JUN ZHOU

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  • Total activity 26
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Posts

Recent activity by JUN ZHOU Recent activity Votes

  • Job Shop Schedule Problem

    Answered

    Hi all, I'm considering a job shop shceduling problem, as shown in the following figure. In this example, there are three printed paper products that must pass through color printing presses in a p...

    JUN ZHOU 2 followers 6 comments 0 votes

  • Issue with updating gurobipy version

    Answered

    I attmpted to upgrade the gurobipi version using pip, as show below . Something went wrong. Thanks for your help. python -m pip install gurobipy==10.0.1 ERROR: Cannot uninstall 'gurobipy'. It is a ...

    JUN ZHOU 4 followers 8 comments 0 votes

  • Unbounded constraint

    Answered

    Dear Comunity, I'm considering a dual problem and suppose it has such form. But I don't know how to model the constraint, though it looks like linear programming. I'm a little confused. Could you d...

    JUN ZHOU 2 followers 3 comments 0 votes

  • loop for conditioanl constraint

    Answered

    Dear Community, I have been trapped in the loop for conditioanl constraints. As shown in below, y, b and count are variables. Train_Sample are knwon. Here I just plan to compare y and Train_Sample....

    JUN ZHOU 2 followers 14 comments 0 votes