f...

Journal: :Journal of the Korean Data and Information Science Society 2013

2013
Zhuoyao Zhang Ludmila Cherkasova Boon Thau Loo

An increasing number of MapReduce applications are written using high-level SQL-like abstractions on top of MapReduce engines. Such programs are translated into MapReduce workflows where the output of one job becomes the input of the next job in a workflow. A user must specify the number of reduce tasks for each MapReduce job in a workflow. The reduce task setting may have a significant impact ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده مهندسی برق و کامپیوتر 1390

ایجاد مدل های برنامه نویسی جدید برای فراهم کردن تجرید سطح بالا از مهمترین روش های به کار گرفته شده برای کاهش نیاز برنامه نویس به تسلط بر جزییات دقیق معماری و ساده سازی برنامه نویسی موازی می باشند. همانطور که پیشتر گفته شد، از پرکاربردترین مدل های معرفی شده برای برنامه نویسی موازی می توان به مدل mapreduce اشاره کرد. کلیدی ترین فایده این مدل این است که به برنامه نویس اجازه می دهد تا فقط و فقط بر ...

Journal: :PVLDB 2011
Herodotos Herodotou Fei Dong Shivnath Babu

MapReduce has emerged as a viable competitor to database systems in big data analytics. MapReduce programs are being written for a wide variety of application domains including business data processing, text analysis, natural language processing, Web graph and social network analysis, and computational science. However, MapReduce systems lack a feature that has been key to the historical succes...

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