activity
20242026
collaborators

7 papers

cs.CL2026

Skills-Coach: A Self-Evolving Skill Optimizer via Training-Free GRPO

Yu Tian, Jiawei Chen, Lifan Zheng +5

We introduce Skills-Coach, a novel automated framework designed to significantly enhance the self-evolution of skills within Large Language Model (LLM)-based agents. Addressing the…

cs.CL2026

LCO: LLM-based Constraint Optimization for Safer Agentic LLMs in Real-world Tasks

Jiayong Wan, Jiawei Chen, Zhaoxia Yin +2

Large Language Models (LLMs) are increasingly acting as autonomous agents, but their continuous interaction with the environment can lead to in-context reward hacking (ICRH), a phe…

cs.CR2025

Red Teaming Large Reasoning Models

Jiawei Chen, Yang Yang, Chao Yu +6

Large Reasoning Models (LRMs) have emerged as a powerful advancement in multi-step reasoning tasks, offering enhanced transparency and logical consistency through explicit chains o…

cs.CR2025

KG-DF: A Black-box Defense Framework against Jailbreak Attacks Based on Knowledge Graphs

Shuyuan Liu, Jiawei Chen, Xiao Yang +2

With the widespread application of large language models (LLMs) in various fields, the security challenges they face have become increasingly prominent, especially the issue of jai…

cs.LG2025

Exploring the Secondary Risks of Large Language Models

Jiawei Chen, Zhengwei Fang, Yu Tian +4

Ensuring the safety and alignment of Large Language Models is a significant challenge with their growing integration into critical applications and societal functions. While prior…

cs.CV2024

AutoBreach: Universal and Adaptive Jailbreaking with Efficient Wordplay-Guided Optimization

Jiawei Chen, Xiao Yang, Zhengwei Fang +4

Despite the widespread application of large language models (LLMs) across various tasks, recent studies indicate that they are susceptible to jailbreak attacks, which can render th…

cs.MM2024

Exploring the Robustness of Decision-Level Through Adversarial Attacks on LLM-Based Embodied Models

Shuyuan Liu, Jiawei Chen, Shouwei Ruan +2

Embodied intelligence empowers agents with a profound sense of perception, enabling them to respond in a manner closely aligned with real-world situations. Large Language Models (L…