Reviewer, Computers and Security Journal Elsevier 2014.
Guest Editor, Journal of Internet Technology, Special Issue on Ubiquitious Internet and Software Technologies, 2nd Quarter 2011.
Program Committee Member, IEEE International Symposium on Multimedia 2010 (ISM’10), Taichung, Taiwan, 15 – 17 Dec 2010.
Program Committee Member, The 8th International Conference on Advances in Mobile Computing & Multimedia (MoMM 2010), Paris, France, 8-10 Nov, 2010.
Program Vice-chair, The 4th International Conference on Ubiquitous Information Technologies & Applications, (ICUT 2009), Fukuoka, Japan, 20-22 Dec, 2009.
Workshops Chair, IEEE/ IFIP International Conference on Embedded and Ubiquitious Computing (EUC-09), Vancouver, Canada, 29-31 Aug 2009.
Editorial Board, Multimodality in Mobile Computing and Mobile Devices: Methods for Adaptable Usability, IGI Global, a book edited by Dr. Stan Kurkovsky, 2009.
Program Committee Member, IEEE International Symposium on Multimedia 2008 (ISM’08), Berkeley, California, USA, 15 – 17 Dec 2008.
Program Vice-chair, International Conference on Intelligent Pervasive Computing (IPC-08), Sydney, Australia, 10 – 12 Dec 2008.
Reviewer, Third International Multi-Conference on Computing in the Global Information Technology (ICCGI2008), Athens, Greece, 27 July – 1 Aug 2008.
Publicity Chair, Workshop on Urban Networks and Applications (UNA�08), Held in conjunction with the 13th IEEE Asia-Pacific Computer Systems Architecture Conference, Lakeshore Hotel, Hsinchu, Taiwan, 04 – 06 Aug 2008.
Reviewer, IEEE Multimedia Journal, Feb 2008.
Publicity Co-chair, IEEE International Symposium on Multimedia 2007 (ISM’07), Taichung, Taiwan, 10 – 12 Dec 2007.
Session Chair on Multimedia Networking and Applications, IEEE International Workshop on Advances in Multimedia (AIM’07), Taichung, Taiwan, 12 Dec 2007.
Session Chair on Mobile Multimedia Systems and Visualization, IEEE International Symposium on Multimedia 2007 (ISM’07), Taichung, Taiwan, 11 Dec 2007.
Session Chair on Image and Video Processing, IEEE International Symposium on Multimedia 2007 (ISM’07), Taichung, Taiwan, 10 Dec 2007.
Program Committee Member, International Workshop on Parallel and Distributed Multimedia Computing (ParDMCom-07). Held in conjunction with International Symposium on Parallel and Distributed Processing and Application (ISPA 2007), Niagara Falls, Ontario, Canada, 28 Aug – 1 Sept 2007.
Session Chair on Parallel Computing, International Conference on Computers Communications and Control (ICCCC2006), Oreada, Romania, 01 – 03 June 2006.