| Presentation | 2000/3/16 Competitive Optimality of Alphabetic Codes Go Maruyama, Hirosuke Yamamoto, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A FV code is called an alphabetic code if its codewords satisfy the same order as source symbols. The averagely optimal alphabetic code that attains the minimum average codeword length can be obtained by Hu-Tucker algorithm, Garsia-Wachs algorithm, etc. However, the competitively optimal alphabetic code has not been studied yet. In this paper, the competitive optimality is considered for alphabetic codes, and the following are proved. (1)The competitively optimal alphabetic code does not always exist for a given source probability distribution. (2)In the case that the competitively optimal alphabetic code exists, it is also averagely optimal. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | alphabetic code / averagely optimal code / competitively optimal code / lmcp. |
| Paper # | IT99-72,ISEC99-111,SST99-120 |
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| Conference Information | |
| Committee | ISEC |
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| Conference Date | 2000/3/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Information Security (ISEC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Competitive Optimality of Alphabetic Codes |
| Sub Title (in English) | |
| Keyword(1) | alphabetic code |
| Keyword(2) | averagely optimal code |
| Keyword(3) | competitively optimal code |
| Keyword(4) | lmcp. |
| 1st Author's Name | Go Maruyama |
| 1st Author's Affiliation | Department of Mathematical Engineering and Information Physics, University of Tokyo() |
| 2nd Author's Name | Hirosuke Yamamoto |
| 2nd Author's Affiliation | Department of Mathematical Engineering and Information Physics, University of Tokyo |
| Date | 2000/3/16 |
| Paper # | IT99-72,ISEC99-111,SST99-120 |
| Volume (vol) | vol.99 |
| Number (no) | 701 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |