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» Greedy algorithms for on-line set-covering and related probl...
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CATS
2006
14 years 11 months ago
Greedy algorithms for on-line set-covering and related problems
Giorgio Ausiello, Aristotelis Giannakos, Vangelis ...
NETWORKS
2006
14 years 9 months ago
Lower bounds for the relative greedy algorithm for approximating Steiner trees
Abstract. The Steiner tree problem is to find a shortest subgraph that spans a given set of vertices in a graph. This problem is known to be NP-hard and it is well known that a pol...
Stefan Hougardy, Stefan Kirchner
ECML
2006
Springer
15 years 1 months ago
An Efficient Approximation to Lookahead in Relational Learners
Abstract. Greedy machine learning algorithms suffer from shortsightedness, potentially returning suboptimal models due to limited exploration of the search space. Greedy search mis...
Jan Struyf, Jesse Davis, C. David Page Jr.
ESA
2004
Springer
120views Algorithms» more  ESA 2004»
15 years 3 months ago
Solving Geometric Covering Problems by Data Reduction
We consider a scenario where stops are to be placed along an already existing public transportation network in order to improve its attractiveness for the customers. The core probl...
Steffen Mecke, Dorothea Wagner
RECOMB
2004
Springer
15 years 10 months ago
Perfect phylogeny and haplotype assignment
This paper is concerned with the reconstruction of perfect phylogenies from binary character data with missing values, and related problems of inferring complete haplotypes from h...
Eran Halperin, Richard M. Karp