Tang Try

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Activity overview

Latest activity by Tang Try

  • Tang Try commented,

    Thanks a lot.

    View comment Tang Try 0 votes

  • Tang Try commented,

    Thank you, I noticed that we can remove constraint by model.remove(), So is it possible to use model.addConstr() rather than model.cbCut in the callback function? Are there any differences between ...

    View comment Tang Try 0 votes

  • Tang Try created a post,

    Remove cbCut

    Answered

    I tried to implement some user cut by callback function to solve a MIP problem. I'm wondering if it is possible to remove some of the cuts during the callback? Btw, I'm using python to write the pr...

    Tang Try 4 followers 5 comments 0 votes

  • Tang Try commented,

    Thank you for the information.

    View comment Tang Try 0 votes

  • Tang Try created a post,

    Lift and project cut

    Answered

    Does Gurobi have lift and project cut? I found a relax and lift cut, but can't find any interpretation about the cut, are they the same?

    Tang Try 3 followers 3 comments 1 vote

  • Tang Try created a post,

    Callback add heuristic solution only when the gap is small

    Answered

    I tried to use callback function to add some heuristics. But the heuristic is time consuming, so I wish I can add them only when the gap is already low, for example less than 10%I noticed that I ha...

    Tang Try 4 followers 2 comments 0 votes