Presentation 2017-07-14
Improved Lossless Data Compression via Substring Enumeration with a Finite Alphabet
Takahiro Ota, Hiroyoshi Morita,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Compression by substring enumeration (CSE) is a lossless universal coding algorithm.Experimental results show that the compression performance of the CSE with a binary alphabet is almost the same as that of a popular data compression application while that of the CSE with a finite alphabet is worse. To improve the compression performance, we improve the lower bound of an inequality which plays a key role for compression performance in the CSE with a finite alphabet. Experimental results showed that the proposed CSE based on the improved inequality has almost the same performance of the CSE with a binary alphabet.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) CSE / Data compression / Compression ratio / Antidictionary coding / Compression by substing enumeration
Paper # IT2017-34
Date of Issue 2017-07-06 (IT)

Conference Information
Committee IT
Conference Date 2017/7/13(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Chiba University
Topics (in Japanese) (See Japanese page)
Topics (in English) freshman session, general
Chair Masayoshi Ohashi(Fukuoka Univ.)
Vice Chair Jun Muramatsu(NTT)
Secretary Jun Muramatsu(Yokohama College of Commerce)
Assistant Sigeaki Kuzuoka(wakayama univ.)

Paper Information
Registration To Technical Committee on Information Theory
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Improved Lossless Data Compression via Substring Enumeration with a Finite Alphabet
Sub Title (in English)
Keyword(1) CSE
Keyword(2) Data compression
Keyword(3) Compression ratio
Keyword(4) Antidictionary coding
Keyword(5) Compression by substing enumeration
1st Author's Name Takahiro Ota
1st Author's Affiliation Nagano Prefectural Institute of Technology(Nagano Prefectural Inst. of Tech.)
2nd Author's Name Hiroyoshi Morita
2nd Author's Affiliation The University of Electro-Communications(UEC)
Date 2017-07-14
Paper # IT2017-34
Volume (vol) vol.117
Number (no) IT-120
Page pp.pp.103-108(IT),
#Pages 6
Date of Issue 2017-07-06 (IT)