Chenxiao Yu

Tracing Moral Foundations in Large Language Models

Chenxiao Yu^†, Bowen Yi, Farzan Karimi-Malekabadi, Suhaib Abdurahman, Jinyi Ye, Shrikanth Narayanan, Yue Zhao, Morteza Dehghani

Do LLMs have human-like moral cognition?

Realistic threat perception drives intergroup conflict: A causal, dynamic analysis using generative-agent simulations

Suhaib Abdurahman, Farzan Karimi-Malekabadi, Chenxiao Yu, Nour S. Kteily, Morteza Dehghani

A causal analysis of how realistic threat perception drives intergroup conflict using generative-agent simulations.

Mitigating Hallucinations in Large Language Models via Causal Reasoning

Yuangang Li, Yiqing Shen, Yi Nian, Jiechao Gao, Ziyi Wang, Chenxiao Yu, Shawn Li, Jie Wang, Xiyang Hu, Yue Zhao

Proceedings of the AAAI Conference on Artificial Intelligence

A causal intervention framework that reduces hallucinations in LLMs by identifying and adjusting unstable internal pathways.

A Large-Scale Simulation on Large Language Models for Decision-Making

Chenxiao Yu^†, Jinyi Ye, Lincan Li, Zhaoyang Li, Emilio Ferrara, Xiyang Hu, Yue Zhao

An extensive simulation study analyzing decision-making patterns of LLMs across identity conditions, threat cues, and moral scenarios.

StealthRank: LLM Ranking Manipulation via Stealthy Prompt Optimization

Yiming Tang^†, Yi Fan, Chenxiao Yu^†, Tiankai Yang, Yue Zhao, Xiyang Hu

A framework that subtly manipulates LLM ranking outputs using optimized stealth prompts while evading detection.