国家自然科学基金(s61271199)

作品数:2被引量:4H指数:2
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相关期刊:《Science China(Information Sciences)》《Journal of Electronics(China)》更多>>
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Accurate inference of user popularity preference in a large-scale online video streaming system被引量:2
《Science China(Information Sciences)》2018年第1期260-262,共3页Xiaoying TAN Yuchun Guo Yishuai CHEN Wei ZHU 
supported by National Natural Science Foundation of China (Grant Nos. 61271199, 61301082, 61572071)
With the fast growth of online video services,the service providers pursue to satisfy users’personal preferences.Most of them have noticed the diversity of users’preferences on video content but not that on video po...
关键词:Accurate inference of user popularity a large-scale online video streaming system 
NEW CONSTRUCTIONS OF LDPC CODES BASED ON CIRCULANT PERMUTATION MATRICES FOR AWGN CHANNEL被引量:2
《Journal of Electronics(China)》2014年第2期85-91,共7页Song Zixi Zhang Lijun 
Supported by the National Natural Science Foundation of China(Nos.61271199,61172022)
Two new design approaches for constructing Low-Density Parity-Check(LDPC) codes are proposed.One is used to design regular Quasi-Cyclic LDPC(QC-LDPC) codes with girth at least 8.The other is used to design irregular L...
关键词:Circulant Permutation Matrices(CPMs) Euclidean geometry Error floor Irregular LDPC codes Quasi-cyclic 
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