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Yida Lu

5 accepted papers

2025

LongSafety: Evaluating Long-Context Safety of Large Language Models

ACL 2025long

As Large Language Models (LLMs) continue to advance in understanding and generating long sequences, new safety concerns have been introduced through the long context. However, the safety of LLMs in long-context tasks remains under-explored, leaving a significant gap in both evaluation and improvemen…

2025

SPaR: Self-Play with Tree-Search Refinement to Improve Instruction-Following in Large Language Models

ICLR 2025poster

Instruction-following is a fundamental capability of language models, requiring the model to recognize even the most subtle requirements in the instructions and accurately reflect them in its output. Such an ability is well-suited for and often optimized by preference learning. However, existing met…

2025

VPO: Aligning Text-to-Video Generation Models with Prompt Optimization

ICCV 2025poster

Video generation models have achieved remarkable progress in text-to-video tasks. These models are typically trained on text-video pairs with highly detailed and carefully crafted descriptions, while real-world user inputs during inference are often concise, vague, or poorly structured. This gap mak…

2024

AutoDetect: Towards a Unified Framework for Automated Weakness Detection in Large Language Models

EMNLP 2024finding

Although Large Language Models (LLMs) are becoming increasingly powerful, they still exhibit significant but subtle weaknesses, such as mistakes in instruction-following or coding tasks.As these unexpected errors could lead to severe consequences in practical deployments, it is crucial to investigat…

2024

ShieldLM: Empowering LLMs as Aligned, Customizable and Explainable Safety Detectors

EMNLP 2024finding

The safety of Large Language Models (LLMs) has gained increasing attention in recent years, but there still lacks a comprehensive approach for detecting safety issues within LLMs’ responses in an aligned, customizable and explainable manner. In this paper, we propose ShieldLM, an LLM-based safety de…