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Erwin Kalvelagen

Developing Math Programming Models by day and trying to solve them at night.

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Top posts (14)

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10 Hard to soft constraint Jan 23
9 CPLEX log always the same after hours (“Gap” and “Best Integer” always blanks) Jun 18
8 Non-symmetric Positive Definite/Semidefinite Matrix in Quadratic Program Jun 27
6 warmstarting simplex algorithm- how much can problems differ from each other? Apr 20
6 How to add a SOS1 equality constraint? Mar 23
5 Converting evolutionary optimization problem from Excel to Python Feb 1
5 GAMS: Is there a way to retrieve the gap from the final solve statement Dec 15 '20
5 CPLEX output log Dec 10 '20
5 Looking for an example of a heuristic implementation in GAMS Nov 10 '20
4 Any Solution for $k$-means with minimum and maximum cluster size constraint? May 5
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