Questions tagged [concert]
The concert tag has no usage guidance.
4
questions
2
votes
1
answer
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Structuring an MINLP solver
Folks, I am working on a project in which I have to code some C++ algorithms for smooth MINLPs.
Such algorithms are Extended Cutting Plane, Extended Supporting Hyperplane, and Outer Approximation. I ...
3
votes
1
answer
120
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How can I change decision variable type in Concert Technologies (with Java)
I have a MILP model with continuous variables ($y_{ij}$) and binaries ($x_{ij}$).
I am using Java and cplex 12.8 for implementation.
Is there a way by which - using the Java-cplex API - I would be ...
2
votes
1
answer
409
views
How to determine whether the solution is integer feasible in a CPLEX heuristic callback?
I am working with a MILP formulation of a routing problem using Concert CPLEX 12.10. And I am implementing a greedy heuristic that uses the variables fractional values to attempt to construct an ...
3
votes
1
answer
658
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Why does the getTime() function from cplex concert returns wrong value?
I am running a MILP formulation (implemented in C++) with the Cplex Concert Technology 12.10, and I am trying to get the total elapsed time. So till the moment, I have tried three approaches:
Be ...