Approximation algorithms for facility location problems (extended abstract)
STOC '97 Proceedings of the twenty-ninth annual ACM symposium on Theory of computing
Greedy strikes back: improved facility location algorithms
Journal of Algorithms
Analysis of a local search heuristic for facility location problems
Journal of Algorithms
Local search heuristic for k-median and facility location problems
STOC '01 Proceedings of the thirty-third annual ACM symposium on Theory of computing
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APPROX '02 Proceedings of the 5th International Workshop on Approximation Algorithms for Combinatorial Optimization
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FOCS '99 Proceedings of the 40th Annual Symposium on Foundations of Computer Science
Improved Approximation Algorithms for the Uncapacitated Facility Location Problem
SIAM Journal on Computing
Facility location with Service Installation Costs
SODA '04 Proceedings of the fifteenth annual ACM-SIAM symposium on Discrete algorithms
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Proceedings of the 2004 joint workshop on Foundations of mobile computing
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SODA '05 Proceedings of the sixteenth annual ACM-SIAM symposium on Discrete algorithms
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Proceedings of the Fourth ACM International Conference on Distributed Event-Based Systems
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SIAM Journal on Discrete Mathematics
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Proceedings of the twenty-third annual ACM-SIAM symposium on Discrete Algorithms
Minimizing Energies with Hierarchical Costs
International Journal of Computer Vision
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We consider the facility location problem with hierarchical facility costs, and give a (4.236 + ε)-approximation algorithm using local search. The hierarchical facility location problem models multilevel service installation costs. Shmoys, Swamy and Levi [13] gave an approximation algorithm for a two-level version of the problem. Here we consider a multilevel problem, and give a constant factor approximation algorithm, independent of the number of levels, for the case of identical costs on all facilities.