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| Presentation | 2007-04-26 16:25 Suffix Array Based Computation of Substring Equivalence Classes Kazuyuki Narisawa, Shunsuke Inenaga, Hideo Bannai, Masayuki Takeda (Kyushu Univ.)  COMP2007-9 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper considers enumerating substring equivalence classes introduced by Blumer et al. They used the equivalence classes to define an index structure called compact directed acyclic word graphs (CDAWGs). In text analysis, considering these equivalence classes is useful since they group together redundant substring with essentially identical occurrences. In this paper, we present how to enumerate those equivalence classes using suffix arrays. Our algorithm uses rank and lcp arrays for traversing the corresponding suffix trees, but does not need any other additional data structure. The algorithm runs in linear time in the length of the input string. We show experimental results comparing the running times and space consumptions of our algorithm, suffix tree and CDAWG based approaches. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | equivalence class / suffix tree / suffix array / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 24, COMP2007-9, pp. 63-70, April 2007. | |
| Paper # | COMP2007-9 | |
| Date of Issue | 2007-04-19 (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 | COMP2007-9 |
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| Conference Information | |
| Committee | COMP |
| Conference Date | 2007-04-26 - 2007-04-26 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Katsura Campus, Kyoto University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | COMP |
| Conference Code | 2007-04-COMP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Suffix Array Based Computation of Substring Equivalence Classes |
| Sub Title (in English) | |
| Keyword(1) | equivalence class |
| Keyword(2) | suffix tree |
| Keyword(3) | suffix array |
| Keyword(4) | |
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| Keyword(8) | |
| 1st Author's Name | Kazuyuki Narisawa |
| 1st Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 2nd Author's Name | Shunsuke Inenaga |
| 2nd Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 3rd Author's Name | Hideo Bannai |
| 3rd Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 4th Author's Name | Masayuki Takeda |
| 4th Author's Affiliation | Kyushu University (Kyushu Univ.) |
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| Speaker | Author-1 |
| Date Time | 2007-04-26 16:25:00 |
| Presentation Time | 35 minutes |
| Registration for | COMP |
| Paper # | COMP2007-9 |
| Volume (vol) | vol.107 |
| Number (no) | no.24 |
| Page | pp.63-70 |
| #Pages | 8 |
| Date of Issue | 2007-04-19 (COMP) |
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