Algorithm Theory — SWAT'98: 6th Scandinavian Workshop on by Andrew V. Goldberg (auth.), Stefan Arnborg, Lars Ivansson

By Andrew V. Goldberg (auth.), Stefan Arnborg, Lars Ivansson (eds.)

This publication constitutes the refereed lawsuits of the sixth Scandinavian Workshop on set of rules idea, SWAT'98, held in Stockholm, Sweden, in July 1998.
The quantity provides 28 revised complete papers chosen from fifty six submissions; additionally integrated are 3 invited contributions. The papers current unique examine on algorithms and knowledge buildings in numerous parts together with computational geometry, parallel and disbursed platforms, graph conception, approximation, computational biology, queueing, Voronoi diagrams, and combinatorics in general.

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Extra resources for Algorithm Theory — SWAT'98: 6th Scandinavian Workshop on Algorithm Theory Stockholm, Sweden, July 8–10, 1998 Proceedings

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20. J. Plesnik, “A heuristic for the p-center problem in graphs”, Discrete Applied Mathematics, Vol 17:263–268, (1987) 25, 25, 25, 28 21. R. Ravi, M. X. Goemans, “The constrained minimum spanning tree problem”, SWAT 1996, 66-75. 24 22. D. Serra and V. Marianov, “The P-median problem in a changing network: The case of Barcelona”, paper presented at the International Symposium in Locational Decisions VII, (ISOLDE), Edmonton, Canada, (1996). 27 23. C. Toregas, R. Swain, C. Revelle and L. Bergman, “The location of emergency service facilities”, Operations Research, Vol 19:1363–1373, (1971).

Hence if v is shifted to v by the algorithm then c(v ) ≤ c(xv ). Summing over all the nodes in S we get that the cost of the nodes in S is a lower bound on the optimal cost. Acknowledgments: We thank the anonymous referees for useful comments. References 1. J. Bar-Ilan, G. Kortsarz and D. Peleg, “How to allocate network centers”, J. Algorithms, 15:385–415, (1993). 25 2. R. Bhatia, S. Guha, S. Khuller and Y. J. Sussmann, “Facility location with dynamic distance functions”, Technical Report CS-TR-3834, UMIACS-TR-97-70, Univ of Maryland (1997).

13, 13 8. M. Lanthier, A. -R. Sack, “Approximating Weighted Shortest Paths on Polyhedral Surfaces”, Proceedings of the 13th Annual ACM Symposium on Computational Geometry, 1997, pp. 274-283. 12, 13, 13, 13, 13, 13 9. M. D. Thesis in progress, School of Computer Science, Carleton University, Ottawa, Canada, 1998. 13, 16 10. C. Mata and J. Mitchell, “A New Algorithm for Computing Shortest Paths in Weighted Planar Subdivisions”, Proceedings of the 13th Annual ACM Symposium on Computational Geometry, 1997, pp.

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