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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- OTHERS (DOMESTIC)
- 地域特性理解促進のための画像・検索クエリ・GISデータに基づくデジタルマップアプリケーション
- 久保田 祐輝 (東京工業大学), 安納 爽響 (東京工業大学), 谷口 智美 (TANIGUCHI TOMOMI DESIGN), 坂本 隆之 (株式会社 日建設計), 辻本 顕 (株式会社 日建設計), 安田 啓紀 (株式会社 日建設計), 宮崎 光世 (兵庫大学), 石川 貴明, 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
- April 18, 2022
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- WORKSHOP (DOMESTIC)
- 日経 VI 予測のためのソーシャルメディアの 感情とトピックを用いた文書分散表現獲得手法の提案
- 上田 健太郎 (奈良先端科学技術大学院大学), 諏訪 博彦 (奈良先端科学技術大学院大学), 小川 祐樹 (立命館大学), 梅原 英一 (新潟国際情報大学), 山下 達雄, 坪内 孝太, 安本 慶一 (奈良先端科学技術大学院大学)
- 人工知能学会「社会における AI」研究会 第43回研究会(「社会システムと知能合同研究会」)
- March 10, 2022
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- JOURNAL (INTERNATIONAL)
- Early warning of COVID-19 hotspots using human mobility and web search query data
- Takahiro Yabe (Purdue University), Kota Tsubouchi, Yoshihide Sekimoto (the university of tokyo), Satish V. Ukkusuri (Purdue University)
- Computers, Environment and Urban Systems
- December 24, 2021
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- OTHERS (INTERNATIONAL)
- GEO-BLEU: Similarity Measure for Geospatial Sequences
- Toru Shimizu, Kota Tsubouchi, Takahiro Yabe (Massachusetts Institute of Technology)
- arXiv.org
- December 17, 2021
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- CONFERENCE (INTERNATIONAL)
- Improving the Accuracy of Walking Context Recognition Using Step Rate
- Takuzo Ikuta (Ritsumeikan University), Kota Tsubouchi, Nobuhiko Nisho (Ritsumeikan University)
- The eleventh edition of the International Conference on Indoor Positioning and Indoor Navigation
- December 02, 2021
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- CONFERENCE (INTERNATIONAL)
- AI-BPO: Adaptive incremental BLE beacon placement optimization for crowd density 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)
- 29th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
- November 19, 2021
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- CONFERENCE (INTERNATIONAL)
- CityOutlook: Early Crowd Dynamics Forecast towards Irregular Events Detection with Synthetically Unbiased Regression
- Soto Anno (Tokyo Institute of Technology), Kota Tsubouchi, Masamichi Shimosaka (Tokyo Institute of Technology)
- 29th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
- November 19, 2021
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- OTHERS (INTERNATIONAL)
- Nation-wide Mood: Large-scale Estimation of People's Mood from Web Search Query and Mobile Sensor Data
- Wataru Sasaki (Keio University), Hiroshi Kawane, Satoko Miyahara, Kota Tsubouchi, Tadashi Okoshi (Keio University)
- arXiv.org
- November 11, 2021
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- OTHERS (INTERNATIONAL)
- Multiwave COVID-19 Prediction from Social Awareness using Web Search and Mobility Data
- Jiawei Xue (Purdue University), Takahiro Yabe (Purdue University), Kota Tsubouchi, Jianzhu Ma (Purdue University), Satish V. Ukkusuri (Purdue University)
- arXiv.org
- October 25, 2021
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- WORKSHOP (DOMESTIC)
- Capturing spatial distribution of people interests with web queries and location data: A large scale empirical study of metropolises in Japan
- Jinyuan Li (Tokyo Institute of Technology), Soto Anno (Tokyo Institute of Technology), Takayuki Sakamoto (Nikken Sekkei Ltd.), Hiraki Yasuda (Nikken Sekkei Ltd.), Akira Tsujimoto (Nikken Sekkei Ltd.), Kota Tsubouchi, Masamichi Shimosaka (Tokyo Institute of Technology)
- 情報処理学会 第71回ユビキタスコンピューティングシステム (UBI) 研究発表会
- September 03, 2021
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- CONFERENCE (INTERNATIONAL)
- Improving Land Use Classification using Human Mobility-based Hierarchical Place Embeddings
- Toru Shimizu, Takahiro Yabe (Purdue University), Kota Tsubouchi
- The 19th International Conference on Pervasive Computing and Communications
- June 11, 2021
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- OTHERS (DOMESTIC)
- Incremental BLE beacon placement optimization for crowd density monitoring applications
- YANG ZHEN (Tokyo Institute of Technology), Masato Sugasaki (Tokyo Institute of Technology), Yoshihiro Kawahara (the university of tokyo), Kota Tsubouchi, 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 04, 2021
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- JOURNAL (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)
- IEEE Transactions on Knowledge and Data Engineering
- May 20, 2021
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- CONFERENCE (INTERNATIONAL)
- Simultaneous multiple POI population pattern analysis system with HDP mixture regression
- Yuta Hayakawa (Tokyo Institute of Technology), Kota Tsubouchi, Masamichi Shimosaka (Tokyo Institute of Technology)
- the 25th Pacific-Asia Conference on Knowledge Discovery and Data Mining
- May 11, 2021
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- CONFERENCE (INTERNATIONAL)
- ColorfulFeedback: Enhancing Interest Prediction Performance through Multi-dimensional Labeled Feedback from Users
- Yuki Maeda (Keio University), Shuji Yamaguchi, Tatsuru Higurashi, Kota Tsubouchi
- 14th ACM International Web Search and Data Mining conference
- March 10, 2021
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- JOURNAL (INTERNATIONAL)
- Usefulness of Web Search Queries for Early Detection of Diseases in Infants
- Shuji Yamaguchi, Akinari Hinoki (Nagoya University Graduate School of Medicine), Kota Tsubouchi, Hizuru Amano (Nagoya University Graduate School of Medicine), Akira Tajima, Hiroo Uchida (Nagoya University Graduate School of Medicine)
- Nagoya Journal of Medical Science
- February 19, 2021
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- OTHERS (DOMESTIC)
- 地域の幾何的関係を考慮したマルチタスク回帰に基づく高性能な都市動態予報
- 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
- December 16, 2020
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- CONFERENCE (INTERNATIONAL)
- Location YardStick: Calculation of the Location Data Value Depending on the Users’ Context
- Kenta Kanamori, Kota Tsubouchi, Junichi Sato, Tatsuru Higurashi
- 2020 IEEE International Conference on Big Data
- December 13, 2020
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- CONFERENCE (INTERNATIONAL)
- ModelRecycling: Predicting user’s interest with connected predictive models
- Yoshiki Matsune (Ritsumeikan University), Kota Tsubouchi, Nobuhiko Nishio (Ritsumeikan University)
- 2020 IEEE International Conference on Big Data
- December 13, 2020
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- CONFERENCE (INTERNATIONAL)
- MOIRE: Mixed-Order Poisson Regression towards Fine-grained Urban Anomaly Detection at Nationwide Scale
- Masamichi Shimosaka (Tokyo Institute of Technology), Kota Tsubouchi, Yanru Chen (Tokyo Institute of Technology), Yoshiaki Ishihara (Tokyo Institute of Technology), Junichi Sato
- 2020 IEEE International Conference on Big Data
- December 13, 2020