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COR
2007
112views more  COR 2007»
15 years 3 months ago
The bi-objective covering tour problem
The paper discusses the definition and solution of a bi-objective routing problem, namely the bi-objective covering tour problem. The bi-objective CTP is a generalization of the ...
Nicolas Jozefowiez, Frédéric Semet, ...
EOR
2007
111views more  EOR 2007»
15 years 3 months ago
A pegging approach to the precedence-constrained knapsack problem
The knapsack problem (KP) is generalized to the case where items are partially ordered through a set of precedence relations. As in ordinary KPs, each item is associated with proļ...
Byungjun You, Takeo Yamada
IANDC
2007
123views more  IANDC 2007»
15 years 3 months ago
Hardness of fully dense problems
In the past decade, there has been a stream of work in designing approximation schemes for dense instances of NP-Hard problems. These include the work of Arora, Karger and Karpins...
Nir Ailon, Noga Alon
SODA
2010
ACM
214views Algorithms» more  SODA 2010»
16 years 1 months ago
A Fourier space algorithm for solving quadratic assignment problems
The quadratic assignment problem (QAP) is a central problem in combinatorial optimization. Several famous computationally hard tasks, such as graph matching, partitioning, and the...
Risi Kondor
ISSAC
2007
Springer
112views Mathematics» more  ISSAC 2007»
15 years 10 months ago
G-graphs for the cage problem: a new upper bound
Constructing some regular graph with a given girth, a given degree and the fewest possible vertices is a hard problem. This problem is called the cage graph problem and has some l...
Alain Bretto, Luc Gillibert