Hello everyone, my name is Zhongjian Zhang. Currently, I am a third-year Ph.D. student from Beijing University of Posts and Telecommunications (BUPT), supervised by Prof. Chuan Shi. My research interests primary focus on large language models and trustworthy graph machine learning. Specifically, my current research is mainly about the development of graph foundation model. Google Scholar citations
If you have any questions regarding my work or are interested in collaborating with me, please feel free to contact me.

🔥News

2025.10
🎉 I receive the National PhD Scholarship from the Ministry of Education of China.
2025.04
🎉 My research is supported by the BUPT Excellent PhD Students Foundation: CX20251005.
2024.12
🎉 Our paper Spattack is accepted to AAAI 2025.
2024.11
🎉 Our paper LLM4RGNN is accepted to KDD 2025.
2024.06
💼 I join China Telecommunications Corporation as a research intern.
2024.01
🎉 Our paper GraphPAR is accepted to WWW 2024.

📝Publications

FRiskGPT: A Generative Foundation Model for Financial Risk Detection
CCF-A
Zhongjian Zhang, Mengmei Zhang, Dehua Xu, Rongjun Shi, Jianfeng Liu, Fuli Meng, Huajian Xu, Xiao Wang, Ruijia Wang, Junze Chen, Minwei Tang, Chuan Shi
WWW'26 · Deployed in China Telecom "BestPay" Risk Control System.
@inproceedings{DBLP:conf/www/ZhangZXSLMXWWCT26,
  author       = {Zhongjian Zhang and
                  Mengmei Zhang and
                  Dehua Xu and
                  Rongjun Shi and
                  Jianfeng Liu and
                  Fuli Meng and
                  Huajian Xu and
                  Xiao Wang and
                  Ruijia Wang and
                  Junze Chen and
                  Minwei Tang and
                  Chuan Shi},
  editor       = {Hakim Hacid and
                  Yoelle Maarek and
                  Francesco Bonchi and
                  Ido Guy and
                  Emine Yilmaz},
  title        = {FRiskGPT: {A} Generative Foundation Model for Financial Risk Detection},
  booktitle    = {Proceedings of the {ACM} Web Conference 2026, {WWW} 2026, Dubai, United
                  Arab Emirates, originally scheduled for April 13-17, 2026, rescheduled
                  for June 29 - July 3, 2026},
  pages        = {7733--7744},
  publisher    = {{ACM}},
  year         = {2026},
  url          = {https://doi.org/10.1145/3774904.3792832},
  doi          = {10.1145/3774904.3792832},
  timestamp    = {Thu, 21 May 2026 17:35:30 +0200},
  biburl       = {https://dblp.org/rec/conf/www/ZhangZXSLMXWWCT26.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
Toward Graph-Tokenizing Large Language Models with Reconstructive Graph Instruction Tuning
CCF-A
Zhongjian Zhang, Xiao Wang, Mengmei Zhang, Jiarui Tan, Chuan Shi
WWW'26
@inproceedings{DBLP:conf/www/ZhangWZTS26,
  author       = {Zhongjian Zhang and
                  Xiao Wang and
                  Mengmei Zhang and
                  Jiarui Tan and
                  Chuan Shi},
  editor       = {Hakim Hacid and
                  Yoelle Maarek and
                  Francesco Bonchi and
                  Ido Guy and
                  Emine Yilmaz},
  title        = {Toward Graph-Tokenizing Large Language Models with Reconstructive
                  Graph Instruction Tuning},
  booktitle    = {Proceedings of the {ACM} Web Conference 2026, {WWW} 2026, Dubai, United
                  Arab Emirates, originally scheduled for April 13-17, 2026, rescheduled
                  for June 29 - July 3, 2026},
  pages        = {430--441},
  publisher    = {{ACM}},
  year         = {2026},
  url          = {https://doi.org/10.1145/3774904.3792077},
  doi          = {10.1145/3774904.3792077},
  timestamp    = {Thu, 21 May 2026 17:35:20 +0200},
  biburl       = {https://dblp.org/rec/conf/www/ZhangWZTS26.bib},
  bibsource    = {dblp computer science bibliography, https://dblp.org}
}
Can Large Language Models Improve the Adversarial Robustness of Graph Neural Networks?
CCF-A
Zhongjian Zhang, Xiao Wang, Huichi Zhou, Yue Yu, Mengmei Zhang, Cheng Yang, Chuan Shi
KDD'25
@inproceedings{DBLP:conf/kdd/Zhang0Z0Z0025,
  author       = {Zhongjian Zhang and
                  Xiao Wang and
                  Huichi Zhou and
                  Yue Yu and
                  Mengmei Zhang and
                  Cheng Yang and
                  Chuan Shi},
  title        = {Can Large Language Models Improve the Adversarial Robustness of Graph
                  Neural Networks?},
  booktitle    = {Proceedings of the 31st {ACM} {SIGKDD} Conference on Knowledge Discovery
                  and Data Mining, V.1, {KDD} 2025, Toronto, ON, Canada, August 3-7,
                  2025},
  pages        = {2008--2019},
  publisher    = {{ACM}},
  year         = {2025},
  url          = {https://doi.org/10.1145/3690624.3709256},
  doi          = {10.1145/3690624.3709256}
}
Rethinking Byzantine Robustness in Federated Recommendation from Sparse Aggregation Perspective
CCF-A
Zhongjian Zhang, Mengmei Zhang, Xiao Wang, Lingjuan Lyu, Bo Yan, Junping Du, Chuan Shi
AAAI'25
@inproceedings{DBLP:conf/aaai/ZhangZWL00025,
  author       = {Zhongjian Zhang and
                  Mengmei Zhang and
                  Xiao Wang and
                  Lingjuan Lyu and
                  Bo Yan and
                  Junping Du and
                  Chuan Shi},
  title        = {Rethinking Byzantine Robustness in Federated Recommendation from Sparse
                  Aggregation Perspective},
  booktitle    = {Thirty-Ninth {AAAI} Conference on Artificial Intelligence, {AAAI} 2025, Philadelphia, PA, USA, February 25 - March 4, 2025},
  pages        = {13331--13338},
  publisher    = {{AAAI} Press},
  year         = {2025},
  url          = {https://doi.org/10.1609/aaai.v39i12.33455},
  doi          = {10.1609/AAAI.V39I12.33455}
}
Endowing Pre-trained Graph Models with Provable Fairness
CCF-A
Zhongjian Zhang, Mengmei Zhang, Yue Yu, Cheng Yang, Jiawei Liu, Chuan Shi
WWW'24
@inproceedings{DBLP:conf/www/ZhangZYYLS24,
  author       = {Zhongjian Zhang and
                  Mengmei Zhang and
                  Yue Yu and
                  Cheng Yang and
                  Jiawei Liu and
                  Chuan Shi},
  title        = {Endowing Pre-trained Graph Models with Provable Fairness},
  booktitle    = {Proceedings of the {ACM} on Web Conference 2024, {WWW} 2024, Singapore,
                  May 13-17, 2024},
  pages        = {1045--1056},
  publisher    = {{ACM}},
  year         = {2024},
  url          = {https://doi.org/10.1145/3589334.3645703},
  doi          = {10.1145/3589334.3645703}
}
Data-centric graph learning: A survey
JCR-Q1
Yuxin Guo, Deyu Bo, Cheng Yang, Zhiyuan Lu, Zhongjian Zhang, Jixi Liu, Yufei Peng, Chuan Shi
IEEE TBD'24
@article{DBLP:journals/tbd/GuoBYLZLPS25,
  author       = {Yuxin Guo and
                  Deyu Bo and
                  Cheng Yang and
                  Zhiyuan Lu and
                  Zhongjian Zhang and
                  Jixi Liu and
                  Yufei Peng and
                  Chuan Shi},
  title        = {Data-Centric Graph Learning: {A} Survey},
  journal      = {{IEEE} Trans. Big Data},
  volume       = {11},
  number       = {1},
  pages        = {1--20},
  year         = {2025},
  url          = {https://doi.org/10.1109/TBDATA.2024.3489412},
  doi          = {10.1109/TBDATA.2024.3489412}
}

🎖Honors and Awards

1CAST PhD Support Program, Youth Talent Development Initiative2025
2National PhD Scholarship, Ministry of Education of China2025
3BUPT Excellent Ph.D. Students Foundation (CX20251005)2025
4Outstanding Graduate Student, Beijing University of Posts and Telecommunications2024
5First-class Scholarship, Beijing University of Posts and Telecommunications2023
6Outstanding Student of Shandong Province (Top 0.5%)2022
72nd Prize, 13th Lanqiao Cup National Finals, Java Software Development2022
82nd Prize, National Final of Shandong Data Innovation Competition (Team Leader)2021
91st Prize, Challenge Cup Shandong Province (Team Leader)2021
10Shandong Provincial Government Scholarship (Top 0.5%)2021

💬Talks

2025.01
Rethinking Byzantine Robustness in Federated Recommendation from Sparse Aggregation Perspective
Invited Online Talk · AITIME
Video
2024.12
Can Large Language Models Improve the Adversarial Robustness of Graph Neural Networks?
Invited Online Talk · AITIME
Video

💻Experiences

2024.06 - 2025.02
China Telecommunications Corporation
Shanghai, China
Research internFinancial Risk Service
2025.12 - Now
Hong Kong University of Science and Technology (Guangzhou)
Guangzhou, China
Research internGraph Foundation Model, Large Language Model
MentorJia Li