What is an admissible heuristic?
An example of an AI chatbot conversation about admissible heuristics in search algorithms.
Can you explain what an admissible heuristic is?
Sure! An admissible heuristic is a function used in search algorithms that never overestimates the cost to reach the goal.
Why is it important for a heuristic to be admissible?
It's important because it ensures that the search algorithm, like A*, finds the optimal solution by guiding the search efficiently.
Can you give me an example of an admissible heuristic?
Certainly! In a pathfinding problem, the straight-line distance to the goal is an admissible heuristic because it never exceeds the actual distance.
Are there any heuristics that are not admissible?
Yes, a heuristic that overestimates the cost to reach the goal is not admissible. For example, if it predicts a cost greater than the actual cost.
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