永宁 赵

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Recent activity by 永宁 赵 Recent activity Votes

  • Modeling of conditional constraints

    Answered

    Hi, Is there any way to modeling a conditional constraint like follows: if x > X0, then y = 1if x = X0, then y = 0 where x and y are decision variables, and X0 is a predefined constant number. Thanks.

    永宁 赵 3 followers 3 comments 0 votes

  • Any good practice for using bigM?

    Answered

    Hi, I am using many big-Ms in my model, which makes my coefficient statistics very bad. I think that is the main reason for the very slow solving of my optimisation. Matrix range [2e-02, 4e+06]Obj...

    永宁 赵 3 followers 3 comments 0 votes

  • Solution count

    Answered

    Hi, I am new to optimization and Gurobi, does anyone know what the "solution count" mean when it is greater than 1? Thanks. Yongning 

    永宁 赵 4 followers 5 comments 1 vote