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Paper Abstract and Keywords
Presentation 2024-05-30 13:40
Maximum redundancy of ternary AIFV codes is 1/2
Mayu Mori, Kengo Hashimoto, Ken-ichi Iwata (Univ. of Fukui), Hirosuke Yamamoto (The Univ. of Tokyo) IT2024-3 EMM2024-3
Abstract (in Japanese) (See Japanese page) 
(in English) As almost instantaneous codes, Yamamoto et al. proposed k-nary AIFV codes in 2015 that are uniquely decodable with a decoding delay of one code symbol for integer k >= 3. Cheng et al. contributed some results on the redundancy of optimal ternary AIFV codes in [IEEE Trans. on Comm., vol. 71, no. 6, June 2023]. This paper shows that the worst-case redundancy of ternary AIFV codes is 1/2. We also show that the redundancy of k-nary AIFV codes is 1/(k-1) for discrete memoryless sources satisfying p_max -> 1, where p_max denotes the maximum probability of symbol occurrence in the source alphabet.
Keyword (in Japanese) (See Japanese page) 
(in English) source coding / AIFV codes / redundancy / / / / /  
Reference Info. IEICE Tech. Rep., vol. 124, no. 48, IT2024-3, pp. 13-17, May 2024.
Paper # IT2024-3 
Date of Issue 2024-05-23 (IT, EMM) 
ISSN Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF IT2024-3 EMM2024-3

Conference Information
Committee IT EMM  
Conference Date 2024-05-30 - 2024-05-31 
Place (in Japanese) (See Japanese page) 
Place (in English) Chiba University (Nishi-Chiba Campus) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Information Security, Information Theory, Information Hiding, etc. 
Paper Information
Registration To IT 
Conference Code 2024-05-IT-EMM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Maximum redundancy of ternary AIFV codes is 1/2 
Sub Title (in English)  
Keyword(1) source coding  
Keyword(2) AIFV codes  
Keyword(3) redundancy  
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1st Author's Name Mayu Mori  
1st Author's Affiliation University of Fukui (Univ. of Fukui)
2nd Author's Name Kengo Hashimoto  
2nd Author's Affiliation University of Fukui (Univ. of Fukui)
3rd Author's Name Ken-ichi Iwata  
3rd Author's Affiliation University of Fukui (Univ. of Fukui)
4th Author's Name Hirosuke Yamamoto  
4th Author's Affiliation The University of Tokyo (The Univ. of Tokyo)
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Speaker Author-1 
Date Time 2024-05-30 13:40:00 
Presentation Time 25 minutes 
Registration for IT 
Paper # IT2024-3, EMM2024-3 
Volume (vol) vol.124 
Number (no) no.48(IT), no.49(EMM) 
Page pp.13-17 
#Pages 5 
Date of Issue 2024-05-23 (IT, EMM) 

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