Selected Publications

• Auditing Data Provenance in LLM Fine-tuning via Intrinsic Distributional Fingerprints

Zirui Huang. Yunlong Mao, Wei Tong, Tingting Wu, Xin Ge, Sheng Zhong

ACM SIGSAC Conference on Computer and Communications Security (CCS 2026)

• Preventing Dataset Misuse in Stable Diffusion for Multi-User Sharing

Yubo Zhu, Xinyue Zhao, Zijian Wang, Wei Tong, Yunlong Mao, Sheng Zhong

The IEEE International Conference on Multimedia & Expo (ICME 2026)

• ProSan: Utility-based Prompt Privacy Sanitizer

Zhili Shen, Zihang Xi, Ying He, Wei Tong, Jingyu Hua, Sheng Zhong

IEEE Transactions on Information Forensics & Security, 2026

• Semantic-Aware Address Sanitization With Metric Differential Privacy

Ziliang Zhang, Wei Tong, Sungu Junjie, Sheng Zhong

IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2026)

• The LLM Already Knows: Estimating LLM-Perceived Question Difficulty via Hidden Representations

Yubo Zhu, Dongrui Liu, Zecheng Lin, Wei Tong, Sheng Zhong, Jing Shao

Conference on Empirical Methods in Natural Language Processing (EMNLP 2025)

• Detecting and Tracing Dataset Misuse in Fine-Tuning Text-to-Image Models

Songrui Wang, Yubo Zhu, Wei Tong, Sheng Zhong

IEEE/ACM International Symposium on Quality of Service (IWQoS 2025)

• Differentially Private Triangle Counting Assisted by k-Anonymity in Two-Party Models

Tingxuan Han, Wei Tong, Sheng Zhong

IEEE International Conference on Data Engineering (ICDE 2025)

• Secure Two-Party Frequent Itemset Mining With Guaranteeing Differential Privacy

Wenjie Chen, Haoyu Chen, Tingxuan Han, Wei Tong, Sheng Zhong

IEEE Transactions on Mobile Computing, vol. 24, pp. 276-292, Jan. 2025 

• Data Poisoning Attacks to Locally Differentially Private Frequent Itemset Mining Protocols

Wei Tong, Haoyu Chen, Jiacheng Niu, Sheng Zhong

ACM SIGSAC Conference on Computer and Communications Security (CCS 2024)

• Backdoor Attack Against Split Neural Network-Based Vertical Federated Learning

Ying He, Zhili Shen, Jingyu Hua, Qixuan Dong, Jiacheng Niu, Wei Tong, Xu Huang, Chen Li, Sheng Zhong

IEEE Transactions on Information Forensics & Security, vol. 19, pp. 748-763, 2024

• Scalable Differentially Private Model Publishing via Private Iterative Sample Selection

Wei Tong, Jiacheng Niu, Jingyu Hua, Qun Li, Sheng Zhong

IEEE Transactions on Dependable and Secure Computing, vol. 21, no. 4, pp. 2494-2506, July/Aug. 2024

• Differentially Private Two-Party Top-k Frequent Item Mining

Wei Tong, Wenjie Chen, Tingxuan Han, Haoyu Chen, Sheng Zhong

The 43rd IEEE International Conference on Distributed Computing (ICDCS 2023)

• Understanding Location Privacy of the Point-of-Interest Aggregate Data via Practical Attacks and Defenses

Wei Tong, Yinggang Tong, Chang Xia, Jingyu Hua, Qun Li, Sheng Zhong

IEEE Transactions on Dependable and Secure Computing, vol. 20, no. 3, pp. 2433-2449, May/Jun. 2023

• Privacy-Preserving Data Integrity Verification for Secure Mobile Edge Storage

Wei Tong, Wenjie Chen, Bingbing Jiang, Fengyuan Xu, Qun Li, Sheng Zhong

IEEE Transactions on Mobile Computing, vol. 22, no. 9, pp. 5463-5478, Sept. 2023

• Practical Location Privacy Attacks and Defense on Point-of-interest Aggregates

Wei Tong, Chang Xia, Jingyu Hua, Qun Li, and Sheng Zhong

The 41st IEEE International Conference on Distributed Computing (ICDCS 2021)

• Privacy-Preserving Data Integrity Verification in Mobile Edge Computing

Wei Tong, Bingbing Jiang, Fengyuan Xu, Qun Li, Sheng Zhong

The 39th IEEE International Conference on Distributed Computing (ICDCS 2019)

• A Jointly Differentially Private Scheduling Protocol for Ridesharing Services

Wei Tong, Jingyu Hua, Sheng Zhong

IEEE Transactions on Information Forensics & Security, vol. 12, no. 10, pp. 2444-2456, Oct. 2017

• A Unified Resource Allocation Framework for Defending against Pollution Attacks in Wireless Network Coding Systems

Wei Tong, Sheng Zhong

IEEE Transactions on Information Forensics & Security, vol. 11, no. 10, pp. 2255-2267, Oct. 2016

Professional Services

PC Member

• ICDCS '25, '26

• Globecom '21, '22, '23, '24, '25, '26

• IJCNN'25, '26 (Area Chair)

Publications Co-Chair: ICCCN'26

Reviewer

• IEEE TKDE, IEEE TDSC, IEEE TMC, IEEE TIFS, IEEE TWC, IEEE TVT, IEEE TCOM, IEEE TCC, Information Fusion, Computer Networks, Information Sciences, Pattern Recognition, IEEE IoT Journal, Computers & Security, Expert Systems With Applications, ...

Teaching

• Introduction to Information and Computer Science - Experiments, Fall 2020/2021/2022/2023/2024/2025, Nanjing University

• Data Structure and Algorithm Analysis, Fall 2025, Nanjing University

• Computer Networks, Fall 2025, Nanjing University

• Network Security and Intrusion Detection, Fall 2020-2024, Nanjing University

Students

• Wenjie Chen 2021 - Doctoral student

• Tingxuan Han 2022 - Doctoral student

• Zijian Wang 2025 - Doctoral student

• Yubo Zhu 2025 - Doctoral student

• Yisheng Li 2025 - Doctoral student

• Ziliang Zhang 2023 - Master's student

• Xiannong Ding 2024 - Master's student 

• Ke Liu 2024 - Master's student 

• Ruizhe Song 2024 - Master's student 

• Miaolin Chen 2025 - Master's student

Alumni

• Jiacheng Niu M.S. 2020 - 2023 -> e2uninova

• Yinggang Tong M.S. 2020 - 2023 -> Microsoft

• Haoyu Chen M.S. 2022 - 2025 -> Huawei