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Paper Abstract and Keywords
Presentation 2015-06-13 15:10
Double-array Representation with String Labels
Shunsuke Kanda, Masao Fuketa, Kazuhiro Morita, Jun-ichi Aoe (Tokushima Univ.) COMP2015-15
Abstract (in Japanese) (See Japanese page) 
(in English) A trie is an ordered tree structure with a character on each edge. The trie provides an efficient management of a keyword set in natural language processing, information retrieval systems and so on. The double-array with a high-speed performance has been proposed to represent the trie efficiently. As its space usage depends on the number of trie nodes, the space usage decreases by reducing nodes. To reduce the number of trie nodes, a Minimal-Prefix (MP) trie and a Directed Acyclic Word Graph (DAWG) have been proposed, and the double-array can represent the data structures efficiently. On the other hand, the data structures include many nodes that can be reduced by giving a string label to each edge. However, the double-array with the string labels have not been proposed. This paper proposes a new double-array structure with the string labels by using multiple arrays depending on label sizes. Moreover, we show its effectiveness by experiments.
Keyword (in Japanese) (See Japanese page) 
(in English) Trie / DAWG / Double-array / String label / / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 84, COMP2015-15, pp. 141-148, June 2015.
Paper # COMP2015-15 
Date of Issue 2015-06-05 (COMP) 
ISSN Print edition: ISSN 0913-5685    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 COMP2015-15

Conference Information
Committee COMP IPSJ-AL  
Conference Date 2015-06-12 - 2015-06-13 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To COMP 
Conference Code 2015-06-COMP-AL 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Double-array Representation with String Labels 
Sub Title (in English)  
Keyword(1) Trie  
Keyword(2) DAWG  
Keyword(3) Double-array  
Keyword(4) String label  
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1st Author's Name Shunsuke Kanda  
1st Author's Affiliation Tokushima University (Tokushima Univ.)
2nd Author's Name Masao Fuketa  
2nd Author's Affiliation Tokushima University (Tokushima Univ.)
3rd Author's Name Kazuhiro Morita  
3rd Author's Affiliation Tokushima University (Tokushima Univ.)
4th Author's Name Jun-ichi Aoe  
4th Author's Affiliation Tokushima University (Tokushima Univ.)
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Speaker Author-1 
Date Time 2015-06-13 15:10:00 
Presentation Time 25 minutes 
Registration for COMP 
Paper # COMP2015-15 
Volume (vol) vol.115 
Number (no) no.84 
Page pp.141-148 
#Pages 8 
Date of Issue 2015-06-05 (COMP) 

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