Publications

JOURNAL (INTERNATIONAL)
Forecasting Citywide Crowd Transition Process via Convolutional Recurrent Neural Networks: Zekun Cai (the University of Tokyo), Renhe Jiang (the University of Tokyo), Xinlei Lian (the University of Tokyo), Chuang Yang (the University of Tokyo), Zhaonan Wang (National Institute of Advanced Industrial Science and Technology), Zipei Fan (the University of Tokyo), Kota Tsubouchi, Hill Hiroki Kobayashi (the University of Tokyo), Xuan Song (the University of Tokyo), Ryosuke Shibasaki (the University of Tokyo); IEEE Transactions on Mobile Computing (TMC journal); October 17, 2023

CONFERENCE (INTERNATIONAL)
Off-Policy Evaluation of Ranking Policies under Diverse User Behavior: Haruka Kiyohara (Tokyo Institute of Technology), Masatoshi Uehara (Cornell University), Yusuke Narita (Yale University), Nobuyuki Shimizu (Yahoo Japan Corporation), Yasuo Yamamoto (Yahoo Japan Corporation), Yuta Saito (Cornell University); 29TH ACM SIGKDD CONFERENCE ON KNOWLEDGE DISCOVERY AND DATA MINING (KDD 2023); August 04, 2023

CONFERENCE (INTERNATIONAL)
Simpler is Much Faster: Fair and Independent Inner Product Search: Kazuyoshi Aoyama (Osaka University), Daichi Amagata (Osaka University), Sumio Fujita, Takahiro Hara (Osaka University); The 46th International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 2023); July 18, 2023

CONFERENCE (DOMESTIC)
社内コンペティションによる閉店拠点の予測: 竹下奈知子, 山口修司, 笹谷奈翁美, 坪内孝太; 2023年度人工知能学会全国大会（第37回） (JSAI 2023); June 09, 2023

CONFERENCE (DOMESTIC)
公平性を考慮した高速な内積探索: 青山和禎 (阪大), 天方大地 (阪大), 藤田澄男, 原隆浩 (阪大); 第15回データ工学と情報マネジメントに関するフォーラム（第21回日本データベース学会年次大会） (DEIM2023); April 25, 2023

CONFERENCE (DOMESTIC)
暑熱順化を考慮したソーシャルヒートセンサの設計: 飯田静空 (NAIST), 若宮翔子 (NAIST), 清水伸幸, 藤田澄男, 荒牧英治 (NAIST); 第15回データ工学と情報マネジメントに関するフォーラム（第21回日本データベース学会年次大会） (DEIM 2023); April 25, 2023

CONFERENCE (DOMESTIC)
検索クエリを用いたCOVID-19 ワクチンに対する懸念の定量化: 上原誠 (NAIST), 藤田澄男, 清水伸幸, 劉康明 (NAIST), 若宮翔子 (NAIST), 荒牧英治 (NAIST); 第15回データ工学と情報マネジメントに関するフォーラム（第21回日本データベース学会年次大会） (DEIM 2023); April 25, 2023

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 (PerCom 2023); March 16, 2023

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 (PerCom 2023); March 16, 2023

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 (PerCom 2023); March 15, 2023

WORKSHOP (INTERNATIONAL)
Leveraging Context-dependent Click Model for Off-Policy Evaluation of Ranking Policies: Haruka Kiyohara (Tokyo Institute of Technology), Nobuyuki Shimizu, Yasuo Yamamoto; The 16th ACM International Conference on Web Search and Data Mining (WSDM) WORKSHOP ON INTERACTIVE RECOMMENDER SYSTEMS (WSDM IRS Workshop); February 27, 2023

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 (ACM HotMobile 2023); February 22, 2023

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 (IMWUT); February 01, 2023

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 (IPSJ SIGUBI); January 20, 2023

JOURNAL (INTERNATIONAL)
Predicting Smoking Prevalence in Japan Using Search Volumes in an Internet Search Engine: An Infodemiology Study: Kazuya Taira (Kyoto univ.), Takahiro Itaya (Kyoto univ.), Sumio Fujita; Journal of Medical Internet Research (JMIR); December 14, 2022

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 (SenSys 2022); November 06, 2022

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 (SenSys 2022); November 06, 2022

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 (SenSys 2022); November 06, 2022

WORKSHOP (INTERNATIONAL)
Leveraging Context-dependent Click Model for Off-Policy Evaluation of Ranking Policies: Haruka Kiyohara (Tokyo Institute of Technology), Nobuyuki Shimizu, Yasuo Yamamoto; The 16th ACM Recommender Systems Conference Consequences Workshop (RecSys Consequences Workshop); September 18, 2022

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 (IPIN2022); September 07, 2022