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» Rounding algorithms for covering problems
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ESA
2006
Springer
134views Algorithms» more  ESA 2006»
14 years 11 days ago
A Unified Approach to Approximating Partial Covering Problems
An instance of the generalized partial cover problem consists of a ground set U and a family of subsets S 2U . Each element e U is associated with a profit p(e), whereas each su...
Jochen Könemann, Ojas Parekh, Danny Segev
GECCO
2007
Springer
193views Optimization» more  GECCO 2007»
14 years 2 months ago
Approximating covering problems by randomized search heuristics using multi-objective models
The main aim of randomized search heuristics is to produce good approximations of optimal solutions within a small amount of time. In contrast to numerous experimental results, th...
Tobias Friedrich, Nils Hebbinghaus, Frank Neumann,...
ALGORITHMICA
2010
156views more  ALGORITHMICA 2010»
13 years 8 months ago
On Covering Problems of Rado
T. Rado conjectured in 1928 that if S is a finite set of axis-parallel squares in the plane, then there exists an independent subset I S of pairwise disjoint squares, such that I ...
Sergey Bereg, Adrian Dumitrescu, Minghui Jiang
ICDT
2005
ACM
128views Database» more  ICDT 2005»
14 years 2 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...
ORL
2011
13 years 3 months ago
Solving large Steiner Triple Covering Problems
Computing the 1-width of the incidence matrix of a Steiner Triple System gives rise to small set covering instances that provide a computational challenge for integer programming ...
James Ostrowski, Jeff Linderoth, Fabrizio Rossi, S...