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» The Complexity of the Approximation of the Bandwidth Problem
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COCOON
2006
Springer
13 years 11 months ago
Approximating Min-Max (Regret) Versions of Some Polynomial Problems
Abstract. While the complexity of min-max and min-max regret versions of most classical combinatorial optimization problems has been thoroughly investigated, there are very few stu...
Hassene Aissi, Cristina Bazgan, Daniel Vanderpoote...
TSP
2008
115views more  TSP 2008»
13 years 7 months ago
Approximation Bounds for Semidefinite Relaxation of Max-Min-Fair Multicast Transmit Beamforming Problem
Consider a downlink multicast scenario where a base station equipped with multiple antennas wishes to simultaneously broadcast a number of signals to some given groups of users ove...
Tsung-Hui Chang, Zhi-Quan Luo, Chong-Yung Chi
NCA
2009
IEEE
14 years 2 months ago
A Distributed Algorithm for Web Content Replication
—Web caching and replication techniques increase accessibility of Web contents and reduce Internet bandwidth requirements. In this paper, we are considering the replica placement...
Sharrukh Zaman, Daniel Grosu
ALGORITHMICA
2010
141views more  ALGORITHMICA 2010»
13 years 7 months ago
Parameterized Complexity and Local Search Approaches for the Stable Marriage Problem with Ties
Abstract. We consider the variant of the classical Stable Marriage problem where preference lists can be incomplete and may contain ties. In such a setting, finding a stable matchi...
Dániel Marx, Ildikó Schlotter
JAT
2010
171views more  JAT 2010»
13 years 2 months ago
Chebyshev approximation of the null function by an affine combination of complex exponential functions
We describe the theoretical solution of an approximation problem that uses a finite weighted sum of complex exponential functions. The problem arises in an optimization model for t...
Paul Armand, Joël Benoist, Elsa Bousquet