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Chenxu Wang

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#artificial intelligence Preprint Oct 2026

AgentSafeEvo: Adversarial Co-Evolution for LLM Agent Safety

This paper introduces AgentSafeEvo, a co-evolutionary reinforcement learning framework for agent safety built on an attacker-defender game spanning diverse tasks and attack types, and introduces learnability-guided task weighting, which uses within-task defender-reward variability to adjust each task's contribution to...

Chen-Xu Wang, Xiaoyu Wen, Han Qi et al. · 0 citations
#natural language process... Preprint Sep 2026

When Updating Stops Being Learning: Rethinking LLM Self-Evolution via learnable information gain

A holistic framework based on learnable information gain, which measures how much novel, parameterizable information a round provides relative to the previous round, and proposes ATRI (Adaptive Training Regulation via Information-gain), which reweights samples within a round and halts training across rounds when inform...

Chen-Xu Wang, Chao-Zhuo Li, Xin-Ze Shi et al. · 0 citations
Preprint Aug 2026

JailbreakSkill: Scaling Automated Red-Teaming with Reusable and Ever-Evolving Skills

This work introduces \textsc{JailbreakSkill}, a skill-centric framework for scaling automated red-teaming through reusable and continuously evolving attack capabilities, which packages existing attack strategies into modular, agent-ready skills that can be directly reused and adaptively selected across tasks and target...

Xiaoyu Wen, Jiajia Li, Zhida He et al. · 2 citations
Book Open access Jul 2026

STAR: Staged Training with Aligned Reinforcement Learning and Multi-Faceted Distillation for Interpretable E-commerce Relevance

STAR—Staged Training with Aligned Reinforcement Learning and Multi-Faceted Distillation is proposed, a progressive framework that follows a reasoning, ranking, and transfer pipeline to imbue dense models with both high performance and interpretability.

Chenxu Wang, Jianzhi Shao, Chi Zhang et al. · 0 citations
Book Open access Jul 2026

TRACE: Term-level Reasoning And Chain-of-thought Enhanced distillation for E-commerce Multi-modal Relevance Learning

The proposed TRACE (Term-level Reasoning And Chain-of-thought Enhanced distillation), a framework designed for deploying advanced reasoning capabilities at scale, enhances an LLM's multi-modal reasoning by employing Group Relative Policy Optimization (GRPO) guided by a term-level Chain-of-Thought (CoT) reward function,...

Chenxu Wang, Chi Zhang, Fang liang et al. · 0 citations

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