collaborators

7 papers

cs.AI2026

MatrAIx: Simulating the World with 8.3 Billion Persona Agents

Xiaomin Li, Yuexing Hao, Jianheng Hou +90

Human evaluation of AI systems and digital products is costly, slow, and difficult to scale. Offline evaluations are more scalable but often abstract away human diversity and inter…

cs.CL2026

CurveShift: Is Agent Progress Scalar? Separating Level from Shape

Hanwen Xing, Pengyun Wang, BingXu Meng +8

Progress in large language models is often summarized using a single scalar measure, such as a time horizon, a latent ability estimate, or an aggregate benchmark score. These summa…

cs.LG2026

Breaking the Quality-Privacy Tradeoff in Tabular Data Generation via In-Context Learning

Xinyan Han, Yan Lu, Xiaoyu Lin +5

Tabular data synthesis aims to generate high-quality data while preserving privacy. However, we find that existing tabular generative models exhibit a clear tradeoff in the small-d…

cs.CR2025

AdaSteer: Your Aligned LLM is Inherently an Adaptive Jailbreak Defender

Weixiang Zhao, Jiahe Guo, Yulin Hu +8

Despite extensive efforts in safety alignment, large language models (LLMs) remain vulnerable to jailbreak attacks. Activation steering offers a training-free defense method but re…

cs.CL2025

Chain of Strategy Optimization Makes Large Language Models Better Emotional Supporter

Weixiang Zhao, Xingyu Sui, Xinyang Han +9

The growing emotional stress in modern society has increased the demand for Emotional Support Conversations (ESC). While Large Language Models (LLMs) show promise for ESC, they fac…

cs.LG2025

Understanding Pan-Sharpening via Generalized Inverse

Shiqi Liu, Yihua Tan, Yutong Bai +1

Pan-sharpening algorithms utilize a panchromatic image and a multispectral image to generate a high spatial and high spectral image. However, the optimizations of the algorithms ar…