Sajjad Hedayati

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  • Total activity 14
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Posts

Recent activity by Sajjad Hedayati Recent activity Votes

  • Calling Shadow Prices Under Degeneracy

    Ongoing

    Dear Gurobi community I wonder if there is any possibility that we can get degeneracy information of a degenerate optimal basic feasible solution. In fact, I need to drop those constraints that are...

    Sajjad Hedayati 2 followers 2 comments 0 votes

  • Issues with adding valid inequalities

    Answered

    Hi everyone I have a full integer model with both binary and positive integer variables. I would like to extract the relaxed LP solutions and apply some valid inequality. I already know that MIPNOD...

    Sajjad Hedayati 2 followers 2 comments 0 votes

  • Applying LR to the B&B for MIPs

    Answered

    Hi everyone I am trying to apply Lagrangian Relaxation to Branch-and-Bound to solve a MIP problem. How can I use LR during branching? I know that I have to use callbacks but I do not know how I can...

    Sajjad Hedayati 4 followers 8 comments 0 votes