Zhibin Deng

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Latest activity by Zhibin Deng
  • Zhibin Deng commented,

    Dear Sonja,   I set WHERE = GRB.Callback.MIPSOL. I check whether the current incumbent solution gives an SDP constraint by checking the minimal eigenvalue of the solution matrix "X". If the minimal...

  • Zhibin Deng commented,

    Sonja, thank you for your suggestion.   I used "callback" to add lazy constraints. I check, in my callback function, whether the incumbent solution satisfies the SDP constraint. If not, then a lazy...

  • Zhibin Deng created a post,

    Lazy constraints not working?

    I'm solving a mixed-integer semidefinite programming (SDP) problem using lazy constraints in the callback for the SDP constraint. That is, when Gurobi found a feasible solution, I add a lazy constr...