• Android Repackaged Malware Detection and Identification via Calling Graph. Baidu US, Sunnyvale, CA. Feb. 7, 2017
• Android Repackaged Malware Detection and Identification via Calling Graph. Huawei US, Sunnyvale, CA. Jan. 13, 2017
• Human-centric Smart Home. Clarkson University, NY.  Oct. 21, 2016
• Calling Network-Software Structure Modeling and Application. 2nd International Workshop on Trustworthy Software Systems (with IEEE TrustCom-16). Aug. 27, 2016
• 智能电网的动态电价安全. 2016中国互联网安全大会. Aug. 22, 2016
• 软件抄袭自动检测. 百度公司. Mar. 16, 2016
• Reviving Sequential Program Birthmarking for Multithreaded Software Plagiarism Detection. Institute of Information Engineering, Chinese Academy of Sciences. Jan. 16, 2016
• Calling Network: A Software Dynamic Behavior Model. Carnegie Mellon University. Oct. 30, 2015
• Reviving Sequential Program Birthmarking for Multithreaded Software Plagiarism Detection. Pennsylvania State University. Oct. 28, 2015

• 2017 ACM International Conference on Architectural Support for Programming Languages and Operating Systems (ASPLOS), Xi'an, China. Local Chair
• 2016 IEEE/ACM International Conference on Automated Software Engineering (ASE) Workshop on Specification, Comprehension, Testing and Debugging of Concurrent Programs. Co-Chair.
• 2016 EAI International Conference on Mobile Multimedia Communications, June 18¬20, 2016, Xi'an, China. Session Chair.
• 2015 IEEE International Conference on Smart City. Dec. 19-21, 2015, Chengdu, China. Tutorial Chair
• 2015 International Workshop on Trustworthy Software Systems (with IEEE TrustCom-15). August 20-22, 2015, Helsinki, Finland. Co-Chair
• 14th IEEE International Conference on Computer and Information Technology (CIT 2014). September 11-13, 2014, Xi'an, Shaanxi, China. Vice Program Co-Chairs.
• 13th Asia Pacific Next Generation (APNG) Camp. 21-25 February, 2011, Hong Kong, China. Co-chair. 
• 12th Asia Pacific Next Generation (APNG) Camp. July 12-15, 2010, Hiroshima, Japan. Fellowship Committee Chair
• 11th Asia Pacific Next Generation (APNG) Camp. July 20-22, 2009, Kuala Lumpur, Malaysia. Internet Technology Workgroup Chair. 

 Program Committee 

• 全国软件与应用学术会议. Nov. 3-4, 2016, Kunmin, China
• 8th International Conference on Security of Information and Networks (SIN). September 8-10, 2015, Sochi, Russia.
• 27th International Conference on Software Engineering and Knowledge Engineering (SEKE). July 6 - 8, 2015, Pittsburgh, USA.
• The 11th IEEE/IFIP International Conference on Embedded and Ubiquitous Computing (EUC-13), November 13-15, 2013, Zhangjiajie, China

Reviewer of International Journals

• ACM Computing Surveys, since 2016
• IEEE Transactions on Information Forensics and Security, since 2015
• IEEE Transactions on Smart Grids, since 2014
• Pattern Analysis and Applications, since 2014
• IEEE System Journal, since 2014
• IEEE Transactions on Emerging Topics in Computing, since 2013.
• IEEE Transactions on Systems, Man, and Cybernetics--Part C: Applications and Reviews, since 2012
• IET Information Security, , since 2012
• IEEE Communications Letters, since 2011
• KSII Transactions on Internet and Information Systems, since 2010