Abstract
We address the question of how one evaluates the usefulness of a heuristic program on a particular input. If theoretical tools do not allow us to decide for every instance whether a particular heuristic is fast enough, might we at least write a simple, fast companion program that makes this decision on some inputs of interest? We call such a companion program a timer for the heuristic. Timers are related to program checkers, as defined by Blum (1993), in the following sense: Checkers are companion programs that check the correctness of the output produced by (unproven but bounded‐time) programs on particular instances; timers, on the other hand, are companion programs that attempt to bound the running time on particular instances of correct programs whose running times have not been fully analyzed. This paper provides a family of definitions that formalize the notion of a timer and some preliminary results that demonstrate the utility of these definitions.
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Cowen, L., Feigenbaum, J. & Kannan, S. A formal framework for evaluating heuristic programs. Annals of Mathematics and Artificial Intelligence 22, 193–206 (1998). https://doi.org/10.1023/A:1018950418415
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DOI: https://doi.org/10.1023/A:1018950418415