Utsav Singh

Direct Preference Optimization for Primitive-Enabled Hierarchical RL: A Bilevel Approach

Repair Aware Forgetting: An Iterative Approach to Unlearning in T2I Diffusion Models

Multi-Level Multi-Turn RL Outperforms GRPO: Reasoning with Textual Feedback

Mitigating Reward Hacking in Inference-Time Alignment of T2I Diffusion Models via Distributional Regularization

LGR2: Language Guided Reward Relabeling for Accelerating Hierarchical Reinforcement Learning

On the Sample Complexity Bounds of Bilevel Reinforcement Learning

PEAR: Primitive Enabled Adaptive Relabeling for Boosting Hierarchical Reinforcement Learning

Hierarchical Preference Optimization: Learning to achieve goals via feasible subgoals prediction

DIPPER: Direct Preference Optimization for Primitive-Enabled Hierarchical Reinforcement Learning