Kexin Pei     
Ph.D. Student
Department of Computer Science
Columbia University       
kpei AT cs DOT columbia DOT edu

About Me
I am a first year Ph.D. student at Department of Computer Science, Columbia University. I am co-advised by Prof. Suman Jana and Prof. Junfeng Yang. Before coming to Columbia, I was a research-based master student at Department of Computer Science, Purdue University, under the direction of Prof. Dongyan Xu, Prof. Xiangyu Zhang and Prof. Luo Si. Prior to Purdue, I worked at the Database group, HKBU, advised by Prof. Haibo Hu and Prof. Jianliang Xu.
I am primarily interested in machine learning with a focus on its intersection with security, operating system, and software engineering.

Education
  • Ph.D., Department of Computer Science, Columbia University (2016 - )
  • M.S., Department of Computer Science, Purdue University (2014 - 2016)
  • B.S., Department of Computer Science, Hong Kong Baptist University (2009 - 2014)

Publication
  • Suphannee Sivakorn, George Argyros, Kexin Pei, Angelos D. Keromytis, Suman Jana. "HVLearn: Automated Black-box Analysis of Hostname Verification in SSL/TLS Implementations", in Proceedings of the 38th IEEE Symposium on Security and Privacy (Oakland S&P 2017), SAN JOSE, CA, USA, December 2016 (13%)[pdf]
  • Kexin Pei, Zhongshu Gu, Brendan Saltaformaggio, Shiqing Ma, Fei Wang, Zhiwei Zhang, Luo Si, Xiangyu Zhang, Dongyan Xu. "HERCULE: Attack Story Reconstruction via Community Discovery on Correlated Log Graph", in Proceedings of the 32nd Annual Computer Security Applications Conference (ACSAC 2016), Los Angelos, LA, USA, December 2016 (22%)[pdf]
  • Zhaogui Xu, Xiangyu Zhang, Lin Chen, Kexin Pei, Baowen Xu. "Python Probabilistic Type Inference with Natural Language Support", in Proceedings of the 24th ACM SIGSOFT Symposium on the Foundations of Software Engineering (FSE 2016), Seattle, WA, USA, November 2016, Distinguished Artifact Award (27%). [pdf]
  • Zhongshu Gu, Kexin Pei, Qifan Wang, Luo Si, Xiangyu Zhang, Dongyan Xu. "LEAPS: Detecting Camouflaged Attacks with Statistical Learning Guided by Program Analysis", in Proceedings of the 45th IEEE/IFIP International Conference on Dependable Systems and Networks (DSN 2015), Rio de Janeiro, Brazil, June 2015 (21%). [pdf]
  • Haibo Hu, Jianliang Xu, Xizhong Xu, Kexin Pei, Byron Choi, Shuigeng Zhou. "Private Search on Key-Value Stores with Hierarchical Indexes", in Proceedings of the 30th IEEE International Conference on Data Engineering (ICDE 2014), Chicago, IL, USA, April 2014 (20%). [pdf]

Talks
  • "HERCULE: Attack Story Reconstruction via Community Discovery on Correlated Log Graph". ACSAC 2016.
  • "LEAPS: Detecting Camouflaged Attacks with Statistical Learning Guided by Program Analysis". CERIAS Security Seminar Series. 

Professional Activities
  • External reviewer. The 26th USENIX Security Symposium (USENIX 2017).
  • External reviewer. The 46th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN 2016).
  • External reviewer. The 19th International Symposium on Research in Attacks, Intrusions, and Defenses (RAID 2016).
  • External reviewer. ACM Transactions on Autonomous and Adaptive Systems (TAAS).

Personal
  • Piano: love playing Joe Hisaishi's music.
  • Clarinet: have been playing clarinet in HKBU and SUNY Albany symphony orchestra for three years and one semester.
  • Basketball: Big fan of T-Mac.
  • Chinese Calligraphy: love clerical script.
You are very welcome to visit my wife Xuechunzi Bai's homepage.