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Paper Abstract and Keywords
Presentation 2008-03-04 11:25
Abstraction of Timed Automata Based on Counterexample-Guided Abstraction Refinement Loop
Takeshi Nagaoka, Kozo Okano, Shinji Kusumoto (Osaka Univ.) SS2007-74
Abstract (in Japanese) (See Japanese page) 
(in English) We have proposed a method of model abstraction for timed automata.The proposed method is based on CEGAR (CounterExample-Guided Abstraction Refinement) loop which automatically refines an abstract model using counter examples. Our algorithm has some features such as refinements are performed indirectly through transformation of the original timed automaton.
This paper gives formal descriptions of the algorithm and the correctness proof of the algorithm.
Keyword (in Japanese) (See Japanese page) 
(in English) Model Checking / Timed Automaton / Model Abstraction / CEGAR / / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 505, SS2007-74, pp. 103-108, March 2008.
Paper # SS2007-74 
Date of Issue 2008-02-25 (SS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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Conference Information
Committee SS  
Conference Date 2008-03-03 - 2008-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Nagasaki Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) general 
Paper Information
Registration To SS 
Conference Code 2008-03-SS 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Abstraction of Timed Automata Based on Counterexample-Guided Abstraction Refinement Loop 
Sub Title (in English)  
Keyword(1) Model Checking  
Keyword(2) Timed Automaton  
Keyword(3) Model Abstraction  
Keyword(4) CEGAR  
1st Author's Name Takeshi Nagaoka  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Kozo Okano  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Shinji Kusumoto  
3rd Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-2 
Date Time 2008-03-04 11:25:00 
Presentation Time 25 minutes 
Registration for SS 
Paper # SS2007-74 
Volume (vol) vol.107 
Number (no) no.505 
Page pp.103-108 
Date of Issue 2008-02-25 (SS) 

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