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Mengqi Yuan

4 accepted papers

2026

ComGS: Efficient 3D Object-Scene Composition via Surface Octahedral Probes

ICLR 2026poster

Gaussian Splatting (GS) enables immersive rendering, but realistic 3D object–scene composition remains challenging. Baked appearance and shadow information in GS radiance fields cause inconsistencies when combining objects and scenes. Addressing this requires relightable object reconstruction and sc…

Cited by 0SourcecodeScholar
2025

AdvAgent: Controllable Blackbox Red-teaming on Web Agents

ICML 2025poster

Foundation model-based agents are increasingly used to automate complex tasks, enhancing efficiency and productivity. However, their access to sensitive resources and autonomous decision-making also introduce significant security risks, where successful attacks could lead to severe consequences. To…

2024

Direct Multi-Turn Preference Optimization for Language Agents

EMNLP 2024main

Adapting Large Language Models (LLMs) for agent tasks is critical in developing language agents. Direct Preference Optimization (DPO) is a promising technique for this adaptation with the alleviation of compounding errors, offering a means to directly optimize Reinforcement Learning (RL) objectives.…