Algorithms and Computation: 25th International Symposium, by Hee-Kap Ahn, Chan-Su Shin PDF

By Hee-Kap Ahn, Chan-Su Shin

ISBN-10: 3319130749

ISBN-13: 9783319130743

ISBN-10: 3319130757

ISBN-13: 9783319130750

This booklet constitutes the refereed complaints of the twenty fifth foreign Symposium on Algorithms and Computation, ISAAC 2014, held in Jeonju, Korea, in December 2014.
The 60 revised complete papers provided including 2 invited talks have been conscientiously reviewed and chosen from 171 submissions for inclusion within the ebook. the point of interest of the amount in at the following subject matters: computational geometry, combinatorial optimization, graph algorithms: enumeration, matching and project, info constructions and algorithms, fixed-parameter tractable algorithms, scheduling algorithms, computational complexity, computational complexity, approximation algorithms, graph concept and algorithms, on-line and approximation algorithms, and community and scheduling algorithms.

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Extra resources for Algorithms and Computation: 25th International Symposium, ISAAC 2014, Jeonju, Korea, December 15-17, 2014, Proceedings

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For non-point sites, such as line segments, only O(k 2 n log n)-time algorithms have been available based on the iterative construction [17] and plane sweep [19]. Other recent works on order-k Voronoi diagrams of point-sites in generalized metrics include the L1 /L∞ metric [16], the city metric [8], and the geodesic order-k Voronoi diagram [15]. In abstract Voronoi diagrams [10], the system of bisecting curves satisfies axioms (A1)–(A5), given below, for any S ⊆ S. , [10]) are directly applicable.

299–309. Springer, Heidelberg (2000) 23. : A simple linear time (1 + )-approximation algorithm for k-means clustering in any dimensions. In: Proc. of the 45th IEEE Symposium on Foundations of Computer Science (FOCS), pp. 454–462 (2004) 24. : The planar k-means problem is NP-hard. Theoretical Computer Science 442, 13–21 (2012) 25. : Linear-time algorithms for linear programming in R3 and related problems. SIAM Journal on Computing 12(4), 759–776 (1983) 26. : Linear programming in linear time when the dimension is fixed.

It follows that local sequences and radial orderings are incomparable in the sense that neither can be computed from the other in general. Figure 2(b) is obtained from Figure 2(a) by cyclically shifting the labels 2, 3, . . , n once. Each such cyclic shift in this example preserves the undirected radial system U , and hence |T (U )| ≥ n − 1. We show in what follows that this is the worst case in the sense that |T (U )| ≤ n − 1 for all radial systems U . Figure 3(a-b) shows another example of two point sets with different order types but the same radial system U .

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Algorithms and Computation: 25th International Symposium, ISAAC 2014, Jeonju, Korea, December 15-17, 2014, Proceedings by Hee-Kap Ahn, Chan-Su Shin

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