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» On Covering Problems of Rado
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84
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IPL
2011
112views more  IPL 2011»
14 years 4 months ago
Improved approximation algorithms for minimum AND-circuits problem via k-set cover
Arpe and Manthey [Algorithmica’09] recently studied the minimum ANDcircuit problem, which is a circuit minimization problem, and showed some results including approximation algo...
Hiroki Morizumi
64
Voted
FSTTCS
2009
Springer
15 years 4 months ago
The Covering and Boundedness Problems for Branching Vector Addition Systems
The covering and boundedness problems for branching vector addition systems are shown complete for doubly-exponential time.
Stéphane Demri, Marcin Jurdzinski, Oded Lac...
ICALP
2004
Springer
15 years 2 months ago
The Minimum-Entropy Set Cover Problem
We study graph orientations that minimize the entropy of the in-degree sequence. The problem of finding such an orientation is an interesting special case of the minimum entropy ...
Eran Halperin, Richard M. Karp
89
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ICDT
2005
ACM
128views Database» more  ICDT 2005»
15 years 3 months ago
The Pipelined Set Cover Problem
Abstract. A classical problem in query optimization is to find the optimal ordering of a set of possibly correlated selections. We provide an ion of this problem as a generalizati...
Kamesh Munagala, Shivnath Babu, Rajeev Motwani, Je...
COCOON
2005
Springer
15 years 3 months ago
A PTAS for a Disc Covering Problem Using Width-Bounded Separators
In this paper, we study the following disc covering problem: Given a set of discs of various radii on the plane, find a subset of discs to maximize the area covered by exactly on...
Zhixiang Chen, Bin Fu, Yong Tang, Binhai Zhu