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Lingrui Mei

14 accepted papers

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
2026

YuE: Scaling Open Foundation Models for Long-Form Music Generation

ICLR 2026poster

We tackle the task of long-form music generation, particularly the challenging \textbf{lyrics-to-song} problem, by introducing \textbf{YuE (乐)}, a family of open-source music generation foundation models. Specifically, YuE scales to trillions of tokens and generates up to five minutes of music while…

Cited by 0SourcecodeScholar
2025

AdaptFlow: Adaptive Workflow Optimization via Meta-Learning

EMNLP 2025

Recent advances in large language models (LLMs) have sparked growing interest in agentic workflows—structured sequences of LLM invocations designed to solve complex tasks. However, existing approaches often rely on static templates or manually designed workflows, which limit adaptability to diverse

Cited by 0SourcePDFScholar
2025

Can Graph Descriptive Order Affect Solving Graph Problems with LLMs?

ACL 2025long

Large language models (LLMs) have achieved significant success in reasoning tasks, including mathematical reasoning and logical deduction. Among these reasoning tasks, graph problems stand out due to their complexity and unique structural characteristics, attracting considerable attention from resea…

Cited by 0SourcePDFScholar
2025

Context-DPO: Aligning Language Models for Context-Faithfulness

ACL 2025finding

Reliable responses from large language models (LLMs) require adherence to user instructions and retrieved information. While alignment techniques help LLMs align with human intentions and values, improving context-faithfulness through alignment remains underexplored. To address this, we propose Cont…

2025

Decoding by Contrasting Knowledge: Enhancing Large Language Model Confidence on Edited Facts

ACL 2025long

The knowledge within large language models (LLMs) may become outdated quickly. While in-context editing (ICE) is currently the most effective method for knowledge editing (KE), it is constrained by the black-box modeling of LLMs and thus lacks interpretability. Our work aims to elucidate the superio…

Cited by 0SourcePDFScholar
2025

Is Factuality Enhancement a Free Lunch For LLMs? Better Factuality Can Lead to Worse Context-Faithfulness

ICLR 2025poster

As the modern tools of choice for text understanding and generation, large language models (LLMs) are expected to accurately output answers by leveraging the input context. This requires LLMs to possess both context-faithfulness and factual accuracy. While extensive efforts aim to reduce hallucinati…

Cited by 3SourcePDFScholar
2025

Vulnerability of Text-to-Image Models to Prompt Template Stealing: A Differential Evolution Approach

ACL 2025finding

Prompt trading has emerged as a significant intellectual property concern in recent years, where vendors entice users by showcasing sample images before selling prompt templates that can generate similar images. This work investigates a critical security vulnerability: attackers can steal prompt tem…

2025

Who is in the Spotlight: The Hidden Bias Undermining Multimodal Retrieval-Augmented Generation

EMNLP 2025

Multimodal Retrieval-Augmented Generation (RAG) systems have become essential in knowledge-intensive and open-domain tasks. As retrieval complexity increases, ensuring the robustness of these systems is critical. However, current RAG models are highly sensitive to the order in which evidence is pres

2025

“Not Aligned” is Not “Malicious”: Being Careful about Hallucinations of Large Language Models’ Jailbreak

COLING 2025main

“Jailbreak” is a major safety concern of Large Language Models (LLMs), which occurs when malicious prompts lead LLMs to produce harmful outputs, raising issues about the reliability and safety of LLMs. Therefore, an effective evaluation of jailbreaks is very crucial to develop its mitigation strateg…

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
2024

LPNL: Scalable Link Prediction with Large Language Models

ACL 2024findings

Exploring the application of large language models (LLMs) to graph learning is an emerging endeavor. However, the vast amount of information inherent in large graphs poses significant challenges to graph learning with LLMs. This work focuses on the link prediction task and introduces **LPNL** (Link…

Cited by 10SourcePDFScholar
2024

SLANG: New Concept Comprehension of Large Language Models

EMNLP 2024main

The dynamic nature of language, particularly evident in the realm of slang and memes on the Internet, poses serious challenges to the adaptability of Large Language Models (LLMs). Traditionally anchored to static datasets, these models often struggle to keep up with the rapid linguistic evolution ch…