Choosing Which Rules To Evaluate
Production systems may also differ in the final selection of production rules to execute, or fire . The collection of rules resulting from the previous matching algorithm is called the conflict set, and the selection process is also called a conflict resolution strategy .
Here again, such strategies may vary from the simple—use the order in which production rules were written; assign weights or priorities to production rules and sort the conflict set accordingly—to the complex—sort the conflict set according to the times at which production rules were previously fired; or according to the extent of the modifications induced by their RHSs. Whichever conflict resolution strategy is implemented, the method is indeed crucial to the efficiency and correctness of the production system.
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Famous quotes containing the words choosing, rules and/or evaluate:
“Although I’ve risen! and my back is bold.
My tongue is brainy, choosing from among
Care, rage, surprise, despair, and choosing care.
I’m semi-splendid within what I’ve defended.”
—Gwendolyn Brooks (b. 1917)
“The duce of any other rule have I to govern myself by in this affair—and if I had one ... I would twist it and tear it to pieces, and throw it into the fire when I had done—Am I warm? I am, and the cause demands it—a pretty story! is a man to follow rules—or rules to follow him?”
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“As one who knows many things, the humanist loves the world precisely because of its manifold nature and the opposing forces in it do not frighten him. Nothing is further from him than the desire to resolve such conflicts ... and this is precisely the mark of the humanist spirit: not to evaluate contrasts as hostility but to seek human unity, that superior unity, for all that appears irreconcilable.”
—Stefan Zweig (18811942)