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ENDM
2007
111views more  ENDM 2007»
14 years 9 months ago
Claw-free circular-perfect graphs
The circular chromatic number of a graph is a well-studied refinement of the chromatic number. Circular-perfect graphs is a superclass of perfect graphs defined by means of this...
Arnaud Pêcher, Xuding Zhu
ENDM
2010
110views more  ENDM 2010»
14 years 10 months ago
Modelling the Hop Constrained Connected Facility Location Problem on Layered Graphs
Gouveia et al. [3] show how to model the Hop Constrained Minimum Spanning tree problem as Steiner tree problem on a layered graph. Following their ideas, we provide three possibil...
Ivana Ljubic, Stefan Gollowitzer
ENDM
2010
126views more  ENDM 2010»
14 years 10 months ago
A 0/1 Integer Programming Model for the Office Space Allocation Problem
We propose a 0/1 integer programming model to tackle the office space allocation (OSA) problem which refers to assigning room space to a set of entities (people, machines, roles, ...
Özgür Ülker, Dario Landa-Silva
ENDM
2010
130views more  ENDM 2010»
14 years 10 months ago
Experimental Analysis of an Online Trading Algorithm
Trading decisions in financial markets can be supported by the use of online algorithms. We evaluate the empirical performance of a threat-based online algorithm and compare it to...
Günter Schmidt, Esther Mohr, Mike Kersch
ENDM
2010
115views more  ENDM 2010»
14 years 7 months ago
On the knapsack closure of 0-1 Integer Linear Programs
Many inequalities for Mixed-Integer Linear Programs (MILPs) or pure Integer Linear Programs (ILPs) are derived from the Gomory corner relaxation, where all the nonbinding constrai...
Matteo Fischetti, Andrea Lodi