Presentation 2019-03-07
Analysis of Zero-Redundancy Estimator with a Finite Window for Markovian Source
Yusuke Hashimoto, Tstutomu Kawabata,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) A Bayesian (Laplace or Krichevski-Trofimov) estimator for Markov source can be used to build a losslesssource code. However it achieves the first order asymptotic optimal redundancy, only when the actual predictiveprobabilities are all positive. In the other case, that is when the actual alphabet is unknown, we can modify theestimator into a zero-redundancy estimator. We have previously applied the idea in the finite window setting, andhave shown the first order asymptotic optimality of the redundancy, when the probability is positive on an unknownalphabet. Our work further proposes an estimator, in the same finite window setting, when the actual alphabet arestate wise unkown, which we believe is a useful case, and claims without proof the first order asymptotic optimalityof the redundancy. In this paper, we prove the last claim.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Markov source / lossless source coding / finite window / asymptotic redundancy / zero-redundancy estimator
Paper # IT2018-89,ISEC2018-95,WBS2018-90
Date of Issue 2019-02-28 (IT, ISEC, WBS)

Conference Information
Committee IT / ISEC / WBS
Conference Date 2019/3/7(2days)
Place (in Japanese) (See Japanese page)
Place (in English) University of Electro-Communications
Topics (in Japanese) (See Japanese page)
Topics (in English) joint meeting of IT, ISEC, and WBS
Chair Jun Muramatsu(NTT) / Atsushi Fujioka(Kanagawa Univ.) / Minoru Okada(NAIST)
Vice Chair Tadashi Wadayama(Nagoya Inst. of Tech.) / Shiho Moriai(NICT) / Shoichi Hirose(Univ. of Fukui) / Koji Ohuchi(Shizuoka Univ.) / Kenichi Takizawa(NICT)
Secretary Tadashi Wadayama(Nagano Pref Inst. of Tech.) / Shiho Moriai(UEC) / Shoichi Hirose(Tokai Univ.) / Koji Ohuchi(NICT) / Kenichi Takizawa(Ibaraki Univ.)
Assistant Takahiro Yoshida(Yokohama College of Commerce) / Kazunari Omote(Tsukuba Univ.) / Yuuji Suga(IIJ) / Ryohei Nakamura(National Defense Academy) / Duong Quang Thang(NAIST)

Paper Information
Registration To Technical Committee on Information Theory / Technical Committee on Information Security / Technical Committee on Wideband System
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Analysis of Zero-Redundancy Estimator with a Finite Window for Markovian Source
Sub Title (in English) When the Statewise Alphabets are Unknown
Keyword(1) Markov source
Keyword(2) lossless source coding
Keyword(3) finite window
Keyword(4) asymptotic redundancy
Keyword(5) zero-redundancy estimator
1st Author's Name Yusuke Hashimoto
1st Author's Affiliation Univeristy of Electro-Communications(Univ. of Electro-Comm.)
2nd Author's Name Tstutomu Kawabata
2nd Author's Affiliation Univeristy of Electro-Communications(Univ. of Electro-Comm.)
Date 2019-03-07
Paper # IT2018-89,ISEC2018-95,WBS2018-90
Volume (vol) vol.118
Number (no) IT-477,ISEC-478,WBS-479
Page pp.pp.85-90(IT), pp.85-90(ISEC), pp.85-90(WBS),
#Pages 6
Date of Issue 2019-02-28 (IT, ISEC, WBS)