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Xuehai Pan

7 accepted papers

2025

Reward Generalization in RLHF: A Topological Perspective

ACL 2025finding

Existing alignment methods share a common topology of information flow, where reward information is collected from humans, modeled with preference learning, and used to tune language models. However, this shared topology has not been systematically characterized, nor have its alternatives been thoro…

Cited by 0SourcePDFScholar
2024

Aligner: Efficient Alignment by Learning to Correct

NeurIPS 2024oral

With the rapid development of large language models (LLMs) and ever-evolving practical requirements, finding an efficient and effective alignment method has never been more critical. However, the tension between the complexity of current alignment methods and the need for rapid iteration in deployme…

Cited by 20SourcePDFScholar
2024

Safe RLHF: Safe Reinforcement Learning from Human Feedback

ICLR 2024spotlight

With the development of large language models (LLMs), striking a balance between the performance and safety of AI systems has never been more critical. However, the inherent tension between the objectives of helpfulness and harmlessness presents a significant challenge during LLM training. To addres…

2023

BeaverTails: Towards Improved Safety Alignment of LLM via a Human-Preference Dataset

NeurIPS 2023poster

In this paper, we introduce the BeaverTails dataset, aimed at fostering research on safety alignment in large language models (LLMs). This dataset uniquely separates annotations of helpfulness and harmlessness for question-answering pairs, thus offering distinct perspectives on these crucial attribu…

Cited by 400SourcePDFScholar
2023

Proactive Multi-Camera Collaboration for 3D Human Pose Estimation

ICLR 2023poster

This paper presents a multi-agent reinforcement learning (MARL) scheme for proactive Multi-Camera Collaboration in 3D Human Pose Estimation in dynamic human crowds. Traditional fixed-viewpoint multi-camera solutions for human motion capture (MoCap) are limited in capture space and susceptible to dyn…

Cited by 17SourcePDFScholar
2023

Safety Gymnasium: A Unified Safe Reinforcement Learning Benchmark

NeurIPS 2023poster

Artificial intelligence (AI) systems possess significant potential to drive societal progress. However, their deployment often faces obstacles due to substantial safety concerns. Safe reinforcement learning (SafeRL) emerges as a solution to optimize policies while simultaneously adhering to multiple…

Cited by 73SourcePDFScholar
2022

MATE: Benchmarking Multi-Agent Reinforcement Learning in Distributed Target Coverage Control

NeurIPS 2022accept

We introduce the Multi-Agent Tracking Environment (MATE), a novel multi-agent environment simulates the target coverage control problems in the real world. MATE hosts an asymmetric cooperative-competitive game consisting of two groups of learning agents--"cameras" and "targets"--with opposing intere…