Paper Abstract and Keywords |
Presentation |
2011-12-16 09:30
A compact DFA representation using dual position automata Hiroaki Yamamoto, Shogo Nakamura (Shinshu Univ.) COMP2011-36 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
This paper introduces an automaton model called {\em a dual position automaton}
(a dual PA), and then gives a bit-parallel algorithm for generating
a dual PA from a regular expression (RE).
For any RE $r$ over an alphabet $\Sigma$,
our translation algorithm generates a dual PA consisting of $\tilde{m}(\tilde{m}+1)$
bits in $O(\tilde{m}\lceil \tilde{m}/w\rceil)$ time and space,
where $w$ is the length of a computer word, $\tilde{m}=\sum_{a\in\Sigma} m_a$
and $m_a$ is the number of occurrences of an alphabet symbol $a$ in $r$.
Furthermore, we give a method to construct a compact DFA representation
from a dual PA. This DFA representation requires only
$(\tilde{m}+1)\sum_{a\in\Sigma}2^{m_a}$ bits.
Finally, we show RE matching algorithms using such a DFA representation. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
dual position automaton / DFA / regular expression / pattern matching / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 111, no. 360, COMP2011-36, pp. 1-7, Dec. 2011. |
Paper # |
COMP2011-36 |
Date of Issue |
2011-12-09 (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) |
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COMP2011-36 |
Conference Information |
Committee |
COMP |
Conference Date |
2011-12-16 - 2011-12-16 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Nagoya Univ. |
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(See Japanese page) |
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Paper Information |
Registration To |
COMP |
Conference Code |
2011-12-COMP |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A compact DFA representation using dual position automata |
Sub Title (in English) |
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Keyword(1) |
dual position automaton |
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DFA |
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regular expression |
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pattern matching |
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1st Author's Name |
Hiroaki Yamamoto |
1st Author's Affiliation |
Shinshu University (Shinshu Univ.) |
2nd Author's Name |
Shogo Nakamura |
2nd Author's Affiliation |
Shinshu University (Shinshu Univ.) |
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Speaker |
Author-1 |
Date Time |
2011-12-16 09:30:00 |
Presentation Time |
30 minutes |
Registration for |
COMP |
Paper # |
COMP2011-36 |
Volume (vol) |
vol.111 |
Number (no) |
no.360 |
Page |
pp.1-7 |
#Pages |
7 |
Date of Issue |
2011-12-09 (COMP) |
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