![]() Optimality : When several solutions exist for a given problem, does the heuristic guarantee that the best solution will be found? Is it actually necessary to find the best solution?.The trade-off criteria for deciding whether to use a heuristic for solving a given problem include the following: Trade-Off Criteria for using Heuristic Function The objective of a heuristic is to produce a solution in a reasonable time frame that is good enough for solving the problem at hand.Ģ.The problem state description is mapped to the measure of desirability.The input is the “search state” whereas the output is the “tangible representation of the state”. It is generally denoted by “h(n)” where it stands for estimated cost of the cheapest path from current state to goal state.Heuristic function is also simply called as a “Heuristic”.Basically, it is the cost calculated while going from the current state to the goal state.It is a way to inform the search about the direction to a goal. A Heuristic function is an evaluation function that estimates the cost of getting from one place to another.
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