Organization Cognitive Science Society

IEEE (Fellow ∙ 1988)

American Association of Artificial Intelligence (Fellow ∙ 1990)

National Academy of Engineering (1995)

Spanish Academy of Engineering (Corresponding Member ∙ 2002)

American Academy of Arts and Sciences (2012)

University of California, Los Angeles

British Computer Society (Fellow, 2004)

ACM (Fellow, 2009)

European Association for Artificial Intelligence (Fellow, 1998)

American Association for Artificial Intelligence (Fellow, 1991)

Association for Computational Linguistics (Member)

Society for the Study of AI and Simulation of Behaviour (Member)

British Society for the Philosophy of Science (Member)

Aristotelean Society (Member)