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Heuristic Functions
Definition – Heuristic Function
Let (S, s 0 , succ , Sol) be a search scheme. A heuristic function is a function h : S → N 0 ∪ { ∞ } from states into the natural numbers including 0 and the ∞ symbol. Heuristic functions , or heuristics , are efficiently computable functions that estimate a state’s “solution distance”.