There is a class of computer programs, known as expert systems, that aim to mimic human reasoning. The methods and techniques used to build these programs are the outcome of efforts in a field of computer science known as Artificial Intelligence (AI). Expert systems have been built to diagnose disease (Pathfinder is an expert system that assists surgical pathologists with the diagnosis of lymph-node diseases, aid in the design chemical syntheses (Example), prospect for mineral deposits (PROSPECTOR), translate natural languages, and solve complex mathematical problems(MACSYMA).
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