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Paper Abstract and Keywords
Presentation 2026-07-23 14:50
A Structuring Method for Disaster Memorial Monument Data Toward Historical Disaster Risk Information Utilization
Takuya Nakata (Kobe Univ.), Nanako Inokawa (Tohoku Univ.) ICM2026-7 SC2026-13
Abstract (in Japanese) (See Japanese page) 
(in English) Natural disaster monuments contain free-text records of flood events, damage, countermeasures, and lessons.
LLM-based structuring may generate unsupported information or assign information to incorrect fields.
We compare evidence-aware generation, which outputs structured information with supporting text, against direct and two-stage generation.
The methods were evaluated on 639 records, with an additional manual assessment of 25 records.
Evidence-aware generation achieved the highest mean score and reduced unsupported outputs and field misassignments, but increased omissions.
Two-stage generation handled some compound casualty expressions but was less stable overall.
These results suggest that evidence-aware generation improves inspectability and reduces unsupported outputs, with a trade-off in coverage.
Keyword (in Japanese) (See Japanese page) 
(in English) Natural disaster monuments / Information extraction / Large language models / Evidence-aware generation / Data structuring / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 129, SC2026-13, pp. 21-28, July 2026.
Paper # SC2026-13 
Date of Issue 2026-07-16 (ICM, SC) 
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 ICM2026-7 SC2026-13

Conference Information
Committee SC ICM  
Conference Date 2026-07-23 - 2026-07-24 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To SC 
Conference Code 2026-07-SC-ICM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Structuring Method for Disaster Memorial Monument Data Toward Historical Disaster Risk Information Utilization 
Sub Title (in English)  
Keyword(1) Natural disaster monuments  
Keyword(2) Information extraction  
Keyword(3) Large language models  
Keyword(4) Evidence-aware generation  
Keyword(5) Data structuring  
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1st Author's Name Takuya Nakata  
1st Author's Affiliation Kobe University (Kobe Univ.)
2nd Author's Name Nanako Inokawa  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2026-07-23 14:50:00 
Presentation Time 25 minutes 
Registration for SC 
Paper # ICM2026-7, SC2026-13 
Volume (vol) vol.126 
Number (no) no.128(ICM), no.129(SC) 
Page pp.21-28 
#Pages 8 
Date of Issue 2026-07-16 (ICM, SC) 

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