7
votes
partitioning hub assignment models
Formulating as one big problem requires more memory, some way to recognize that the problem decomposes into disjoint subproblems, and some way to then solve the subproblems independently. At least ...
4
votes
Accepted
partitioning hub assignment models
Cost matrixes are discussed in the book: "Assignment Problems" by Rainer Burkard, Mauro Dell'Amico, Silvano Martello (on pages 73, and 200, etc.). Yes, some parts would be unconnected (most ...
4
votes
Accepted
Prioritizing a special group in Facility Location problem
You can add a constraint that says the number of vulnerable people assigned to a facility is at least a specified fraction of the total number of vulnerable people (where the fraction is set to 1 if ...
1
vote
Prioritizing a special group in Facility Location problem
One way to try is to have lower assignment cost (assuming a minimization objective) to vulnerable people compared to non-vulnerable for a given facility.
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