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 (DOMESTIC)
- 非日常的イベントにおける位置情報と検索情報を用いたユーザの興味の抽出
- 日暮 立, 坪内 孝太, 齋藤 恵二郎 (日本放送協会), 森野 周 (日本放送協会), 麻生 重樹 (日本放送協会)
- 2023年度 人工知能学会全国大会(第37回)
- June 09, 2023
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- OTHERS (DOMESTIC)
- 景観画像と地理的特性を考慮した都市における雰囲気の定量化
- 久保田 祐輝 (東京工業大学), 安納 爽響 (東京工業大学), 坪内 孝太, 下坂 正倫 (東京工業大学)
- 第78回 情報処理学会UBI研究表会
- May 26, 2023
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- OTHERS (DOMESTIC)
- 混雑の生起・継続・終了を考慮した状態認識型RNNに基づく早期群衆混雑予報
- 安納 爽響 (東京工業大学), 坪内 孝太, 下坂 正倫 (東京工業大学)
- 第78回 情報処理学会UBI研究表会
- May 26, 2023
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- OTHERS (DOMESTIC)
- 異なる環境条件におけるGNSS信号強度と UVインデックスの関係
- 石岡 陸 (東京大学), 坪内 孝太, 西山 勇毅 (東京大学), 瀬崎 薫 (東京大学)
- 第78回 情報処理学会UBI研究表会
- May 26, 2023
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- CONFERENCE (INTERNATIONAL)
- Mobile Spaghetti Analysis in Grocery Store with Smartphone Sensing
- Kota Tsubouchi, Takuzo Ikuta (Ritsumeikan University), Nobuhiko Nishio (Ritsumeikan University)
- The 21st International Conference on Pervasive Computing and Communications
- March 16, 2023
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- CONFERENCE (INTERNATIONAL)
- Permission method for use of smartphone location data with emphasis on users’ understanding
- Kota Tsubouchi, Takashi Miyazaki
- The 21st International Conference on Pervasive Computing and Communications
- March 16, 2023
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- CONFERENCE (INTERNATIONAL)
- Device-free multi-person indoor localization using the change of ToF
- Atsushi Nomura (Tokyo Institute of Technology), Masato Sugasaki (Tokyo Institute of Technology), Kota Tsubouchi, Nobuhiko Nishio (Ritsumeikan University), Masamichi Shimosaka (Tokyo Institute of Technology)
- The 21st International Conference on Pervasive Computing and Communications
- March 15, 2023
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- WORKSHOP (INTERNATIONAL)
- Estimation of User Personality Traits on the Web Using Multi-Task Learning
- Satoki Hamanaka (Keio University), Wataru Sasaki (Keio University), Satoko Miyahara, Kota Tsubouchi, Jin Nakazawa (Keio University), Tadashi Okoshi (Keio University)
- The Twenty-fourth International Workshop on Mobile Computing Systems and Applications
- February 22, 2023
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- JOURNAL (INTERNATIONAL)
- Efficient adaptive beacon deployment optimization for indoor crowd monitoring applications
- Yang Zhen (Tokyo Institute of Technology), Masato Sugasaki (Tokyo Institute of Technology), Yoshihiro Kawahara (The University of Tokyo), Kota Tsubouchi, Matthew Ishige (The University of Tokyo), Masamichi Shimosaka (Tokyo Institute of Technology)
- The Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies
- February 01, 2023
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- OTHERS (DOMESTIC)
- スマートフォンのGNSSセンサーを用いたUVインデックス推定
- 石岡 陸 (東京大学), 坪内 孝太, 西山 勇毅 (東京大学), 瀬崎 薫 (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
- January 20, 2023
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- CONFERENCE (INTERNATIONAL)
- Convolutional Compressed Sensing for Smartphone Acceleration Data Compression
- Liqiang Xu (The University of Tokyo), Yuuki Nishiyama (The University of Tokyo), Masamichi Shimosaka (Tokyo Institute of Technology), Kota Tsubouchi, Kaoru Sezaki (The University of Tokyo)
- The 20th ACM Conference on Embedded Networked Sensor Systems
- November 06, 2022
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- CONFERENCE (INTERNATIONAL)
- Estimation of Precise Heading by Segmenting the Motion of Individual Steps and LSTM
- Yuichi Ikeuchi (Ritsumeikan University), Kota Tsubouchi, Nobuhiko Nishio (Ritsumeikan University)
- The 20th ACM Conference on Embedded Networked Sensor Systems
- November 06, 2022
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- CONFERENCE (INTERNATIONAL)
- Indoor Localization with Passerby Data in Parasitic Approach
- Hidehito Gomi, Kota Tsubouchi, Teruhiko Teraoka
- The 20th ACM Conference on Embedded Networked Sensor Systems
- November 06, 2022
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- CONFERENCE (INTERNATIONAL)
- UV index estimation leveraging GNSS sensors on smartphones
- Riku Ishioka (The University of Tokyo), Kota Tsubouchi, Yuuki Nishiyama (The University of Tokyo), Kaoru Sezaki (The University of Tokyo)
- The 20th ACM Conference on Embedded Networked Sensor Systems
- November 06, 2022
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- CONFERENCE (INTERNATIONAL)
- GEO-BLEU: Similarity Measure for Geospatial Sequences
- Toru Shimizu, Kota Tsubouchi, Takahiro Yabe (Purdue University)
- 30th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
- November 04, 2022
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- CONFERENCE (INTERNATIONAL)
- Estimation of Precise Step Lengths by Segmenting the Motion of Individual Steps
- Yuichi Ikeuchi (Ritsumeikan University), Daichi Yoshikawa (Ritsumeikan University), Kota Tsubouchi, Nobuhiko Nishio (Ritsumeikan University)
- 2022 International Conference on Indoor Positioning and Indoor Navigation
- September 07, 2022
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- CONFERENCE (INTERNATIONAL)
- CERAM: Coverage Expansion for Recommendations by Associating Discarded Models
- Yoshiki Matsune (Ritsumeikan University), Kota Tsubouchi, Nobuhiko Nishio (Ritsumeikan University)
- 28th ACM SIGKDD Conference on Knowledge Discovery and Data Mining
- August 22, 2022
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- CONFERENCE (INTERNATIONAL)
- Multiwave COVID-19 Prediction from Social Awareness usingWeb Search and Mobility Data
- Jiawei Xue (Purdue University), Takahiro Yabe (Massachusetts Institute of Technology), Kota Tsubouchi, Jianzhu Ma (Purdue University), Satish V. Ukkusuri (Purdue University)
- 28th ACM SIGKDD Conference on Knowledge Discovery and Data Mining
- August 22, 2022
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- CONFERENCE (DOMESTIC)
- 情報推薦における透明性がユーザに与える影響
- 日暮 立, 山口 修司, 坪内 孝太, 友成 愛, 大島 みゆき
- 2022年度 人工知能学会全国大会(第36回)
- June 17, 2022
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- CONFERENCE (INTERNATIONAL)
- DeepCrowd: A Deep Model for Large-Scale Citywide Crowd Density and Flow Prediction
- Renhe Jiang (the University of Tokyo), Zekun Cai (the University of Tokyo), Zhaonan Wang (the University of Tokyo), Chuang Yang (the University of Tokyo), Zipei Fan (the University of Tokyo), Quanjun Chen (the University of Tokyo), Kota Tsubouchi, Xuan Song (the University of Tokyo), Ryosuke Shibasaki (the University of Tokyo)
- The 38th IEEE International Conference on Data Engineering
- May 11, 2022