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Han Xia

4 accepted papers

2026

RGA-Net: A Vision Enhancement Framework for Robotic Surgical Systems Using Reciprocal Attention Mechanisms

ICRA 2026poster

Robotic surgical systems rely heavily on high-quality visual feedback for precise teleoperation; yet, surgical smoke from energy-based devices significantly degrades endoscopic video feeds, compromising the human-robot interface and surgical outcomes. This paper presents RGA-Net (Reciprocal Gating a…

2024

Inverse-Q*: Token Level Reinforcement Learning for Aligning Large Language Models Without Preference Data

EMNLP 2024finding

Reinforcement Learning from Human Feedback (RLHF) has proven effective in aligning large language models with human intentions, yet it often relies on complex methodologies like Proximal Policy Optimization (PPO) that require extensive hyper-parameter tuning and present challenges in sample efficien…

2024

RoCoIns: Enhancing Robustness of Large Language Models through Code-Style Instructions

COLING 2024main

Large Language Models (LLMs) have showcased remarkable capabilities in following human instructions. However, recent studies have raised concerns about the robustness of LLMs for natural language understanding (NLU) tasks when prompted with instructions combining textual adversarial samples. In this…

Cited by 1SourcePDFScholar
2023

Orthogonal Subspace Learning for Language Model Continual Learning

EMNLP 2023long findings

Benefiting from massive corpora and advanced hardware, large language models (LLMs) exhibit remarkable capabilities in language understanding and generation. However, their performance degrades in scenarios where multiple tasks are encountered sequentially, also known as catastrophic forgetting. In…

Cited by 0SourcecodeScholar