Internet and mobile phone text-messaging dependency: Factor structure and correlation with dysphoric mood among Japanese adults. - Xi Lu; Junko Watanabe; Qingbo Liu; Masayo Uji; Masahiro Shono; Toshinori Kitamura (Comput. Hum. Behav., 2011)

Geometric Value Iteration: Dynamic Error-Aware KL Regularization for Reinforcement Learning. - Toshinori Kitamura; Lingwei Zhu; Takamitsu Matsubara (ACML, 2021)

Cautious Actor-Critic. - Lingwei Zhu; Toshinori Kitamura; Takamitsu Matsubara (ACML, 2021)

Cautious Policy Programming: Exploiting KL Regularization in Monotonic Policy Improvement for Reinforcement Learning. - Lingwei Zhu; Toshinori Kitamura; Takamitsu Matsubara (CoRR, 2021)

ShinRL: A Library for Evaluating RL Algorithms from Theoretical and Practical Perspectives. - Toshinori Kitamura; Ryo Yonetani (CoRR, 2021)

KL-Entropy-Regularized RL with a Generative Model is Minimax Optimal. - Tadashi Kozuno; Wenhao Yang; Nino Vieillard; Toshinori Kitamura; Yunhao Tang; Jincheng Mei; Pierre Ménard; Mohammad Gheshlaghi Azar; Michal Valko; Rémi Munos; Olivier Pietquin; Matthieu Geist; et al. (CoRR, 2022)

Regularization and Variance-Weighted Regression Achieves Minimax Optimality in Linear MDPs: Theory and Practice. - Toshinori Kitamura; Tadashi Kozuno; Yunhao Tang; Nino Vieillard; Michal Valko; Wenhao Yang; Jincheng Mei; Pierre Ménard; Mohammad Gheshlaghi Azar; Rémi Munos; Olivier Pietquin; Matthieu Geist; et al. (ICML, 2023)

A Policy Gradient Primal-Dual Algorithm for Constrained MDPs with Uniform PAC Guarantees. - Toshinori Kitamura; Tadashi Kozuno; Masahiro Kato; Yuki Ichihara; Soichiro Nishimori; Akiyoshi Sannai; Sho Sonoda; Wataru Kumagai; Yutaka Matsuo (CoRR, 2024)

Near-Optimal Policy Identification in Robust Constrained Markov Decision Processes via Epigraph Form. - Toshinori Kitamura; Tadashi Kozuno; Wataru Kumagai; Kenta Hoshino; Yohei Hosoe; Kazumi Kasaura; Masashi Hamaya; Paavo Parmas; Yutaka Matsuo (ICLR, 2025)

Provably Efficient RL under Episode-Wise Safety in Constrained MDPs with Linear Function Approximation. - Toshinori Kitamura; Arnob Ghosh; Tadashi Kozuno; Wataru Kumagai; Kazumi Kasaura; Kenta Hoshino; Yohei Hosoe; Yutaka Matsuo (CoRR, 2025)

A Comprehensive Survey on Physical Risk Control in the Era of Foundation Model-enabled Robotics. - Takeshi Kojima; Yaonan Zhu; Yusuke Iwasawa; Toshinori Kitamura; Gang Yan; Shu Morikuni; Ryosuke Takanami; Alfredo Solano; Tatsuya Matsushima; Akiko Murakami; Yutaka Matsuo (CoRR, 2025)