| Paper Abstract and Keywords |
| Presentation |
2023-03-25 14:05
Optimizing Hash Functions of Rabin-Karp Method for Multi-Pattern Matching with Multiple Pattern Length Soa Suzuki, Hayato Yamaki, Shinobu Miwa, Hiroki Honda (UEC) CPSY2022-54 DC2022-113 |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
In recent years, demand for multi-pattern matching, in which a large number of patterns are matched against input data, has increased, and improving processing speed has become an important issue.
The Rabin-Karp method is a fast algorithm that can match multiple patterns at once as long as they have the same pattern length.
In this report, we propose a new hash function that computes hash values for all patterns from a sequence of bytes of basic data length $n$ and a matching method using the hash function.
This method makes it possible to match all patterns at once from the hash value of $n$ bytes of input data.
Evaluation of the application of multi-pattern matching to English word search and intrusion detection systems shows that the proposed method improves the matching speed by a factor of 12.5 to 50 times compared to the conventional method. The proposed method can improve the matching speed by 12.5 to 50 times. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Pattern matching / Rabin-Karp method / hash function / / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 122, no. 451, CPSY2022-54, pp. 118-123, March 2023. |
| Paper # |
CPSY2022-54 |
| Date of Issue |
2023-03-16 (CPSY, DC) |
| 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 |
CPSY2022-54 DC2022-113 |
| Conference Information |
| Committee |
DC CPSY IPSJ-SLDM IPSJ-EMB IPSJ-ARC |
| Conference Date |
2023-03-23 - 2023-03-25 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Amagi Town Disaster Prevention Center (Tokunoshima) |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
CPSY |
| Conference Code |
2023-03-DC-CPSY-SLDM-EMB-ARC |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Optimizing Hash Functions of Rabin-Karp Method for Multi-Pattern Matching with Multiple Pattern Length |
| Sub Title (in English) |
|
| Keyword(1) |
Pattern matching |
| Keyword(2) |
Rabin-Karp method |
| Keyword(3) |
hash function |
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| 1st Author's Name |
Soa Suzuki |
| 1st Author's Affiliation |
The University of Electro-Communications (UEC) |
| 2nd Author's Name |
Hayato Yamaki |
| 2nd Author's Affiliation |
The University of Electro-Communications (UEC) |
| 3rd Author's Name |
Shinobu Miwa |
| 3rd Author's Affiliation |
The University of Electro-Communications (UEC) |
| 4th Author's Name |
Hiroki Honda |
| 4th Author's Affiliation |
The University of Electro-Communications (UEC) |
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| Speaker |
Author-1 |
| Date Time |
2023-03-25 14:05:00 |
| Presentation Time |
25 minutes |
| Registration for |
CPSY |
| Paper # |
CPSY2022-54, DC2022-113 |
| Volume (vol) |
vol.122 |
| Number (no) |
no.451(CPSY), no.452(DC) |
| Page |
pp.118-123 |
| #Pages |
6 |
| Date of Issue |
2023-03-16 (CPSY, DC) |