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
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- CONFERENCE (INTERNATIONAL)
- Search Wandering Score: Predicting Timings of Online Shopping based on Wandering in User’s Web Search Queries
- Kota Tsubouchi, Wataru Sasaki (Keio University), Tadashi Okoshi (Keio University), Jin Nakazawa (Keio University)
- 2020 IEEE International Conference on Big Data
- December 13, 2020
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- CONFERENCE (INTERNATIONAL)
- DualSIN: Dual Sequential Interaction Network for Human Intentional Mobility Prediction
- Quanjun Chen (The University of Tokyo), Renhe Jiang (The University of Tokyo), Chuang Yang (The University of Tokyo), Zekun Cai (The University of Tokyo), Zipei Fan (The University of Tokyo), Kota Tsubouchi, Xuan Song (The University of Tokyo), Ryosuke Shibasaki (The University of Tokyo)
- 28th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
- November 23, 2020
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- CONFERENCE (INTERNATIONAL)
- Enabling Finer Grained Place Embeddings using Spatial Hierarchy from Human Mobility Trajectories
- Toru Shimizu, Takahiro Yabe (Purdue University), Kota Tsubouchi
- 28th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
- November 23, 2020
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- CONFERENCE (INTERNATIONAL)
- Intercity Simulation of Human Mobility at Rare Events via Reinforcement Learning
- Takahiro Yabe (Purdue University), Kota Tsubouchi, Yoshihide Sekimoto (The University of Tokyo)
- 28th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
- November 23, 2020
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- CONFERENCE (INTERNATIONAL)
- POI Atmosphere Categorization Using Web Search Session Behavior
- Kota Tsubouchi, Hayato Kobayashi, Toru Shimizu
- 28th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
- November 23, 2020
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- CONFERENCE (INTERNATIONAL)
- Supervised-CityProphet: Towards Accurate Anomalous Crowd Prediction
- Soto Anno (Tokyo Institute of Technology), Kota Tsubouchi, Masamichi Shimosaka (Tokyo Institute of Technology)
- 28th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
- November 23, 2020
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- JOURNAL (INTERNATIONAL)
- Surveillance of early stage COVID-19 clusters using search query logs and mobile device-based location information
- Shohei Hisada (NAIST), Taichi Murayama (NAIST), Kota Tsubouchi, Sumio Fujita, Shuntaro Yada (NAIST), Shoko Wakamiya (NAIST), Eiji Aramaki (NAIST)
- Scientific Reports
- October 29, 2020
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- JOURNAL (INTERNATIONAL)
- Non-Compulsory Measures Sufficiently Reduced Human Mobility in Tokyo during the COVID-19 Epidemic
- Takahiro Yabe (Purdue University), Kota Tsubouchi, Naoya Fujiwara (the University of Tokyo), Takayuki Wada (Tohoku University), Yoshihide Sekimoto (the University of Tokyo), Satish V. Ukkusuri (Purdue University)
- Scientific Reports
- October 26, 2020
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- WORKSHOP (DOMESTIC)
- Wi-Fi RTTを用いたデバイスフリー複数人屋内測位
- 須ヶ﨑 聖人 (東京工業大学), 坪内 孝太, 西尾 信彦 (立命館大学), 下坂 正倫 (東京工業大学)
- 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
- September 30, 2020
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- CONFERENCE (INTERNATIONAL)
- Unsupervised Translation via Hierarchical Anchoring: Functional Mapping of Places across Cities
- Takahiro Yabe (Purdue University), Kota Tsubouchi, Toru Shimizu, Yoshihide Sekimoto (the University of Tokyo), Satish V. Ukkusuri (Purdue University)
- 26TH ACM SIGKDD CONFERENCE ON KNOWLEDGE DISCOVERY AND DATA MINING
- August 26, 2020
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- CONFERENCE (INTERNATIONAL)
- Tackling Cannibalization Problems for Online Advertisement
- Yutaro Ueoka, Kota Tsubouchi, Nobuyuki Shimizu
- 28th Conference on User Modeling, Adaptation and Personalization
- August 02, 2020
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- JOURNAL (INTERNATIONAL)
- Development of people mass movement simulation framework based on reinforcement learning
- Yanbo Pang (The University of Tokyo), Takehiro Kashiyama (The University of Tokyo), Takahiro Yabe (Purdue University), Kota Tsubouchi, Yoshihide Sekimoto (The University of Tokyo)
- Transportation Research Part C
- August 01, 2020
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- CONFERENCE (INTERNATIONAL)
- AirPlanes: A DIY Modeling System Using Mobile VSLAM for Indoor Space
- Taiga Nishiyama (Ritsumeikan University), Daichi Yoshikawa (Ritsumeikan University), Nobuhiko Nishio (Ritsumeikan University), Kota Tsubouchi
- The 18th ACM International Conference on Mobile Systems, Applications, and Services
- June 19, 2020
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- JOURNAL (INTERNATIONAL)
- Contextual Sentiment Neural Network for Document Sentiment Analysis
- Tomoki Ito (The University of Tokyo), Kota Tsubouchi, Hiroki Sakaji (The University of Tokyo), Kiyoshi Izumi (The University of Tokyo), and Tatsuo Yamashita
- Data Science and Engineering
- June 12, 2020
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- WORKSHOP (DOMESTIC)
- GPS 位置履歴を用いた時間制約を考慮した 観光施設の滞在時間モデリング
- 岩本 睦大 (東工大), 坪内 孝太, 下坂 正倫（東工大）
- 情報処理学会第66回ユビキタスコンピューティングシステム研究会
- May 26, 2020
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- WORKSHOP (DOMESTIC)
- GPS位置履歴情報と鉄道の乗換検索履歴を用いた異常混雑事前予測
- 安納 爽響 (東工大), 坪内 孝太, 下坂 正倫 (東工大)
- 情報処理学会第66回ユビキタスコンピューティングシステム研究会
- May 26, 2020
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- CONFERENCE (INTERNATIONAL)
- SheetKey: Generating Touch Events by a Pattern Printed with Conductive Ink for User Authentication
- Shota Yamanaka, Kunihiro Kato (The University of Tokyo), Tung D. Ta (The University of Tokyo), Kota Tsubouchi, Fuminori Okuya (The University of Tokyo), Kenji Tsushio (The University of Tokyo), Yoshihiro Kawahara (The University of Tokyo)
- Graphics Interface 2020
- May 21, 2020
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- OTHERS (DOMESTIC)
- Non-Compulsory Measures Sufficiently Reduced Human Mobility in Japan during the COVID-19 Epidemic
- Takahiro Yabe (Purdue University), Kota Tsubouchi, Naoya Fujiwara (Tohoku University), Takayuki Wada (Osaka City University), Yoshihide Sekimoto (The University of Tokyo), and Satish V. Ukkusuri (Purdue University)
- arXiv.org
- May 20, 2020
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- CONFERENCE (INTERNATIONAL)
- SSNN: Sentiment Shift Neural Network
- Tomoki Ito (The University of Tokyo), Kota Tsubouchi, Hiroki Sakaji (The University of Tokyo), Kiyoshi Izumi (The University of Tokyo), and Tatsuo Yamashita
- SIAM2020 International Conference on Data Mining
- May 07, 2020
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- CONFERENCE (INTERNATIONAL)
- PredicTaps: Latency Reduction Technique for Single-taps Based on Recognition for Single-tap or Double-tap
- Kaori Ikematsu, Shota Yamanaka, Kota Tsubouchi
- Conference on Human Factors in Computing Systems
- April 25, 2020