The redundancy for universal lossless compression of discrete memoryless sources in Campbell's setting is characterized as a minimax Renyi divergence, which is shown to be equal to the maximal alpha-mutual information via a generalized redundancy-capacity theorem. Special attention is placed on the analysis of the asymptotics of minimax Renyi divergence, which is determined up to a term vanishing in blocklength.
机构:
Zhejiang Gongshang Univ, Sch Stat & Math, Hangzhou 310018, Zhejiang, Peoples R China
East China Univ Sci & Technol, Sch Business, Dept Finance, Shanghai 200237, Peoples R ChinaZhejiang Gongshang Univ, Sch Stat & Math, Hangzhou 310018, Zhejiang, Peoples R China
Nie, Chun-Xiao
Song, Fu-Tie
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机构:
East China Univ Sci & Technol, Sch Business, Dept Finance, Shanghai 200237, Peoples R ChinaZhejiang Gongshang Univ, Sch Stat & Math, Hangzhou 310018, Zhejiang, Peoples R China