Combining the Min-Conflicts and Look-Forward Heuristics to E.ectively Solve a Set of Hard University Timetabling Problems

  • Authors:
  • Vincent Tam;David Ting

  • Affiliations:
  • -;-

  • Venue:
  • ICTAI '03 Proceedings of the 15th IEEE International Conference on Tools with Artificial Intelligence
  • Year:
  • 2003

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Abstract

University timetabling problems (UTPs) represent a class of challenging, high-dimensional and multi-objectives combinatorial optimization problems that are commonly solved by constructive search, local search methods or their hybrids. In this paper, we proposed to combine the min-conflicts and look-forward heuristics used in local search methods to effectively solve general university timetabling problems. Our combined heuristics when augmented with the k-reset operator, and appropriate heuristic variable ordering strategy achieved impressive results on a set of challenging UTPs obtained from an international timetabling competition. A preliminary analysis of the results was given. More importantly, our search proposal shed light on effectively solving other complex or large-scale scheduling problems.