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COCOON
2005
Springer
14 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
EPS
1998
Springer
14 years 2 months ago
Evolutionary Algorithms for Vertex Cover
This paper reports work investigating various evolutionary approaches to vertex cover (VC), a well-known NP-Hard optimization problem. Central to each of the algorithms is a novel ...
Isaac K. Evans
WECWIS
2006
IEEE
107views ECommerce» more  WECWIS 2006»
14 years 4 months ago
Concept Covering for Automated Building Blocks Selection based on Business Processes Semantics
In this paper we present a novel approach and a system for automated selection of building blocks, by exploiting business processes semantics. The selection process is based on a ...
Francesco di Cugno, Tommaso Di Noia, Eugenio Di Sc...
WWW
2005
ACM
14 years 11 months ago
Automated semantic web services orchestration via concept covering
We exploit the recently proposed Concept Abduction inference service in Description Logics to solve Concept Covering problems. We propose a framework and polynomial greedy algorit...
Tommaso Di Noia, Eugenio Di Sciascio, Francesco M....
ESA
2003
Springer
124views Algorithms» more  ESA 2003»
14 years 3 months ago
The Minimum Generalized Vertex Cover Problem
Let G = (V, E) be an undirected graph, with three numbers d0(e) ≥ d1(e) ≥ d2(e) ≥ 0 for each edge e ∈ E. A solution is a subset U ⊆ V and di(e) represents the cost contr...
Refael Hassin, Asaf Levin