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Paper Abstract and Keywords
Presentation 2010-10-15 10:05
Constant-Work-Space Algorithms for Geometric Problems(2)
Tetsuo Asano (JAIST), Wolfgang Mulzer (Princeton Univ.), Gunter Rote (Free Univ.), Yajun Wang (Microsoft) COMP2010-32
Abstract (in Japanese) (See Japanese page) 
(in English) We present space-efficient algorithms for geometric problems in a restricted computational model called ``constant work space'' or ``log-space'' computation. In this report we propose an efficient constant work space algorithm for finding a shortest path between two points in a simple $n$-gon. Although the shortest path problem in general graphs is NL-complete~\cite{tantau}, this constrained problem can be solved in quadratic time using only constant work space.
Keyword (in Japanese) (See Japanese page) 
(in English) constant-work-space algorithm / shortest path / simple polygon / simple path in a tree / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 232, COMP2010-32, pp. 9-15, Oct. 2010.
Paper # COMP2010-32 
Date of Issue 2010-10-08 (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 COMP2010-32

Conference Information
Committee COMP  
Conference Date 2010-10-15 - 2010-10-15 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To COMP 
Conference Code 2010-10-COMP 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Constant-Work-Space Algorithms for Geometric Problems(2) 
Sub Title (in English)  
Keyword(1) constant-work-space algorithm  
Keyword(2) shortest path  
Keyword(3) simple polygon  
Keyword(4) simple path in a tree  
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1st Author's Name Tetsuo Asano  
1st Author's Affiliation JAIST (JAIST)
2nd Author's Name Wolfgang Mulzer  
2nd Author's Affiliation Princeton University (Princeton Univ.)
3rd Author's Name Gunter Rote  
3rd Author's Affiliation Free University (Free Univ.)
4th Author's Name Yajun Wang  
4th Author's Affiliation Microsoft Research (Microsoft)
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Speaker Author-1 
Date Time 2010-10-15 10:05:00 
Presentation Time 35 minutes 
Registration for COMP 
Paper # COMP2010-32 
Volume (vol) vol.110 
Number (no) no.232 
Page pp.9-15 
#Pages 7 
Date of Issue 2010-10-08 (COMP) 

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