Multilevel Approaches applied to the Capacitated Clustering Problem

D. Rodney, A. Soper and C. Walshaw


This paper presents two multilevel refinement algorithms for the capacitated clustering problem. Multilevel refinement is a collaborative technique capable of significantly aiding the solution process for optimisation problems. The central methodologies of the technique are filtering solutions from the search space and reducing the level of problem detail to be considered at each level of the solution process. The first multilevel algorithm uses a simple tabu search while the other executes a standard local search procedure. Both algorithms demonstrate ehat the multilevel technique is capable of aiding the solution process for this combinatorial optimisation problem.

Key words. Multilevel refinement, Clustering, Tabu search, P-median, Coarsening, Segment transfers.

Wed Aug 27 16:17:18 BST 2008