Keith Clark

Who is Keith Clark?

Keith Leonard Clark is a Professor of Computer Science at Imperial College London, England. He has lectured in both mathematics and computer science.

Clark earnt a Ph.D. in 1980 from Queen Mary, University of London with thesis titled Predicate logic as a computational formalism. Since 1979, Keith Clark has had an academic position in the Department of Computing, Imperial College London, where he has been Professor of Computational Logic since 1987. Between 1987 and 1995, he was also Visiting Professor at Uppsala University. He is currently a Visiting Professor at BTH, and at the University of Queensland. In 1980, he co-founded an Imperial College spin-off company, Logic Programming Associates, to develop and market Prolog systems for micro-computers and to provide consultancy on expert systems and rule based applications.

Clark's key contributions have been in the field of logic programming. His 1978 paper on negation as failure was arguably the first formalisation of a non-monotonic logic. His 1981 paper on a relational language for parallel programming introduced concurrent logic programming.

More recently, Clark has been working on the April and Go! programming languages and their application to agent programming.