Expected solution quality

  • Authors:
  • John Bresina;Mark Drummond;Keith Swanson

  • Affiliations:
  • Recom Technologies and NASA Ames Research Center, Moffett Field, CA;Recom Technologies and NASA Ames Research Center, Moffett Field, CA;NASA Ames Research Center, Moffett Field, CA

  • Venue:
  • IJCAI'95 Proceedings of the 14th international joint conference on Artificial intelligence - Volume 2
  • Year:
  • 1995

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Abstract

This paper presents the Expected Solution Quality (ESQ) method for statistically characterizing scheduling problems and the performance of schedulers. The ESQ method is demonstrated by applying it to a practical telescope scheduling problem. The method addresses the important and difficult issue of how to meaningfully evaluate the performance of a scheduler on a constrained optimization problem for which an optimal solution is not known. At the heart of ESQ is a Monte Carlo algor ithm that estimates a problem's probability density function with respect to solution quality This "quality density function" provides a useful characterization of a scheduling problem, and it also provides a background against which scheduler performance can be meaningfully evaluated. ESQ provides a unitless measure that combines both schedule quality and the amount of time to generate a schedule.