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)
- Fine-grained Social Relationship Extraction from Real Activity Data under Coarse Supervision
- Kota Tsubouchi, Osamu Saisho (The University of Tokyo), Junichi Sato (The University of Tokyo), Seira Araki (The University of Tokyo), Masamichi Shimosaka (Tokyo Institute of Technology)
- the 2015 ACM International Symposium on Wearable Computers
- September 11, 2015
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- CONFERENCE (INTERNATIONAL)
- Forecasting Urban dynamics with Mobility Logs by Bilinear Poisson Regression
- Masamichi Shimosaka (Tokyo Institute of Technology), Keisuke Maeda (The University of Tokyo), Takeshi Tsukiji (The University of Tokyo), Kota Tsubouchi
- the 2015 ACM International Joint Conference on Pervasive and Ubiquitous Computing
- September 10, 2015
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- CONFERENCE (DOMESTIC)
- 携帯電話から得られる大規模な位置履歴情報を用いた都市動態モデリング
- 下坂 正倫,築地 毅, 坪内 孝太, 西 賢太郎, 前田 啓輔
- 2015年度人工知能学会全国大会(第29回)
- May 30, 2015
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- CONFERENCE (DOMESTIC)
- 株価掲示板情報における煽り情報の検出
- 山下 達雄, 坪内 孝太
- 2015年度人工知能学会全国大会(第29回)
- May 30, 2015
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- CONFERENCE (DOMESTIC)
- 株価掲示板情報の感情情報と株価との相関の研究
- 坪内 孝太, 山下 達雄
- 2015年度人工知能学会全国大会(第29回)
- May 30, 2015
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- WORKSHOP (DOMESTIC)
- 低ランク双線形モデルによる活動イベント発生密度推定
- 前田 啓輔（東京大学）, 下坂 正倫（東京大学）, 坪内 孝太
- 第17回情報論的学習理論ワークショップ
- November 18, 2014
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- CONFERENCE (INTERNATIONAL)
- Hourly Pedestrian Population Trends Estimation using Location Data from Smartphones Dealing with Temporal and Spatial Sparsity
- Kentaro Nishi (The University of Tokyo), Kota Tsubouchi, Masamichi Shimosaka (The University of Tokyo)
- 22nd ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems
- November 06, 2014
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- CONFERENCE (INTERNATIONAL)
- Extracting Land-Use Patterns using Location Data from Smartphones
- Kentaro Nishi (The University of Tokyo), Kota Tsubouchi, Masamichi Shimosaka (The University of Tokyo)
- The First International Conference on IoT in Urban Space
- October 31, 2014
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- CONFERENCE (DOMESTIC)
- 株価掲示板データを用いたファイナンス用ポジネガ辞書の生成
- 坪内 孝太, 山下 達雄
- 2014年度人工知能学会全国大会(第28回)
- May 01, 2014
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- CONFERENCE (DOMESTIC)
- 活動量計テータを用いた同行検出手法の研究
- 川尻 亮真（東京大学）, 坪内 孝太, 荒木 青伊良（東京大学）, 下坂 正倫（東京大学）
- 2014年度人工知能学会全国大会(第28回)
- May 01, 2014
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- CONFERENCE (INTERNATIONAL)
- Working-Relationship Detection from Fitbit Sensor Data
- Kota Tsubouchi, Ryoma Kawajiri(The University of Tokyo), Masamichi Shimosaka(The University of Tokyo)
- The 2013 ACM International Joint Conference on Pervasive and Ubiquitous Computing
- October 01, 2013