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» Time and Space Lower Bounds for Implementations Using k-CAS
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MFCS
2001
Springer
14 years 1 months ago
News from the Online Traveling Repairman
In the traveling repairman problem (Trp), a tour must be found through every one of a set of points (cities) in some metric space such that the weighted sum of completion times of ...
Sven Oliver Krumke, Willem de Paepe, Diana Poensge...
ENDM
2010
105views more  ENDM 2010»
13 years 8 months ago
Minimizing Expected Attacking Cost in Networks
A branch-and-bound algorithm is devised to determine the optimal attack strategy to disconnect a network where the objective is to minimize the expected attacking cost. The attack...
Anis Gharbi, Mohamed Naceur Azaiez, Mohamed Kharbe...
TRANSCI
2011
80views more  TRANSCI 2011»
13 years 3 months ago
The Dynamic Uncapacitated Hub Location Problem
This paper presents a dynamic (or multi-period) hub location problem. It proposes a branch-and-bound algorithm that uses a Lagrangean relaxation to obtain lower and upper bounds a...
Ivan Contreras, Jean-François Cordeau, Gilb...
CORR
2010
Springer
68views Education» more  CORR 2010»
13 years 8 months ago
Johnson-Lindenstrauss lemma for circulant matrices
We prove a variant of a Johnson-Lindenstrauss lemma for matrices with circulant structure. This approach allows to minimise the randomness used, is easy to implement and provides ...
Aicke Hinrichs, Jan Vybíral
HYBRID
2007
Springer
14 years 15 days ago
Safety Verification of an Aircraft Landing Protocol: A Refinement Approach
Abstract. In this paper, we propose a new approach for formal verification of hybrid systems. To do so, we present a new refinement proof technique, a weak refinement using step in...
Shinya Umeno, Nancy A. Lynch