| Presentation | 2007-04-26 Suffix Array Based Computation of Substring Equivalence Classes Kazuyuki NARISAWA, Shunsuke INENAGA, Hideo BANNAI, Masayuki TAKEDA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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 correspoding 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. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | equivalence class / suffix tree / suffix array |
| Paper # | COMP2007-9 |
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| Conference Information | |
| Committee | COMP |
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| Conference Date | 2007/4/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Theoretical Foundations of Computing (COMP) |
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| Language | JPN |
| 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 |
| 1st Author's Name | Kazuyuki NARISAWA |
| 1st Author's Affiliation | Department of Informatics, Graduate School of Information Science and Electrical Engineering, Kyushu University() |
| 2nd Author's Name | Shunsuke INENAGA |
| 2nd Author's Affiliation | Department of Computer Science and Communication Engineering, Kyushu University |
| 3rd Author's Name | Hideo BANNAI |
| 3rd Author's Affiliation | Department of Informatics, Faculty of Information Science and Electrical Engineering, Kyushu University |
| 4th Author's Name | Masayuki TAKEDA |
| 4th Author's Affiliation | Department of Informatics, Faculty of Information Science and Electrical Engineering, Kyushu University:SORST, Japan Science and Technology Agency(JST) |
| Date | 2007-04-26 |
| Paper # | COMP2007-9 |
| Volume (vol) | vol.107 |
| Number (no) | 24 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |