Qisai Liu

Iowa State University

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Publication activitypapers/week, last 8 weeks

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Constitutional AI & AI Ethics (1)RLHF & Preference Learning (1)Robotics & Embodied AI (1)

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Hsin-Jung Yang (1)Zhanhong Jiang (1)Prajwal Koirala (1)Cody Fleming (1)

Papers (1)

Feb 19, 2026

3w ago·also Cornell

LexiSafe: Offline Safe Reinforcement Learning with Lexicographic Safety-Reward Hierarchy

Guaranteeing safety in offline RL is now more tractable: LexiSafe uses lexicographic prioritization to provably reduce safety violations without sacrificing performance.

Hsin-Jung Yang, Zhanhong Jiang, Prajwal Koirala +3

Constitutional AI & AI Ethics RLHF & Preference Learning Robotics & Embodied AI

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Qisai Liu

Publication activitypapers/week, last 8 weeks

Research focus

Frequent co-authors

Papers (1)