Algorithms and Data Structures: 11th International - download pdf or read online

By Mohammad Ali Abam, Paz Carmi, Mohammad Farshi (auth.), Frank Dehne, Marina Gavrilova, Jörg-Rüdiger Sack, Csaba D. Tóth (eds.)

ISBN-10: 3642033660

ISBN-13: 9783642033667

This booklet constitutes the refereed lawsuits of the eleventh Algorithms and knowledge constructions Symposium, WADS 2009, held in Banff, Canada, in August 2009.

The Algorithms and information buildings Symposium - WADS (formerly "Workshop on Algorithms and information Structures") is meant as a discussion board for researchers within the zone of layout and research of algorithms and information constructions. The forty nine revised complete papers offered during this quantity have been rigorously reviewed and chosen from 126 submissions. The papers current unique examine on algorithms and knowledge buildings in all components, together with bioinformatics, combinatorics, computational geometry, databases, images, and parallel and disbursed computing.

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Extra resources for Algorithms and Data Structures: 11th International Symposium, WADS 2009, Banff, Canada, August 21-23, 2009. Proceedings

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On embedding an outer-planar graph in a point set. Computational Geometry: Theory and Applications 23(3), 303–312 (2002) 4. : Optimal algorithms to embed trees in a point set. Journal of Graph Algorithms and Applications 1(2), 1–15 (1997) 5. : Linear time automorphism algorithms for trees, interval graphs, and planar graphs. SIAM Journal on Computing 10(1), 203–225 (1981) 6. : Graphs with prescribed degree of vertices. Mat. Lapok 11, 264–274 (1960) 7. : One strike against the min-max degree triangulation problem.

Z. ) COCOON 1995. LNCS, vol. 959, pp. 21–30. Springer, Heidelberg (1995) 12. : Planarity for clustered graphs. G. ) ESA 1995. LNCS, vol. 979, pp. 213–226. Springer, Heidelberg (1995) 13. : C-planarity of extrovert clustered graphs. S. ) GD 2005. LNCS, vol. 3843, pp. 211–222. Springer, Heidelberg (2006) 14. : Advances in c-planarity testing of clustered graphs. G. ) GD 2002. LNCS, vol. 2528, pp. 220–235. Springer, Heidelberg (2002) 15. : Clustered planarity: small clusters in Eulerian graphs. , Quan, W.

The objective is to find a tree of minimum cost that spans all receivers and the source, such that the path from the source to any given receiver can support the QoS level requested by the said receiver. The problem has been studied from the point of view of approximation algorithms. In this paper we introduce and address the on-line variant of the problem, which models the situation in which receivers join the multicast group dynamically. Our main technical result is a tight bound on the competitive ratio of Θ min b log kb , k (when k > b), and Θ(k) (when k ≤ b), where b is the total number of different priority values and k is the total number of receivers.

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Algorithms and Data Structures: 11th International Symposium, WADS 2009, Banff, Canada, August 21-23, 2009. Proceedings by Mohammad Ali Abam, Paz Carmi, Mohammad Farshi (auth.), Frank Dehne, Marina Gavrilova, Jörg-Rüdiger Sack, Csaba D. Tóth (eds.)


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