Presentation 2003/5/23
Properties of a Word-valued Source with a Non-prefix-free Word Set
Takashi ISHIDA, Masayuki GOTO, Toshiyasu MATSUSHIMA, Shigeichi HIRASAWA,
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Abstract(in English) Recently, word-valued source is proposed as a new class of source models. A word-valued source is defined as a source which has a probability distribution over word set. When the word set is prefix-free, it has been shown that there exists entropy rate of the source with simple expression and the AEP holds. However, when the word set is not prefix-free, it has been shown only the upper bound and lower bound on the entropy rate of the source. In this paper, we verify the entropy rate of the source by numerical computations for some source models in order to clarify the properties of the word-valued source.
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Keyword(in English) source coding / word-valued source / entoropy rate / asymptotic equipartition property (AEP)
Paper # IT2003-5(2003-5)
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Committee IT
Conference Date 2003/5/23(1days)
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Registration To Information Theory (IT)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Properties of a Word-valued Source with a Non-prefix-free Word Set
Sub Title (in English)
Keyword(1) source coding
Keyword(2) word-valued source
Keyword(3) entoropy rate
Keyword(4) asymptotic equipartition property (AEP)
1st Author's Name Takashi ISHIDA
1st Author's Affiliation School of Science and Engineering, Waseda University()
2nd Author's Name Masayuki GOTO
2nd Author's Affiliation Faculty of Environmental and Information Studies, Musashi Institute of Technology
3rd Author's Name Toshiyasu MATSUSHIMA
3rd Author's Affiliation School of Science and Engineering, Waseda University
4th Author's Name Shigeichi HIRASAWA
4th Author's Affiliation School of Science and Engineering, Waseda University
Date 2003/5/23
Paper # IT2003-5(2003-5)
Volume (vol) vol.103
Number (no) 99
Page pp.pp.-
#Pages 6
Date of Issue