Hi there to all of you,
If you modeled the problem as a mixed-integer linear problem, how did you minimize the objective function? I attempted to solve the mixed-integer model using an open-source solver, but it didn't seem to work within a day.
Have you modeled the issue differently than as a mixed-integer problem or tried using metaheuristics?
This method requires restricting all variables to be integers, no? Are you sure this is appropriate for the data we were given?
milp = mixed-integer linear programming, so no it doesn't require all variables to be integer