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COLOGNETWENTE
2008
9 years 7 months ago
A Simple 3-Approximation of Minimum Manhattan Networks
Given a set P of n points in the plane, a Manhattan network of P is a network that contains a rectilinear shortest path between every pair of points of P. A minimum Manhattan netw...
Bernhard Fuchs, Anna Schulze
CCCG
2008
9 years 7 months ago
Application of computational geometry to network p-center location problems
In this paper we showed that a p( 2)-center location problem in general networks can be transformed to the well known Klee's measure problem [5]. This resulted in an improved...
Qiaosheng Shi, Binay K. Bhattacharya
CCCG
2008
9 years 7 months ago
Smallest enclosing circle centered on a query line segment
Given a set of n points P = {p1, p2, . . . , pn} in the plane, we show how to preprocess P such that for any query line segment L we can report in O(log n) time the smallest enclo...
Prosenjit Bose, Stefan Langerman, Sasanka Roy
CCCG
2010
9 years 7 months ago
New variations of the reverse facility location problem
In this paper we consider a natural extension of the socalled reverse facility location problem which was introduced by Cabello et al. [3]. Given a set of n users and a set of m f...
Bhaswar B. Bhattacharya, Subhas C. Nandy
DGCI
2006
Springer
9 years 7 months ago
Fast Filling Operations Used in the Reconstruction of Convex Lattice Sets
Filling operations are procedures which are used in Discrete Tomography for the reconstruction of lattice sets having some convexity constraints. In [1], an algorithm which perform...
Sara Brunetti, Alain Daurat, Attila Kuba
CEC
2008
IEEE
9 years 7 months ago
Directed trees: A powerful representation for sorting and ordering problems
We present a simple framework for dealing with search spaces consisting of permutations. To demonstrate its usefulness, we build upon it a simple (1 + 1)-evolutionary algorithm fo...
Benjamin Doerr, Edda Happ
CSL
1995
Springer
9 years 9 months ago
Improved Decision Procedures for the Modal Logics K, T, and S4
We propose so called contraction free sequent calculi for the three prominent modal logics K, T, and S4. Deduction search in these calculi is shown to provide more efficient decisi...
Jörg Hudelmaier
FPL
2004
Springer
115views Hardware» more  FPL 2004»
9 years 9 months ago
Optimal Routing-Conscious Dynamic Placement for Reconfigurable Devices
We describe algorithmic results for two crucial aspects of allocating resources on computational hardware devices with partial reconfigurability. By using methods from the field of...
Ali Ahmadinia, Christophe Bobda, Sándor P. ...
FOCS
2004
IEEE
9 years 9 months ago
Shuffling by Semi-Random Transpositions
In the cyclic-to-random shuffle, we are given n cards arranged in a circle. At step k, we exchange the k'th card along the circle with a uniformly chosen random card. The pro...
Elchanan Mossel, Yuval Peres, Alistair Sinclair
FOCS
2004
IEEE
9 years 9 months ago
No Sorting? Better Searching!
Questions about order versus disorder in systems and models have been fascinating scientists over the years. In Computer Science, order is intimately related to sorting, commonly ...
Gianni Franceschini, Roberto Grossi
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