People
坪内 孝太 Kota Tsubouchi LINEヤフー研究所 上席研究員
2005年東京大学工学部卒業.2010年東京大学大学院新領域創成科学研究科博士課程修了.同年東京大学特任研究員.2012年よりYahoo! JAPAN研究所上席研究員.Yahoo! JAPAN研究所では人の行動ログ(位置情報,検索ログ,買い物履歴,センサーデータなど)に着目したデータ解析,機械学習の研究開発に従事.IEEE,ACM,情報処理学会,人工知能学会各会員.博士(環境学).
Publications
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- カンファレンス (国際)
- 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
- 2024.10.24
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- その他 (国際)
- 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
- 2024.10.23
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- カンファレンス (国際)
- 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
- 2024.10.18
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- その他 (国際)
- 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
- 2024.9.11
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- 論文誌 (国際)
- 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
- 2024.7.3
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- 論文誌 (国際)
- 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
- 2024.6.25
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- カンファレンス (国際)
- 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
- 2024.6.19
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- ワークショップ (国内)
- 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
- 2024.6.5
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- ワークショップ (国内)
- 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
- 2024.6.5
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- ワークショップ (国内)
- 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
- 2024.6.5
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- 論文誌 (国際)
- 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
- 2024.4.23
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- カンファレンス (国際)
- Camera-Based Position Estimation using Frequency-Multiplexed Luminance Gradient
- Shota Shimada, Hiroaki Murakami (the University of Tokyo), Kota Tsubouchi, Takuya Sasatani (the University of Tokyo), Yoshihiro Kawahara (the University of Tokyo)
- The 22nd International Conference on Pervasive Computing and Communications
- 2024.4.22
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- カンファレンス (国際)
- Eye-tracking AD: Cutting-Edge Web Advertising on Smartphone Aligned with User's Gaze
- Kota Tsubouchi, Kenta Taoka (the University of Tokyo), Kaori Ikematsu, Shota Yamanaka, Koya Narumi (the University of Tokyo), Yasuhiro Kawahara (the University of Tokyo)
- The 22nd International Conference on Pervasive Computing and Communications
- 2024.4.22
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- カンファレンス (国際)
- Orientation Estimation using Differences in WiFi Signal Behavior in LOS and NLOS Cases
- Jiaqing Yang (Ritsumeikan University), Kota Tsubouchi, Shoma Nakamae (Ritsumeikan University), Nobuhiko Nishio (Ritsumeikan University)
- The 22nd International Conference on Pervasive Computing and Communications
- 2024.4.22
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- その他 (国内)
- GNSS衛星ごとの信号情報に対する点群ニューラルネットワークを用いたUVインデックス推定
- 厚見 昴 (東京大学), 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
- 2024.3.19
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- その他 (国内)
- トピックモデルと大規模位置履歴を用いた地域ごとの興味関心分布の分析
- 宮永 薫 (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)
- 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
- 2024.3.19
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- 論文誌 (国際)
- Boosting Feedback: A Framework for Enhancing Ground Truth Data Collection
- Kota Tsubouchi, Tatsuru Higurashi, Shuji Yamaguchi
- 2023 IEEE International Conference on Big Data
- 2024.3.1
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- 論文誌 (国際)
- SSCDV: Social Media Document Embedding with Sentiment and Topics for Financial Market Forecasting
- Kentaro Ueda (Nara Institute of Science and Technology), Hirohiko Suwa (Nara Institute of Science and Technology), Masaki Yamada (Ritsumeikan University), Yuki Ogawa (Ritsumeikan University), Eiichi Umehara (Niigata University of International and Information Studies), Tatsuo Yamashita, Kota Tsubouchi, Keiichi Yasumoto (Nara Institute of Science and Technology)
- Expert Systems with Applications
- 2024.1.12
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- カンファレンス (国際)
- Data-driven Simulation of Wireless Communication Signal Strength in Indoor Environments
- Takuhiro Shimokawa (Tokyo Institute of Technology), Kota Tsubouchi, Yoshihiro Kawahara (The University of Tokyo), Hiroaki Murakami (The University of Tokyo), Masamichi Shimosaka (Tokyo Institute of Technology)
- The thirteenth edition of the International Conference on Indoor Positioning and Indoor Navigation
- 2023.12.8
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- カンファレンス (国際)
- Enhancing Indoor Altitude Estimation on Smartphones: Resolving Ventilation Fan Effects
- Kota Tsubouchi, Yuki Hirayama (Ritsumeikan University), Takuzo Ikuta (Ritsumeikan University), Nobuhiko Nishio (Ritsumeikan University)
- The thirteenth edition of the International Conference on Indoor Positioning and Indoor Navigation
- 2023.12.8