A.Omidi
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Latest activity by A.Omidi
A.Omidi commented,
Dear Riley, Many thanks for your answer as well as the provided links. It seems Gurobi uses the BigM method to linearize finally the indicator constraint. As I am not well familiar with SOS constra...

A.Omidi commented,
Dear Riley, Many thanks for your informative comments. The parts, either be translated to linear constraints and will be translated into SOS1 constraints are exactly what I was looking for. Could y...

A.Omidi commented,
Dear support team, May I have your insight regarding the above questions? All the best

A.Omidi commented,
Dear Riley, Many thanks for sharing your insights. Just as the followup questions: How does Gurobi deal with disjunction terms internally? Specifically, when one would like to use the indicator v...

A.Omidi commented,
Dear Riley, Many thanks for your detailed answers and explanation. Your last sentences in the first paragraph were really what I was looking for, and cleared many things. I thought by reformulating...

A.Omidi commented,
Dear Riley, Thank you so much for your detailed answer. If you have a convex hull formulation then the model can be solved with an LP algorithm, you won't need MIP strategies like branch and boun...

A.Omidi created a post,
Is there a preference to use Convexhull reformulation instead of the BigM constraints?
OngoingDear support team, I am trying to work on a scheduling problem based on its polyhedron reformulations. For that, I would like to reformulate a BigM model into its equivalent Convex hull, (CH), for...

A.Omidi commented,
Dear Jaromil, Many thanks for your explanation. I have just updated it. Regards Abbas

A.Omidi commented,
Dear Eli, Many thanks for your detailed explanation. I can do that for modifying my model and it works fine. :) Would you say please, how you can use LaTex in your comments? I tried it but, it seem...

A.Omidi created a post,
Linearizing factorial function
AnsweredDear community team, I'm trying to write a constraint in the following form: $$(a_j * (s_j!)) / L \leq 1\gamma$$ Where \(\texttt{a}\) and \(\texttt{gamma}\) are constants and \(\texttt{s}\) and \(...