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Paper Abstract and Keywords
Presentation 2007-03-16 10:00
Making On-Line Handwritten Mathematical Expression Database Using Stroke-Based Stochastic Context-Free Grammar
Ryo Yamamoto, Shinji Sako, Takuya Nishimoto, Shigeki Sagayama (Tokyo University)
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we built an on-line handwritten mathematical expression database for evaluation and training of mathematical expression recognition systems. We collected 1000 handwriting data of 200 mathematical expressions taken from scientific papers, and 20000 handwriting data of 245 mathematical symbols. We also explored a method to automatically estimate the alignment between input strokes and symbols. We could reduce labor in tagging alignment by hand using our previously proposed method for expression recognition under the grammatical constraint of the correct expression.
Keyword (in Japanese) (See Japanese page) 
(in English) Mathematical Expression Recognition / Database / Character Recognition / On-Line / Handwriting / Stochastic Model / Stochastic Context-Free Grammar /  
Reference Info. IEICE Tech. Rep., vol. 106, no. 606, PRMU2006-257, pp. 13-17, March 2007.
Paper # PRMU2006-257 
Date of Issue 2007-03-09 (PRMU) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Conference Information
Committee PRMU  
Conference Date 2007-03-15 - 2007-03-16 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To PRMU 
Conference Code 2007-03-PRMU 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Making On-Line Handwritten Mathematical Expression Database Using Stroke-Based Stochastic Context-Free Grammar 
Sub Title (in English)  
Keyword(1) Mathematical Expression Recognition  
Keyword(2) Database  
Keyword(3) Character Recognition  
Keyword(4) On-Line  
Keyword(5) Handwriting  
Keyword(6) Stochastic Model  
Keyword(7) Stochastic Context-Free Grammar  
1st Author's Name Ryo Yamamoto  
1st Author's Affiliation The University of Tokyo (Tokyo University)
2nd Author's Name Shinji Sako  
2nd Author's Affiliation The University of Tokyo (Tokyo University)
3rd Author's Name Takuya Nishimoto  
3rd Author's Affiliation The University of Tokyo (Tokyo University)
4th Author's Name Shigeki Sagayama  
4th Author's Affiliation The University of Tokyo (Tokyo University)
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Date Time 2007-03-16 10:00:00 
Presentation Time 30 
Registration for PRMU 
Paper # IEICE-PRMU2006-257 
Volume (vol) IEICE-106 
Number (no) no.606 
Page pp.13-17 
#Pages IEICE-5 
Date of Issue IEICE-PRMU-2007-03-09 

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