Eurisko (Gr., I discover) is a program written by Douglas Lenat in RLL-1, a representation language itself written in the Lisp programming language. A sequel to Automated Mathematician, it consists of heuristics, i.e.
Eurisko (Gr., I discover) is a program written by Doug Lenat at MIT in 1978. A sequal to Automated Mathematician, it consists of heuristics, i.e. rules of thumb, including heuristics describing how to use and change its heuristics.
Cyc
Eurisko
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Because EURISKO, unlike AM, has heuristics for changing heuristics, it can explore and transform not only its stock of concepts but its own processing-style. For example, one heuristic asks whether a rule has ever led to any interesting result.
Over five years he developed this new ability in a successor program, EURISKO. EURISKO kept track of the performance of the heuristics it used, and dropped the ones that performed poorly, and modified and improved the better performing ones.
Lenat, Douglas. AM and Eurisko. The computer program 'AM' discovered many principles of arithmetic in the course of an evolutionary search.
 See also: Heuristics, Knowledge, Artificial intelligence, Automated Mathematician, Cyc
  
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