← Search

Chuanyuan Tan

3 accepted papers

2025

Learning to Refuse: Towards Mitigating Privacy Risks in LLMs

COLING 2025main

Large language models (LLMs) exhibit remarkable capabilities in understanding and generating natural language. However, these models can inadvertently memorize private information, posing significant privacy risks. This study addresses the challenge of enabling LLMs to protect specific individuals’…

2025

UAQFact: Evaluating Factual Knowledge Utilization of LLMs on Unanswerable Questions

ACL 2025finding

Handling unanswerable questions (UAQ) is crucial for LLMs, as it helps prevent misleading responses in complex situations. While previous studies have built several datasets to assess LLMs’ performance on UAQ, these datasets lack factual knowledge support, which limits the evaluation of LLMs’ abilit…

2024

Probing Language Models for Pre-training Data Detection

ACL 2024long

Large Language Models (LLMs) have shown their impressive capabilities, while also raising concerns about the data contamination problems due to privacy issues and leakage of benchmark datasets in the pre-training phase. Therefore, it is vital to detect the contamination by checking whether an LLM ha…