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| Presentation | 2022-03-11 10:15 Context free grammar with tree structure analysis for online handwritten mathematical expression recognition Naruki Kitashima, Cuong Tuan Nguyen, Ikuko Shimizu, Masaki Nakagawa (TUAT)  PRMU2021-76 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In mathematics exams, descriptive questions are effective for measuring the comprehension of examinees, but marking handwritten answers are costly and time-consuming. Therefore, it is anticipated to automate marking them. Their recognition and clustering by machine learning must be established. In this paper, we propose tree structure analysis of a given mathematical expression using Context-Free Grammar based on online mathematical expression recognition by BLSTM and CTC. In an evaluation experiment, it was confirmed that the recognition rate was improved by 5.47 points compared with the conventional method using the tree structure of a mathematical expression. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Machine Learning / Mathematical Expression Recognition / BLSTM / SRT / Context-Free Grammar / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 427, PRMU2021-76, pp. 103-108, March 2022. | |
| Paper # | PRMU2021-76 | |
| Date of Issue | 2022-03-03 (PRMU) | |
| 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) | |
| Download PDF | PRMU2021-76 |
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| Conference Information | |
| Committee | PRMU IPSJ-CVIM |
| Conference Date | 2022-03-10 - 2022-03-11 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Differentiable rendering |
| Paper Information | |
| Registration To | PRMU |
| Conference Code | 2022-03-PRMU-CVIM |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Context free grammar with tree structure analysis for online handwritten mathematical expression recognition |
| Sub Title (in English) | |
| Keyword(1) | Machine Learning |
| Keyword(2) | Mathematical Expression Recognition |
| Keyword(3) | BLSTM |
| Keyword(4) | SRT |
| Keyword(5) | Context-Free Grammar |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Naruki Kitashima |
| 1st Author's Affiliation | Tokyo University of Agriculture and Technology (TUAT) |
| 2nd Author's Name | Cuong Tuan Nguyen |
| 2nd Author's Affiliation | Tokyo University of Agriculture and Technology (TUAT) |
| 3rd Author's Name | Ikuko Shimizu |
| 3rd Author's Affiliation | Tokyo University of Agriculture and Technology (TUAT) |
| 4th Author's Name | Masaki Nakagawa |
| 4th Author's Affiliation | Tokyo University of Agriculture and Technology (TUAT) |
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| Speaker | Author-1 |
| Date Time | 2022-03-11 10:15:00 |
| Presentation Time | 15 minutes |
| Registration for | PRMU |
| Paper # | PRMU2021-76 |
| Volume (vol) | vol.121 |
| Number (no) | no.427 |
| Page | pp.103-108 |
| #Pages | 6 |
| Date of Issue | 2022-03-03 (PRMU) |
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