← Search

Yilong Xu

7 accepted papers

2026

FactGuard: Agentic Video Misinformation Detection via Reinforcement Learning

ICML 2026poster

Multimodal large language models (MLLMs) have substantially advanced video misinformation detection through unified multimodal reasoning, but they often rely on fixed-depth inference and place excessive trust in internally generated assumptions, particularly in scenarios where critical evidence is s…

Cited by 0SourceScholar
2026

Parameters vs. Context: Fine-Grained Control of Knowledge Reliance in Language Models

ICLR 2026poster

Retrieval-Augmented Generation (RAG) mitigates hallucinations in Large Language Models (LLMs) by integrating external knowledge. However, conflicts between parametric knowledge and retrieved context pose challenges, particularly when retrieved information is unreliable or the model's internal knowle…

Cited by 0SourcecodeScholar
2026

Reward and Guidance through Rubrics: Promoting Exploration to Improve Multi-Domain Reasoning

ICML 2026spotlight

Recent advances in reinforcement learning (RL) have significantly improved the complex reasoning capabilities of large language models (LLMs). Despite these successes, existing methods mainly focus on single-domain RL (e.g., mathematics) with verifiable rewards (RLVR), and their reliance on purely o…

Cited by 0SourceScholar
2025

ALiiCE: Evaluating Positional Fine-grained Citation Generation

NAACL 2025long

Large Language Model (LLM) can enhance its credibility and verifiability by generating text with citations. However, existing research on citation generation is predominantly limited to sentence-level statements, neglecting the significance of positional fine-grained citations that can appear anywhe…

2025

Training a Utility-based Retriever Through Shared Context Attribution for Retrieval-Augmented Language Models

EMNLP 2025

Retrieval-Augmented Language Models boost task performance, owing to the retriever that provides external knowledge. Although crucial, the retriever primarily focuses on semantics relevance, which may not always be effective for generation. Thus, utility-based retrieval has emerged as a promising to

2024

Adaptive Token Biaser: Knowledge Editing via Biasing Key Entities

EMNLP 2024finding

The parametric knowledge memorized by large language models (LLMs) becomes outdated quickly. In-context editing (ICE) is currently the most effective method for updating the knowledge of LLMs. Recent advancements involve enhancing ICE by modifying the decoding strategy, obviating the need for alteri…

Cited by 8SourcePDFScholar