9 papers
Thinking Hard, Not Smart: Reasoning Models Fail to Ration Test-Time Compute Across Questions
Chenrui Fan, Yize Cheng, Ming Li +3
Reasoning language models increasingly use test-time compute to improve performance, but existing evaluations typically study this compute one question at a time. Yet when multiple…
How Can Rhetoric Reward-Hack AI Reviewers? Dissecting Rhetorical Sensitivity in AI-Based Peer Review
Ming Li, Chenguang Wang, Xirui Li +5
As large language models increasingly participate in scientific evaluation, we investigate a potential form of reward hacking: how rhetorical choices shape AI-review judgments when…
Representing Visual Evidence for Item Difficulty Prediction: Visual Textualization and Image-Native Modeling
Han Chen, Ming Li, Hong Jiao +1
Predicting item difficulty from content can provide an initial estimate for newly developed questions before sufficient student responses are available. Existing approaches typical…
Can LLMs Really Understand Item Difficulty Levels? Implications for Automated Item Generation Using LLMs
Xinyi Wang, Hong Jiao, Ming Li +4
The estimation of item difficulty plays a key role in both formative assessment and large-scale high-stakes summative assessments. This study explores how large language models (LL…
Sharp Pre-Schwarzian Norm Bounds for Ma-Minda Starlike Classes
Ming Li, Mei Luo
In this paper, we develop a unified framework to evaluate the pre-Schwarzian norm for the Ma-Minda starlike class. We present a direct, general computational approach. As an applic…
Self-Evolving Visual Questioner
Yijun Liang, Hengguang Zhou, Ming Li +3
Vision-language models (VLMs) are typically trained as passive answerers, while their ability to actively ask diverse, non-trivial, visual-centric and grounded questions remains un…