People

Kota Tsubouchi Senior Chief Researcher, LY Research
Graduated from the Faculty of Engineering at the University of Tokyo in 2005 and completed a doctorate at the Graduate School of Frontier Sciences at the University of Tokyo in 2010. In the same year, he became a project researcher at the University of Tokyo. From 2012, he has been a senior researcher at Yahoo! JAPAN Research Labs. He is engaged in research and development of data analysis and machine learning focusing on human activity logs (location data, search logs, shopping history, sensor data, etc.). PhD (Environmental Studies).
Awards
-
2024.10.9UbiComp / ISWC 2024 Best Poster Award
-
2024.4.17Ministry of Education, Culture, Sports, Science and Technology The 2024 Commendation for Science and Technology (Development Category)
-
2024.3.18IPSJ SIGUBI 81th workshop The Best Paper Award
-
2023.11.30The Promotion Foundation for Electrical Science and Engineering The 2023 Electrical Science and Engineering Promotion Award
-
2023.11.21IPSJ SIGUBI 80th workshop The Best Paper Award
-
2023.6.10IPSJ SIGUBI 78th workshop The Best Paper Award
-
2023.3.23Information Processing Society of Japan The 2022 IPSJ Industrial Achievement Award
-
2022.12.15IPSJ-SIGUBI 76th workshop The 2021 Distinguished Achievement and Contributions Award
-
2020.6.19The 18th ACM International Conference on Mobile Systems, Applications, and Services Best Poster Award
-
2020.3.27The 18th International Conference on Pervasive Computing and Communications Best Industry Paper Award (Honorable Mention)
Publications
-
- WORKSHOP (DOMESTIC)
- 夜間景観画像の雰囲気評価定量予測
- 早川 季寿 (東京科学大学), 井手 海翔 (東京科学大学), 安納 爽響 (東京科学大学), 坪内 孝太, 下坂 正倫 (東京科学大学)
- 第86回UBI(ユビキタスコンピューティングシステム)研究会
- May 15, 2025
-
- CONFERENCE (INTERNATIONAL)
- Indoor Trajectory Estimation with Passerby Data without GPS nor WiFi Signals
- Hidehito Gomi, Kota Tsubouchi, Teruhiko Teraoka
- The 23rd International Conference on Pervasive Computing and Communications
- March 17, 2025
-
- CONFERENCE (DOMESTIC)
- レビュー情報を用いた LLM による観光地比較表生成
- 辻本 陵 (奈良先端科学技術大学院大学), 坪内 孝太, 山下 達雄, 松田 裕貴 (岡山大学), 諏訪 博彦 (奈良先端科学技術大学院大学), 大内 啓樹 (奈良先端科学技術大学院大学)
- 言語処理学会第31回年次大会
- March 11, 2025
-
- CONFERENCE (INTERNATIONAL)
- State and Transition Recognition of Ventilation-induced Barometric Disturbance during Indoor Altitude Estimation
- Yuki Hirayama (Ritsumeikan University), Takuzo Ikuta (Ritsumeikan University), Kota Tsubouchi, Nobuhiko Nishio (Ritsumeikan University)
- The 14th International Conference on Indoor Positioning and Indoor Navigation
- February 20, 2025
-
- JOURNAL (INTERNATIONAL)
- Capturing Information Needs in Disaster Situations by using Temporal and Spatial Offset Learning (TSOL)
- Kota Tsubouchi, Shuji Yamaguchi
- Progress in Disaster Science
- December 19, 2024
-
- CONFERENCE (INTERNATIONAL)
- Revealing Universities’ Atmosphere from Visitor Interests Using Search Queries and GPS Logs
- Kaoru Miyanaga (Institute of Science Tokyo), Soto Anno (Institute of Science Tokyo), Kota Tsubouchi, Masamichi Shimosaka (Institute of Science Tokyo)
- 2024 IEEE International Conference on Big Data
- December 15, 2024
-
- CONFERENCE (INTERNATIONAL)
- Are Crowded Events Forecastable from Promotional Announcements with Large Language Models?
- Soto Anno (Tokyo Institute of Technology), Dario Tenore (Swiss Federal Institute of Technology in Zurich), Kota Tsubouchi, Masamichi Shimosaka (Tokyo Institute of Technology)
- The 32nd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
- November 25, 2024
-
- CONFERENCE (INTERNATIONAL)
- Congestion Forecast for Trains with Railroad-Graph-based Semi-Supervised Learning using Sparse Passenger Reports
- Soto Anno (Tokyo Institute of Technology), Kota Tsubouchi, Masamichi Shimosaka (Tokyo Institute of Technology)
- The 32nd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
- November 25, 2024
-
- JOURNAL (INTERNATIONAL)
- Predicting Individual Irregular Mobility via Web Search-Driven Bipartite Graph Neural Networks
- Jiawei Xue (Purdue University), Takahiro Yabe (Massachusetts Institute of Technology), Kota Tsubouchi, Jianzhu Ma (Tsinghua University), Satish V. Ukkusuri (Purdue University)
- IEEE Transactions on Knowledge and Data Engineering
- November 21, 2024
-
- JOURNAL (INTERNATIONAL)
- Elucidating ever-changing information needs for the 2024 Noto Peninsula Earthquake using web search queries
- Akira Kodaka (Keio University, Chulalongkorn University), Akihiko Nishino (Keio University), Takashi Kanno (Keio University), Kaya Onda (Keio University), Kota Tsubouchi, Shingo Suzuki (National Research Institute for Earth Science and Disaster Resilience), Shuji Yamaguchi, Naohiko Kohtake (Keio University)
- Progress in Disaster Science
- November 18, 2024