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)
- 潜在的な旅行者へ宿泊施設提案
- 丸山 三喜也,高濱 康太郎, 坪内 孝太, 寺岡 照彦
- 2019年度 人工知能学会全国大会 (第33回)
- June 04, 2019
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- CONFERENCE (INTERNATIONAL)
- Word-level Sentiment Visualizer for Financial Documents
- Tomoki Ito (UTokyo), Kota Tsubouchi, Hiroki Sakaji (UTokyo), Tatsuo Yamashita and Kiyoshi Izumi (UTokyo)
- 2019 IEEE Conference on Computational Intelligence for Financial Engineering and Economics
- March 04, 2019
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- JOURNAL (INTERNATIONAL)
- Cross-comparative analysis of evacuation behavior after earthquakes using mobile phone data
- Takahiro Yabe (UTokyo), Yoshihide Sekimoto (UTokyo), Kota Tsubouchi, Satoshi Ikemoto (Zenrin DataCom Corporation)
- PLOS ONE
- February 20, 2019
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- CONFERENCE (INTERNATIONAL)
- Spatiality preservable factored Poisson regression for large-scale fine-grained GPS-based population analysis
- Masamichi Shimosaka(Tokyo Tech), Yuta Hayakawa(Tokyo Tech), and Kota Tsubouchi
- The Thirty-Third AAAI Conference on Artificial Intelligence
- January 28, 2019
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- CONFERENCE (INTERNATIONAL)
- Fusion of Terrain Information and Mobile Phone Location Data for Flood Area Detection in Rural Areas
- Takahiro Yabe (University of Tokyo), Kota Tsubouchi and Yoshihide Sekimoto(University of Tokyo)
- 2018 IEEE International Conference on BIG DATA
- December 10, 2018
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- JOURNAL (INTERNATIONAL)
- GINN: Gradient Interpretable Neural Networks for Visualizing Financial Texts
- Tomoki Ito (UTokyo), Hiroki Sakaji (UTokyo), Kiyoshi Izumi (UTokyo), Kota Tsubouchi, Tatsuo Yamashita
- International Journal of Data Science and Analytics 2018
- December 04, 2018
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- WORKSHOP (DOMESTIC)
- 携帯端末位置履歴を用いた階層ディリクレ混合回帰モデルに基づく活動人口予測
- 下坂 正倫(東工大), 早川 裕太(東工大), 坪内 孝太
- 情報処理学会 第60回ユビキタスコンピューティングシステム研究会
- December 04, 2018
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- CONFERENCE (INTERNATIONAL)
- Predictive Population Behavior Analysis from Multiple Contexts with Multilinear Poisson Regression
- Masamichi Shimosaka (Tokyo Tech), Takeshi Tsukiji (UTokyo), Hideyuki Wada(UTokyo), Kota Tsubouchi
- The ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems 2018
- November 06, 2018
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- CONFERENCE (INTERNATIONAL)
- Replicating Urban Dynamics by Generating Human-like Agents from Smartphone GPS Data
- Yanbo Pang (UTokyo), Kota Tsubouchi, Takahiro Yabe (UTokyo), Yoshihide Sekimoto (UTokyo)
- The ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems 2018
- November 06, 2018
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- WORKSHOP (DOMESTIC)
- Copernican-Touch: タッチサーフェスを指へ向けて接触させる動作を用いたタッチ入力拡張手法
- 池松 香(お茶の水女子大学, 日本学術振興会), 山中 祥太, 坪内 孝太, 椎尾 一郎(お茶の水女子大学)
- 第26回インタラクティブシステムとソフトウェアに関するワークショップ
- October 26, 2018
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- CONFERENCE (INTERNATIONAL)
- Early Destination Prediction with Spatio-temporal User-Behavior Patterns
- Ryo Imai(Tokyo Tech), Kota Tsubouchi, Tetsuya Konishi(UTokyo), Masamichi Shimosaka(Tokyo Tech)
- The 2018 ACM International Joint Conference on Pervasive and Ubiquitous Computing
- October 11, 2018
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- CONFERENCE (INTERNATIONAL)
- Symbiotic Construction of Individual’s Rich Location Dataset
- Teruhiko Teraoka, Kota Tsubouchi, Hidehito Gomi
- The 2018 ACM International Joint Conference on Pervasive and Ubiquitous Computing Posters
- October 08, 2018
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- JOURNAL (INTERNATIONAL)
- Real-world large-scale study on adaptive notification scheduling on smartphones
- Tadashi Okoshi(Keio University), Kota Tsubouchi, Hideyuki Tokuda(Keio University)
- Pervasive and Mobile Computing Volume 50, October 2018
- October 01, 2018
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- CONFERENCE (INTERNATIONAL)
- Continuous Authentication System Using Online Activities
- Hidehito Gomi, Shuji Yamaguchi, Kota Tsubouchi, and Naomi Sasaya
- The 17th IEEE International Conference On Trust, Security And Privacy In Computing And Communications
- August 01, 2018
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- CONFERENCE (DOMESTIC)
- 乗換案内ログとSNS の融合による未来に発生する混雑原因の特定
- 山下 達雄,坪内 孝太, 丸山 三喜也, 山浦 優樹, 岡田 宏一朗
- 2018年度 人工知能学会全国大会(第32回)
- June 08, 2018
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- CONFERENCE (INTERNATIONAL)
- Text-visualizing Neural Network Model: Understanding Online Financial Textual Data
- Tomoki Ito(UTokyo), Hiroki Sakaji(UTokyo), Kota Tsubouchi, Kiyoshi Izum(UTokyo), Tatsuo Yamashita
- The 22nd Pacific-Asia Conference on Knowledge Discovery and Data
- June 04, 2018
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- CONFERENCE (DOMESTIC)
- 検索クエリによる小児外科疾患特有の機械学習モデル改善の試み
- 山口 修司, 内田 広夫(名古屋大学), 檜 顕成(名古屋大学), 坪内 孝太, 田島 玲
- 第55回日本小児外科学会学術集会
- May 30, 2018
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- CONFERENCE (DOMESTIC)
- 大規模ユーザの時空間滞在・経路パターンに基づく早期目的地予測
- 今井 遼(東工大), 坪内 孝太, 小西 達也(東大), 下坂 正倫(東工大)
- 情報処理学会UBI研究会
- May 18, 2018
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- CONFERENCE (INTERNATIONAL)
- Next place prediction in unfamiliar places considering contextual factors
- Takashi Nicholas Maeda(the University of Tokyo), Kota Tsubouchi and Fujio Toriumi (the University of Tokyo)
- The 25th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
- November 07, 2017
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- CONFERENCE (INTERNATIONAL)
- Colorful PDR: Colorizing PDR with Shopping Context in Walking
- Kohei Kanagu (Ritsumeikan University), Kota Tsubouchi, and Nobuhiko Nishio (Ritsumeikan University)
- Tenth International conference on Indoor Positioning and Indoor Navigation
- September 21, 2017