I am a Researcher at NTT Human Informatics Laboratories, NTT Corporation. My research focuses on mining and modeling human activities. I was a Visiting Scholar at Computer Science, Stanford University. I worked with Jure Leskovec and was part of SNAP, the InfoLab.
July 2022: Our paper "Personal History Affects Reference Points: A Case Study of Codeforces" has been accepted at ICWSM 2023.
March 2022: Our paper "Context-aware Spatio-temporal Event Prediction via Convolutional Hawkes Processes" has been accepted at Machine Learning.
January 2021: My interview was published in NTT R&D Website.
Personal History Affects Reference Points: A Case Study of Codeforces
JournalsMaya Okawa, Tomoharu Iwata, Yusuke Tanaka, Takeshi Kurashima, Hiroyuki Toda, and Hisashi KashimaMachine Learning, Vol. 111, No.8, pp.2929-2950, March 2022., Takeshi Kurashima, and Hiroyuki TodaIEICE Transactions on Information and Systems, Vol. E105-D, No.2, pp.377-386, Feb. 2022.Tomoharu Iwata, Takeshi Kurashima, Yusuke Tanaka, Hiroyuki Toda, Naonori Ueda, and Hisashi KashimaJournal of Japanese Society for Artificial Intelligence, Vol.36, No.5, p.C-L37_1-10, September 2021 (in Japanese)
User Status Estimation Using E-Commerce Site’s Access Logs
Estimating Method on Choosing the Item in E-Commerce
Program Committee Member
NeurIPS 2020-2022 - The Annual Conference on Neural Information Processing Systems, 2020, 2021, 2022 (Reviewer)
ICML 2021-2022 - The International Conference on Machine Learning, 2021, 2022
ECML-PKDD 2020 - European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, 2020
AAAI 2020-2022 - AAAI Conference on Artificial Intelligence 2020, 2021, 2022
IJCAI 2018-2020 - International Joint Conference on Artificial Intelligence 2018, 2019, 2020
Jul. 2021 - Present: Researcher at NTT Human Informatics Laboratories, NTT Corporation
Jul. 2012 - Jun. 2021: Researcher at NTT Service Evolution Laboratories, NTT Corporation
Apr. 2016 - Apr.2017: Visiting Scholar at Computer Science, Stanford University ( Sponsor: Jure Leskovec )
Oct. 2011 - Sep. 2014: Ph.D. in Informatics, Kyoto University, Japan ( Supervisor: Katsumi Tanaka )
Apr. 2006 - Jun. 2012: Researcher at NTT Cyber Solutions Laboratories, NTT Corporation
Apr. 2004 - Mar. 2006: Master of Informatics, Kyoto University, Japan
Apr. 2000 - Mar. 2004: Bachelor of Engineering, Doshisha University, Japan
E-mail: [my first name] . [my last name] .uf [at] hco.ntt.co.jp
Address: 1-1 Hikarinooka, Yokosuka, Kanagawa, 239-0847, Japan
Last updated: July 2022