Redundancy estimates for the Lempel-Ziv algorithm of data compression

被引：6
|
作者：
Potapov, VN [1 ]
机构：
[1] SB RAS, Sobolev Inst Math, Novosibirsk 630090, Russia
来源：
DISCRETE APPLIED MATHEMATICS | 2004年 / 135卷 / 1-3期
基金：
俄罗斯基础研究基金会;
关键词：
data compression; Lempel-Ziv algorithm;
D O I：
10.1016/S0166-218X(02)00308-6
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
The problem of non-distorting compression (or coding) of sequences of symbols is considered. For sequences of asymptotically zero empirical entropy, a modification of the Lempel-Ziv coding rule is offered whose coding cost is at most a finite number of times worse than the optimum. A combinatorial proof is offered for the well-known redundancy estimate of the Lempel-Ziv coding algorithm for sequences having a positive entropy. (C) 2002 Elsevier B.V. All rights reserved.
引用
收藏
页码：245 / 254
页数：10
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