Association for Computing Machinery (ACM), 1990 ~
ACM Special Interest Group in Mobile Computing (SIGMOBILE), 1998 ~ , (Executive Committee, 1998 ~ 2001)
ACM Special Interest Group on Algorithms and Computation Theory (SIGACT), 1993 ~ 1997
Institute of Electrical and Electronics Engineers (IEEE), 1996 ~
IEEE Computer Society, 1990 ~
IEEE Technical Committee on Parallel Processing (TCPP), 1992 ~ , (Executive Committee, 1997 ~ )
IEEE Technical Committee on Communications (TCCC), 2000 ~ , (Executive Committee, 2000 ~ )
IEEE Technical Committee on Supercomputing, 1995 ~
New York Academy of Sciences, 1991 ~
Sigma Xi - the Scientific Research Society, 1990 ~