About Me
Hi! I am a Postdoctoral Research Associate in the Department of Electrical and Computer Engineering at Carnegie Mellon University, working with Prof. Vyas Sekar. I received my Ph.D. in Computer Science from Tsinghua University, where I was co-advised by Prof. Jianping Wu and Prof. Qi Li. My research focuses on network security and AI for security. I am particularly interested in developing practical, AI-driven approaches to address both enduring and emerging threats in Internet infrastructure and networked systems.
News
Jun. 2026
Our adversarial ASRank manipulation paper was accepted to USENIX Security 2026! 🎉
Sep. 2025
I gave a talk on stealthy BGP hijacking at ySec seminar hosted by ECNU! Had a great conversation with people at ECNU!
Sep. 2025
Our stealthy BGP hijacking paper received available, functional, and reproduced badges in NDSS 2026 Artefact Evaluation! 🎉
Sep. 2025
matrix-bgpsim v1.0.1 was out! A fast, efficient matrix-based BGP simulator with GPU acceleration.
Give it a try!
Aug. 2025
Our stealthy BGP hijacking paper was accepted to NDSS 2026! 🎉
Jun. 2025
Our lightweight consensus paper was accepted to Journal of Software! 🎉
Feb. 2025
I gave a talk on BGP anomaly detection at APRICOT 2025 in Petaling Jaya, Malaysia! Had a great conversation with people at Kentik!
Jan. 2025
I gave a talk on BGP anomaly detection at InForSec 2025 in Beijing, China! Had a great conversation with people at CAS!
Jan. 2025
Our BGP anomaly detection poster at Westlake Forum won the only Best Poster Award! 🎉
Nov. 2024
I gave a talk on BGP anomaly detection at ChinaCrypt 2024 in Hangzhou, China! Had a great conversation with people at ZJU!
Aug. 2024
I presented our BGP anomaly detection paper at USENIX Security 2024. We received the Distinguished Paper Award and the only Internet Defense Prize! 🎉
Jan. 2024
Our BGP anomaly detection paper was accepted to USENIX Security 2024! 🎉
Jun. 2023
Our encrypted traffic detection paper was accepted to NDSS 2024! 🎉
May 2023
Our root cause localization paper was accepted to Journal of Systems and Software! 🎉
Publications
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Yi Xu, Yihao Chen, Ke Xu, Qi Li, Jianping Wu
The 35th USENIX Security Symposium (USENIX Security'26)
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Yihao Chen, Qi Li, Ke Xu, Zhuotao Liu, Jianping Wu
The Network and Distributed System Security Symposium 2026 (NDSS'26)
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Yixiang Zhang, Xinhao Deng, Zhongyi Gu, Yihao Chen, Ke Xu, Qi Li, Jianping Wu
arXiv preprint (arXiv:2510.07176)
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Yi Xu, Yihao Chen, Xiaoliang Wang, Ke Xu, Qi Li
The Journal of Software (ISSN 1000-9825; in Chinese)
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Yihao Chen, Qilei Yin, Qi Li, Zhuotao Liu, Ke Xu, Yi Xu, Mingwei Xu, Ziqian Liu, Jianping Wu
The 33rd USENIX Security Symposium (USENIX Security'24)
PDF
Code
Distinguished Paper Award & Internet Defense Prize
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Yuqi Qing, Qilei Yin, Xinhao Deng, Yihao Chen, Zhuotao Liu, Kun Sun, Ke Xu, Jia Zhang, Qi Li
The Network and Distributed System Security Symposium 2024 (NDSS'24)
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Zeyan Li, Junjie Chen, Yihao Chen, Chengyang Luo, Yiwei Zhao, Yongqian Sun, Kaixin Sui, Xiping Wang, Dapeng Liu, Xing Jin, Qi Wang, Dan Pei
The Journal of Systems and Software 203 (2023): 111748
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Weibin Meng, Ying Liu, Federico Zaiter, Shenglin Zhang, Yihao Chen, Yuzhe Zhang, Yichen Zhu, En Wang, Ruizhi Zhang, Shimin Tao, Dian Yang, Rong Zhou, Dan Pei
The 29th International Conference on Computer Communications and Networks (ICCCN'20)
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Weibin Meng, Ying Liu, Yichen Zhu, Shenglin Zhang, Dan Pei, Yuqing Liu, Yihao Chen, Ruizhi Zhang, Shimin Tao, Pei Sun, Rong Zhou
The 28th International Joint Conference on Artificial Intelligence (IJCAI'19)
Education
Ph.D. in Computer Science, Tsinghua University, Beijing, China
Sep. 2021 – Jun. 2026
Thesis: Detection of Internet Inter-domain Routing Anomalies
Co-advisors: Prof. Jianping Wu and Prof. Qi Li
B.Eng. in Computer Science, Tsinghua University, Beijing, China
Sep. 2017 – Jun. 2021
Thesis: BGP Anomaly Detection Based on Network Representation Learning
Advisor: Prof. Qi Li
Honors and Awards
CBI Fellowship, Carnegie Bosch Institute
2026
Outstanding Doctoral Dissertation, Tsinghua University
2026
Outstanding Graduate (Beijing), Beijing Municipal Commission of Education
2026
National Scholarship (Doctorate), Ministry of Education of the P.R. China
2025
Distinguished Paper Award (15/2276, top 0.7%), the 33rd USENIX Security Symposium
2024
Internet Defense Prize Winner (1/2276, top 0.04%), the 33rd USENIX Security Symposium
2024
Best Poster Award (1/52, top 1.9%), the 8th Westlake International Forum on Cyber Security Research
2024
Deng Feng Fund for International Conference Travel, Tsinghua University
2024
Comprehensive Excellence Scholarship (First-Tier), Tsinghua University
2023, 2024
Outstanding Social Service Scholarship, Tsinghua University
2023
Outstanding Graduate, Department of Computer Science and Technology, Tsinghua University
2021
Tsinghua-Sohu R&D Scholarship, Tsinghua University and Sohu, Inc.
2020
Invited Talks
Adversarial Manipulation Risks in Internet Measurement: A Case Study of ASRank
CAIDA AIMS-19 Workshop in San Diego, USA
2026
Understanding the Stealthy BGP Hijacking Risk in the ROV Era
The 60th Asia Pacific Network Information Center Conference (APNIC'60) in Da Nang, Vietnam
2025
Learning with Semantics: Towards a Semantics-Aware Routing Anomaly Detection System
2025 Asia Pacific Regional Internet Conference on Operational Technologies (APRICOT'25) in Petaling Jaya, Malaysia
2025
2025 International Forum for Security Research (InForSec'25) in Beijing, China
2025
The 8th Westlake International Forum on Cyber Security Research in Hangzhou, China
2025
2024 Annual Conference of Chinese Association for Cryptologic Research (ChinaCrypt'24) in Hangzhou, China
2024
The 33rd USENIX Security Symposium (Security'24) in Philadelphia, USA
2024
Selected Projects
matrix-bgpsim: A fast and efficient matrix-based BGP simulator with GPU acceleration
Aug. 2025 – present
Services
Teaching Assistant
Foundations and Frontiers of Cyberspace Security (74120023-0, Tsinghua)
Fall 2022, Fall 2023, Fall 2024, Fall 2025
Core graduate-level CS course (~80 students)
I redesigned grading guidelines beyond regular TA work
Internet Architecture and Security Foundation (74120013-0, Tsinghua)
Fall 2023, Fall 2024, Fall 2025
Graduate-level CS course (~20 students)
I prepared and led one session on BGP routing security beyond regular TA work
Next Generation Internet (00240112-90, Tsinghua)
Spring 2023, Spring 2024
Undergraduate-level CS course (~15 students)
I designed and led one lab session on network measurement beyond regular TA work
Peer Reviewer
Journal Reviewer: IEEE TDSC, ACM TOPS
External Reviewer: USENIX Security 2022/2023, ISOC NDSS 2022/2023/2024/2025/2026, ACM CCS 2022/2023/2024/2025, ACM WWW 2025, IEEE ICNP 2025, ACM ASIACCS 2022/2024
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