A.Omidi
- Total activity 49
- Last activity
- Member since
- Following 0 users
- Followed by 0 users
- Votes 0
- Subscriptions 20
Activity overview
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 follow-up 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 Convex-hull 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 \(...