siqi du

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Latest activity by siqi du

  • siqi du commented,

      corresponding formulate: x(cal_emission in code)=0.5*\theta_i^2+0.2*z_i^2+0.5; z_i = sum(\theta_j * G[i,j] for j in range(n_cars) y(cal_travel_time in code)=1/(1+\theta_i) Running example:     No...

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  • siqi du created a post,

    Stuck in very specific bound while solving MIP

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    Hello, when i try to solve a MIP in Gurobi, it always stuck in 15% gap( I tried set PreSOS1Encoding, Cuts and MIPFocus as below). Is there any parameter I can have a try? # n_cars = 100, budget =...

    siqi du 2 followers 2 comments 0 votes