Classifier-Aided Maximization of Feasible- Error-Region for Robust Manipulation Learning. - Hirokazu Ishida; Kei Okada; Masayuki Inaba (IEEE Robotics Autom. Lett., 2021)

Sampling-Based Global Path Planning Using Convex Polytope Approximation for Narrow Collision-Free Space of Humanoid. - Naoki Hiraoka; Hirokazu Ishida; Takuma Hiraoka; Kunio Kojima; Kei Okada; Masayuki Inaba (Int. J. Humanoid Robotics, 2024)

CoverLib: Classifiers-Equipped Experience Library by Iterative Problem Distribution Coverage Maximization for Domain-Tuned Motion Planning. - Hirokazu Ishida; Naoki Hiraoka; Kei Okada; Masayuki Inaba (IEEE Trans. Robotics, 2025)

Dexterous grasp data augmentation based on grasp synthesis with fingertip workspace cloud and contact-aware sampling. - Liqi Wu; Haoyu Jia; Kento Kawaharazuka; Hirokazu Ishida; Kei Okada (Adv. Robotics, 2025)