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Paper Abstract and Keywords
Presentation 2026-03-05 14:00
A Dialogue System for CommonLayout Based on a Layout Model and Grounding Acts
Naoki Matsuura, Yasuhiro Minami (UEC), Ryuichiro Higashinaka (NTT) TL2025-45
Abstract (in Japanese) (See Japanese page) 
(in English) Building common ground is essential for mutual understanding in dialogue. We present a dialogue system for CommonLayout, in which two participants collaboratively arrange shapes through conversation. Our system incorporates a Transformer-based layout model trained on real car images, enabling structurally informed shape placement that large language models alone cannot achieve. Furthermore, we design a dialogue strategy based on grounding acts, acknowledgement, clarification, and follow-up, that strategically selects actions using the confidence derived from the model's probability distributions. Experiments show that the grounding-act-based strategy significantly reduces layout distance compared to always accepting the top candidate ($p < .001$), and that follow-up questions are more effective than clarification questions.
Keyword (in Japanese) (See Japanese page) 
(in English) Common Ground / Grounding Acts / Dialogue System / CommonLayout / Large Language Model / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 392, TL2025-45, pp. 18-23, March 2026.
Paper # TL2025-45 
Date of Issue 2026-02-26 (TL) 
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 TL2025-45

Conference Information
Committee TL  
Conference Date 2026-03-05 - 2026-03-06 
Place (in Japanese) (See Japanese page) 
Place (in English) National Tsing Hua University (Taiwan) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Theme 1: ELF, Conversation Analysis, Multimodal Interaction, Intercultural Communication, Theme 2: Assistive Language tools, Generative AI, Knowledge, Concepts, Vocabulary and its Structure, Theme 3: Linguistic Landscape, Language Contact, Interpretation and Translation, Intercultural Dialogue, Language and Learning ∙ Language Learning. 
Paper Information
Registration To TL 
Conference Code 2026-03-TL 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Dialogue System for CommonLayout Based on a Layout Model and Grounding Acts 
Sub Title (in English)  
Keyword(1) Common Ground  
Keyword(2) Grounding Acts  
Keyword(3) Dialogue System  
Keyword(4) CommonLayout  
Keyword(5) Large Language Model  
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1st Author's Name Naoki Matsuura  
1st Author's Affiliation The University of Electro-Communications (UEC)
2nd Author's Name Yasuhiro Minami  
2nd Author's Affiliation The University of Electro-Communications (UEC)
3rd Author's Name Ryuichiro Higashinaka  
3rd Author's Affiliation NTT,Inc. (NTT)
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Speaker Author-1 
Date Time 2026-03-05 14:00:00 
Presentation Time 30 minutes 
Registration for TL 
Paper # TL2025-45 
Volume (vol) vol.125 
Number (no) no.392 
Page pp.18-23 
#Pages 6 
Date of Issue 2026-02-26 (TL) 

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