Evaluation function

An evaluation function, also known as heuristic evaluation function or static evaluation function is used by game-playing programs to estimate the value or goodness of a position. The evaluation function is typically designed to be fast and accuracy isn't a concern (therefore heuristic); the function looks only at the current position and doesn't explore possible moves (therefore static).

One popular strategy for constructing evaluation functions is as a weighted sum of various factors that are thought to influence the value of a position. For instance, an evaluation function for chess might take the form

  c₁ * material + c₂ * mobility + c₃ * king safety + c₄ * center control + ...

External references

http://alumni.imsa.edu/~stendahl/comp/txt/gnuchess.txt (http://alumni.imsa.edu/~stendahl/comp/txt/gnuchess.txt) - Heuristic function used by GNU Chess

		Evaluation function
		An evaluation function, also known as heuristic evaluation function or static evaluation function is used by game-playing programs to estimate the value or goodness of a position. The evaluation function is typically designed to be fast and accuracy isn't a concern (therefore heuristic); the function looks only at the current position and doesn't explore possible moves (therefore static). One popular strategy for constructing evaluation functions is as a weighted sum of various factors that are thought to influence the value of a position. For instance, an evaluation function for chess might take the form c₁ * material + c₂ * mobility + c₃ * king safety + c₄ * center control + ... See also Computer chess Minimax algorithm External references http://alumni.imsa.edu/~stendahl/comp/txt/gnuchess.txt (http://alumni.imsa.edu/~stendahl/comp/txt/gnuchess.txt) - Heuristic function used by GNU Chess
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Evaluation function

Evaluation function

See also

External references