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Xudong Wu

2 accepted papers

2026

Occupancy Reward Shaping: Improving Credit Assignment for Offline Goal-Conditioned Reinforcement Learning

ICLR 2026poster

While offline goal-conditioned reinforcement learning (GCRL) provides a simple recipe to train generalist policies from large unlabeled datasets, Offline GCRL agents trained with sparse rewards typically struggle on long-horizon tasks. Manually designing task-specific reward functions undermines the…

Cited by 0SourcecodeScholar
2025

External Memory Matters: Generalizable Object-Action Memory for Retrieval-Augmented Long-Term Video Understanding

IJCAI 2025

Long video understanding with Large Language Models (LLMs) enables the description of objects that are not explicitly present in the training data. However, continuous changes in known objects and the emergence of new ones require up-to-date knowledge of objects and their dynamics for effective unde

Cited by 0SourcePDFScholar