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COR
2006
94views more  COR 2006»
15 years 4 months ago
A comparison of two different formulations for arc routing problems on mixed graphs
Arc Routing Problems on mixed graphs have been modelled in the literature either using just one variable per edge or associating to each edge two variables, each one representing ...
Angel Corberán, Enrique Mota, José M...
108
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DAM
2006
88views more  DAM 2006»
15 years 4 months ago
NP-completeness results for edge modification problems
The aim of edge modification problems is to change the edge set of a given graph as little as possible in order to satisfy a certain property. Edge modification problems in graphs...
Pablo Burzyn, Flavia Bonomo, Guillermo Durá...
COR
2007
99views more  COR 2007»
15 years 4 months ago
An improved algorithm for the p-center problem on interval graphs with unit lengths
The p-center problem is to locate p facilities in a network of n demand points so as to minimize the longest distance between a demand point and its nearest facility. We consider ...
T. C. Edwin Cheng, Liying Kang, C. T. Ng
4OR
2005
104views more  4OR 2005»
15 years 4 months ago
The robust shortest path problem with interval data via Benders decomposition
Many real problems can be modelled as robust shortest path problems on digraphs with interval costs, where intervals represent uncertainty about real costs and a robust path is not...
Roberto Montemanni, Luca Maria Gambardella
SIAMCOMP
1998
168views more  SIAMCOMP 1998»
15 years 4 months ago
Efficient Algorithms for the Domination Problems on Interval and Circular-Arc Graphs
This paper first presents a unified approach to design efficient algorithms for the weighted domination problem and its three variants, i.e., the weighted independent, connected,...
Maw-Shang Chang