collaborators

10 papers

cs.CL2026

Rewarding the Scientific Process: Process-Level Reward Modeling for Agentic Data Analysis

Zhisong Qiu, Shuofei Qiao, Kewei Xu +4

Process Reward Models (PRMs) have achieved remarkable success in augmenting the reasoning capabilities of Large Language Models (LLMs) within static domains such as mathematics. Ho…

cs.CL2026

Exploring Autonomous Agentic Data Engineering for Model Specialization

Yujie Luo, Xiangyuan Ru, Jingsheng Zheng +10

Large Language Models (LLMs) have demonstrated strong performance on general tasks, while often struggling to adapt to specialized domains without high-quality domain-specific data…

cs.LG2026

Adaptive Loss Balancing for Noise-Robust GRPO in Generative Recommendation

Kewei Xu, Junbo Qi, Yanyan Zou +3

Reinforcement learning (RL) presents a promising avenue for enhancing generative recommendation beyond supervised imitation, leveraging reward signals to guide policy improvement.…

cs.LG2026

LongDS-Bench: On the Failure of Long-Horizon Agentic Data Analysis

Kewei Xu, Xiaoben Lu, Shuofei Qiao +4

Real-world data analysis is inherently iterative, yet existing benchmarks mostly evaluate isolated or short interactive tasks, leaving agents' ability to track evolving analytical…

cs.AI2026

From Reactive to Proactive: Assessing the Proactivity of Voice Agents via ProVoice-Bench

Ke Xu, Yuhao Wang, Yu Wang

Recent advancements in LLM agents are gradually shifting from reactive, text-based paradigms toward proactive, multimodal interaction. However, existing benchmarks primarily focus…

cs.CR2026

AgentWard: A Lifecycle Security Architecture for Autonomous AI Agents

Yixiang Zhang, Xinhao Deng, Jiaqing Wu +3

Autonomous AI agents extend large language models into full runtime systems that load skills, ingest external content, maintain memory, plan multi-step actions, and invoke privileg…