Jiří Němeček
AI student and researcher
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Activity overview
Latest activity by Jiří Němeček-
Jiří Němeček commented,
Hello, I have encountered a similar issue, my model was postponing all nodes and never computed a result. The model did not have any severe numerical issues (all variables within relative range up...
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Jiří Němeček commented,
Hello everyone, thank you for this thread! I have a little thing to add, I was doing a similar thing as Michael, but my model takes time at the optimize call, even after reading the solution. The ...
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Jiří Němeček commented,
I have come across the same issue. What works well for me is creating a model with the same variables (MVars), then reading the values to model from the *.sol file. In Python: model = gb.Model()va...
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Jiří Němeček commented,
Hello Simon, thank you very much for your reply. Somehow I didn't realize that all variables have a default lower bound set to 0. You've helped me a lot. Setting the lower bound to -infinity made t...
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Jiří Němeček created a post,
How is my model infeasible? The found IIS looks like 6 linear equations.
AnsweredI have a little bit complicated model of a neural network in ILP. My model is infeasible, but when I generate IIS as proposed in https://www.gurobi.com/documentation/10.0/refman/py_model_computeiis...