collaborators

7 papers

cs.CR2026

Diagnose Before You Refine: Multi-Dimensional Judge Feedback for Query-Efficient Jailbreak Attacks

Yixin Tan, Chia-Yi Hsu, Jiayang Liu +2

Automated jailbreak attacks rely on evaluation feedback to optimize adversarial prompts, but existing methods often lack fine-grained diagnostic information. We propose Jev-Guided…

cs.CL2026

The Benchmark Illusion: Pruned LLMs Can Pass Multiple Choice but Fail to Answer

Rui Wen, Lu Sun, Jiayang Liu +3

Compressing large language models reduces memory use and inference cost, but it can also create failures that standard benchmarks miss. A pruned model may still perform well on mul…

cs.CV2025

RoadSceneVQA: Benchmarking Visual Question Answering in Roadside Perception Systems for Intelligent Transportation System

Runwei Guan, Rongsheng Hu, Shangshu Chen +10

Current roadside perception systems mainly focus on instance-level perception, which fall short in enabling interaction via natural language and reasoning about traffic behaviors i…

cs.CV2025

T2V-OptJail: Discrete Prompt Optimization for Text-to-Video Jailbreak Attacks

Jiayang Liu, Siyuan Liang, Shiqian Zhao +5

In recent years, fueled by the rapid advancement of diffusion models, text-to-video (T2V) generation models have achieved remarkable progress, with notable examples including Pika,…

cs.CV2025

Benchmarking the Trustworthiness in Multimodal LLMs for Video Understanding

Youze Wang, Zijun Chen, Ruoyu Chen +8

Recent advancements in multimodal large language models for video understanding (videoLLMs) have enhanced their capacity to process complex spatiotemporal data. However, challenges…

cs.CR2025

T2VShield: Model-Agnostic Jailbreak Defense for Text-to-Video Models

Siyuan Liang, Jiayang Liu, Jiecheng Zhai +5

The rapid development of generative artificial intelligence has made text to video models essential for building future multimodal world simulators. However, these models remain vu…

cs.CV2025

When Memory Becomes a Vulnerability: Towards Multi-turn Jailbreak Attacks against Text-to-Image Generation Systems

Shiqian Zhao, Jiayang Liu, Yiming Li +9

Modern text-to-image (T2I) generation systems (e.g., DALLE 3) exploit the memory mechanism, which captures key information in multi-turn interactions for faithful generation…