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Big Data Storage: Coding Theory Sprouts a New Branch
时间:2017-06-14 00:11    点击:   所属单位:通信工程学院
讲座名称 Big Data Storage: Coding Theory Sprouts a New Branch
讲座时间 2017-06-16 14:30:00
讲座地点 北校区新科技楼 1012会议室
讲座人 Prof. P. Vijay Kumar
讲座人介绍 P. Vijay Kumar received the B.Tech. and M.Tech. degrees from IIT Kharagpur and Kanpur respectively, and the Ph.D. degree from the University of Southern California (USC) in 1983. From 1983 to 2003 he was on the faculty of USC.  Since 2003, he has been on the faculty of the ECE Department of IISc Bengaluru. Since 2010 he is an Adjunct Research Professor at USC.  His research interests include algebraic coding theory  and wireless communication. He received the 1995 IEEE Information Theory Society prize-paper award, a best-paper award at the DCOSS 2008 conference on sensor networks and the IEEE Data Storage best-paper award of 2011/2012. A pseudorandom sequence family designed in a 1996 paper co-authored by him now forms the short scrambling code of the 3G WCDMA cellular standard.   He was the Tata Chem Chair Professor at IISc in 2013-2015.  He was a plenary speaker at the 2014 IEEE International Symposium on Information Theory and is a Fellow of the IEEE, as well as the Indian Academies: INAE, IAS and INSA.
讲座内容 The reliable storage of Big Data across a spatially distributed network of nodes calls for codes than can also efficiently handle node repair.  The need for node repair could arise on account of device failure, need for a maintenance reboot, or simply because the node is busy serving other demands.  A new branch of coding theory has sprung up in response.   Regenerating codes minimize data download during a repair operation, while codes with locality ensure that local operations suffice for node repair. This talk will provide an overview of these recent exciting developments, including fundamental limits and new code constructions, with a bias towards recent results and work by the author's group.
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