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backward chaining

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backward chaining

In AI, a form of reasoning that starts with the conclusion and works backward. The goal is broken into many subgoals or sub-subgoals which can be solved more easily. Known as top-down approach. Contrast with forward chaining.

(algorithm)

backward chaining - An algorithm for proving a goal by recursively breaking it down into sub-goals and trying to prove these until facts are reached. Facts are goals with no sub-goals which are therefore always true. Backward training is the program execution mechanism used by most logic programming language like Prolog.

Opposite: forward chaining.

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FOCL
forward chaining

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logic programming
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For example, PROLOG employs backward chaining, CLIPS employs forward chaining, and MYCIN uses modus ponens and backward chaining Harmon, P.

Toward the development of a second generation computerized ... by Hattori, Kanetoshi / The Journal of Rehabilitation

backward chaining (in addition to forward chaining), which

Pegasystems' PegaRULES Process Commander V4 Makes Smart BPM Simpler ... by Business Wire

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