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cs.CL2025

Beyond Over-Refusal: Scenario-Based Diagnostics and Post-Hoc Mitigation for Exaggerated Refusals in LLMs

Shuzhou Yuan, Ercong Nie, Yinuo Sun +3

Large language models (LLMs) frequently produce false refusals, declining benign requests that contain terms resembling unsafe queries. We address this challenge by introducing two…

cs.CL2025

CoDAE: Adapting Large Language Models for Education via Chain-of-Thought Data Augmentation

Shuzhou Yuan, William LaCroix, Hardik Ghoshal +2

Large Language Models (LLMs) are increasingly employed as AI tutors due to their scalability and potential for personalized instruction. However, off-the-shelf LLMs often underperf…

cs.CL2025

Hateful Person or Hateful Model? Investigating the Role of Personas in Hate Speech Detection by Large Language Models

Shuzhou Yuan, Ercong Nie, Mario Tawfelis +3

Hate speech detection is a socially sensitive and inherently subjective task, with judgments often varying based on personal traits. While prior work has examined how socio-demogra…

cs.CL2025

LLM in the Loop: Creating the ParaDeHate Dataset for Hate Speech Detoxification

Shuzhou Yuan, Ercong Nie, Lukas Kouba +4

Detoxification, the task of rewriting harmful language into non-toxic text, has become increasingly important amid the growing prevalence of toxic content online. However, high-qua…

cs.CL2025

Can Hallucinations Help? Boosting LLMs for Drug Discovery

Shuzhou Yuan, Zhan Qu, Ashish Yashwanth Kangen +1

Hallucinations in large language models (LLMs), plausible but factually inaccurate text, are often viewed as undesirable. However, recent work suggests that such outputs may hold c…