Fellow, American Association for Artificial Intelligence
Member, National Research Council, Commission on Engineering and Technical Systems, Committee on Advanced Space Technologies
Member, American Nuclear Society; Robotics and Remote Systems Division
Member, National Academy of Sciences Peer Review Committee on DOE Environmental Management Technologies, 1994 - 1995.
Member, National Academy of Sciences Committee to Provide Interim Oversight of the DOE Nuclear Weapons Complex, 1988-1989.