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).
Publications
-
- 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
-
- OTHERS (DOMESTIC)
- LLMによるシーン中の物体の形容記述を用いた景観画像の印象予測
- 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)
- 情報処理学会ユビキタスコンピューティングシステム研究会
- November 11, 2024
-
- CONFERENCE (INTERNATIONAL)
- DisasterNeedFinder: Understanding the Information Needs in the Noto Earthquake
- Kota Tsubouchi, Shuji Yamaguchi, Keijirou Saitou (Japan Broadcasting Corporation), Akihisa Soemori (NHK Global Media Servises), Masato Morita (NHK Global Media Servises), Shigeki Asou (Japan Broadcasting Corporation)
- The 32nd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
- October 29, 2024
-
- CONFERENCE (INTERNATIONAL)
- Deep Learning-Based Compressed Sensing for Mobile Device-Derived Sensor Data
- Liqiang Xu (The University of Tokyo), Yuuki Nishiyama (The University of Tokyo), Kota Tsubouchi, Kaoru Sezaki (The University of Tokyo)
- The 33rd ACM International Conference on Information and Knowledge Management
- October 24, 2024
-
- OTHERS (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)
- arXiv.org
- October 23, 2024
-
- CONFERENCE (INTERNATIONAL)
- Investigating Acceptable Voice-based Notification Timings through Earable Devices: A Preliminary Field Study
- Manaka Ito (The University of Tokyo), Kota Tsubouchi, Nobuhiko Nishio (Ritsumeikan University), Masamichi Shimosaka (Tokyo Institute of Technology), Akihito Taya (The University of Tokyo), Kaoru Sezaki (The University of Tokyo), Yuuki Nishiyama (The University of Tokyo)
- The 2024 ACM International Joint Conference on Pervasive and Ubiquitous Computing
- October 18, 2024
-
- CONFERENCE (INTERNATIONAL)
- Improving Coverage and Accuracy in Visible Light Positioning through Ceiling Reflection Modeling
- Shota Shimada, Hiroaki Murakami (The University of Tokyo), Ryo Tabata (Hokkaido University), Kota Tsubouchi, Takuya Sasatani (The University of Tokyo), Yoshihiro Kawahara (The University of Tokyo), Masanori Sugimoto (Hokkaido University)
- The 14th International Conference on Indoor Positioning and Indoor Navigation
- October 15, 2024
-
- OTHERS (INTERNATIONAL)
- DisasterNeedFinder: Understanding the Information Needs in the 2024 Noto Earthquake (Comprehensive Explanation)
- Kota Tsubouchi, Shuji Yamaguchi, Keijirou Saitou (Japan Broadcasting Corporation), Akihisa Soemori (NHK Global Media Servises), Masato Morita (NHK Global Media Servises), Shigeki Asou (Japan Broadcasting Corporation)
- arXiv.org
- September 11, 2024
-
- JOURNAL (INTERNATIONAL)
- Enhancing human mobility research with open and standardized datasets
- Takahiro Yabe (New York University), Massimiliano Luca (Fondazione Bruno Kessler), Kota Tsubouchi, Bruno Lepri (Fondazione Bruno Kessler), Marta C. Gonzalez (University of California), Esteban Moro (Northeastern University)
- Nature Computational Science
- July 03, 2024
-
- JOURNAL (INTERNATIONAL)
- Forecasting Lifespan of Crowded Events With Acoustic Synthesis-Inspired Segmental Long Short-Term Memory
- Soto Anno (Tokyo Institute of Technology), Kota Tsubouchi, Masamichi Shimosaka (Tokyo Institute of Technology)
- IEEE Access
- June 25, 2024
-
- CONFERENCE (INTERNATIONAL)
- Towards Estimating UV Index with a Smartphone Utilizing GNSS Signals as a Point Cloud
- Subaru Atsumi (The University of Tokyo), Riku Ishioka (The University of Tokyo), Kota Tsubouchi, Yuuki Nishiyama (The University of Tokyo), Kaoru Sezaki (The University of Tokyo)
- The 22nd ACM International Conference on Mobile Systems, Applications, and Services
- June 19, 2024
-
- WORKSHOP (DOMESTIC)
- Exploring Passive Activity Recognition using Multi-shot UWB CIRs
- Han Lin (Tokyo Institute of Technology), Atsushi Nomura (Tokyo Institute of Technology), Kota Tsubouchi, Nobuhiko Nishio (Ritsumeikan University), Masamichi Shimosaka (Tokyo Institute of Technology)
- 情報処理学会ユビキタスコンピューティングシステム研究会
- June 05, 2024
-
- WORKSHOP (DOMESTIC)
- イベント告知情報と大規模言語モデルに基づくイベント会場周辺の早期群衆混雑予報
- 安納 爽響 (東京工業大学), 坪内 孝太, 下坂 正倫 (東京工業大学)
- 情報処理学会ユビキタスコンピューティングシステム研究会
- June 05, 2024
-
- WORKSHOP (DOMESTIC)
- 常時装着型イヤラブルデバイス利用環境における音声通知タイミング最適化に向けた基礎検討
- 伊藤 愛香 (東京大学), 坪内 孝太, 西尾 信彦 (立命館大学), 下坂 正倫 (東京工業大学), 田谷 昭仁 (東京大学), 瀬崎 薫 (東京大学), 西山 勇毅 (東京大学)
- 情報処理学会ユビキタスコンピューティングシステム研究会
- June 05, 2024
-
- JOURNAL (INTERNATIONAL)
- YJMob100K: City-scale and longitudinal dataset of anonymized human mobility trajectories
- Takahiro Yabe (New York University), Kota Tsubouchi, Toru Shimizu, Yoshihide Sekimoto (The University of Tokyo), Kaoru Sezaki (The University of Tokyo), Esteban Moro (Massachusetts Institute of Technology), Alex Pentland (Massachusetts Institute of Technology)
- Scientific Data
- April 23, 2024