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Paper Abstract and Keywords
Presentation 2021-03-03 10:00
Weighted Multiple Context-free Grammars and their Properties
Yusuke Inoue, Hiroyuki Seki (Nagoya Univ.) SS2020-28
Abstract (in Japanese) (See Japanese page) 
(in English) Multiple context-free grammar (MCFG) is an extension of context-free grammar that generates tuples of strings. MCFG has been applied to syntax analysis of natural language and RNA structure prediction. This paper gives a definition of weighted multiple context-free grammar (WMCFG) by introducing weights to
MCFG. Then, we give polynomial-time algorithms for membership and emptiness problems, and also show the closure properties under operations such as sum, product, and so on. Furthermore, we define multiple algebraic power series, then we show that it is equivalent to formal power series defined by MCFG.
Keyword (in Japanese) (See Japanese page) 
(in English) weighted multiple context-free grammar / membership / emptiness / closure property / algebraic power series / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 407, SS2020-28, pp. 1-6, March 2021.
Paper # SS2020-28 
Date of Issue 2021-02-24 (SS) 
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)
Notes on Review This article is a technical report without peer review, and its polished version will be published elsewhere.
Download PDF SS2020-28

Conference Information
Committee SS  
Conference Date 2021-03-03 - 2021-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SS 
Conference Code 2021-03-SS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Weighted Multiple Context-free Grammars and their Properties 
Sub Title (in English)  
Keyword(1) weighted multiple context-free grammar  
Keyword(2) membership  
Keyword(3) emptiness  
Keyword(4) closure property  
Keyword(5) algebraic power series  
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1st Author's Name Yusuke Inoue  
1st Author's Affiliation Nagoya University (Nagoya Univ.)
2nd Author's Name Hiroyuki Seki  
2nd Author's Affiliation Nagoya University (Nagoya Univ.)
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Speaker Author-1 
Date Time 2021-03-03 10:00:00 
Presentation Time 25 minutes 
Registration for SS 
Paper # SS2020-28 
Volume (vol) vol.120 
Number (no) no.407 
Page pp.1-6 
#Pages 6 
Date of Issue 2021-02-24 (SS) 

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