Publications

2025

RepreGuard: Detecting LLM-Generated Text by Revealing Hidden Representation Patterns

Xin Chen*, Junchao Wu *, Shu Yang, Runzhe Zhan, Zeyu Wu, Ziyang Luo, Di Wang, Min Yang, Lidia S. Chao, Derek F. Wong†

Transactions of the Association for Computational Linguistics (TACL) 2025

[PAPER] [CODE]

Is Long-to-Short a Free Lunch? Investigating Inconsistency and Reasoning Efficiency in LRMs

Shu Yang, Junchao Wu , Xuansheng Wu, Derek F. Wong, Ninhao Liu, Di Wang†

arxiv (Under Review) 2025

[PAPER] [CODE]

Overview of CCL25-Eval Task 4: Factivity Inference Evaluation 2025

Guanliang Cong, Junchao Wu , Yang Chen, Tianqi Xun, Derek F. Wong, Bin Li, Yulin Yuan†

CCL Evalation Workshop 2025

[PAPER] [CODE]

Overview of the NLPCC 2025 Shared Task 1: LLM-Generated Text Detection

Junchao Wu , Runzhe Zhan, Qianli Wang, Yulin Yuan, Lidia S. Chao, and Derek F. Wong†

NLPCC 2025

[PAPER] [CODE]

Who Wrote This? The Key to Zero-Shot LLM-Generated Text Detection Is GECScore

Junchao Wu , Runzhe Zhan, Derek F. Wong†, Shu Yang, Xuebo Liu, Lidia S. Chao, Min Zhang

COLING 2025

[PAPER] [CODE]

Understanding Aha Moments: From External Observations to Internal Mechanisms

Shu Yang, Junchao Wu , Xin Chen, Yunze Xiao, Xinyi Yang, Derek F. Wong, Di Wang†

arxiv (Under Review) 2025

[PAPER] [CODE]

Rethinking Prompt-based Debiasing in Large Language Models

Xinyi Yang, Runzhe Zhan, Derek F. Wong†, Shu Yang, Junchao Wu , Lidia S. Chao

ACL Findings 2025

[PAPER] [CODE]

Fraud-R1: A Multi-Round Benchmark for Assessing the Robustness of LLM Against Augmented Fraud and Phishing Inducements

Shu Yang, Shenzhe Zhu, Zeyu Wu, Keyu Wang, Junchi Yao, Junchao Wu , Lijie Hu, Mengdi Li, Derek F Wong, Di Wang†

ACL Findings 2025

[PAPER] [CODE]

2024

A Survey on LLM-Generated Text Detection: Necessity, Methods, and Future Directions

Junchao Wu , Shu Yang, Runzhe Zhan, Yulin Yuan†, Derek F. Wong†, Lidia S. Chao

Computational Linguistics 2024

[PAPER] [CODE]

DetectRL: Benchmarking LLM-Generated Text Detection in Real-World Scenarios

Junchao Wu , Runzhe Zhan, Derek F. Wong†, Shu Yang, Xinyi Yang, Yulin Yuan, Lidia S. Chao

NeurIPS 2024

[PAPER] [CODE]

2023

Human-in-the-loop Machine Translation with Large Language Model

Xinyi Yang, Runzhe Zhan, Derek F. Wong†, Junchao Wu , Lidia S. Chao

Proceedings of Machine Translation Summit XIX, Vol. 2: Users Track 2023

[PAPER] [CODE]

2021

“The Canton Canon” Digital Library Based on Knowledge Graph - Taking the Revolutionary Archives of Canton in the Republic of China as an Example

Junchao Wu , Ying Jiang†, Xin Chen, Lingyu Guo, Xiaotong Wei and Xiaoyan Yang

ICEIT（2021 IEEE 10th International Conference on Educational and Information Technology）2021 2021

[PAPER] [CODE]

Best Oral Presentation Award (5/57)