| Paper Abstract and Keywords |
| Presentation |
2007-01-30 11:20
A performance of LZ78 code for Non-prefix-free Word-valued source
Takashi Ishida, Toshiyasu Matsushima, Shigeichi Hirasawa (Waseda Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
A word-valued source (WVS) is a new class of information source models.
It is defined as a source which has a probability distribution over a 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.
Furthermore, there are theoretical arguments about universal code for the source.
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 investigate the property of the non-prefix-free WVS comparing the redundancy of the LZ78 code for various sources by numerical experiments. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
word-valued source / entoropy rate / prefix-free / LZ code / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 106, no. 516, IT2006-52, pp. 13-18, Jan. 2007. |
| Paper # |
IT2006-52 |
| Date of Issue |
2007-01-23 (IT) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
IT |
| Conference Date |
2007-01-30 - 2007-01-30 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Osaka Electro-Communication University |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
general |
| Paper Information |
| Registration To |
IT |
| Conference Code |
2007-01-IT |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
A performance of LZ78 code for Non-prefix-free Word-valued source |
| Sub Title (in English) |
|
| Keyword(1) |
word-valued source |
| Keyword(2) |
entoropy rate |
| Keyword(3) |
prefix-free |
| Keyword(4) |
LZ code |
| Keyword(5) |
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| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Takashi Ishida |
| 1st Author's Affiliation |
Waseda University (Waseda Univ.) |
| 2nd Author's Name |
Toshiyasu Matsushima |
| 2nd Author's Affiliation |
Waseda University (Waseda Univ.) |
| 3rd Author's Name |
Shigeichi Hirasawa |
| 3rd Author's Affiliation |
Waseda University (Waseda Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2007-01-30 11:20:00 |
| Presentation Time |
25 minutes |
| Registration for |
IT |
| Paper # |
IT2006-52 |
| Volume (vol) |
vol.106 |
| Number (no) |
no.516 |
| Page |
pp.13-18 |
| #Pages |
6 |
| Date of Issue |
2007-01-23 (IT) |