Xianbang Chen

Hi Gurobi guys, I am using Gurobi + JuMP to handle a MILP model. Below is my setting: set_optimizer_attribute(jump_model, "PoolSearchMode", 2) set_optimizer_attribute(jump_model, "PoolGap", 0.01) ...

Hello, I am trying to solve a MILP-based regression model as following. Basically, I am training the B that can lead to good w with minimal cost loss (the first term in the objective), through sol...

Hello, I am solving a MIQP problem on MATLAB with YALMIP. At first, it is solved slowly. Therefore, I take the suggestion from https://support.gurobi.com/hc/en-us/community/posts/360075509811-How-t...

I am solving a MIQP problem with GUROBI 9.1, but its solving time is lower than CPLEX and MOSEK:   GUROBI MOSEK CPLEX Optimal value 2.5059e+3 2.5101e+3 2.5101e+3 Solving tim...

Hello everyone, I try to solve a large-size MILP problem as the figure shows: In terms of solving, I think it faces two main challenges: (1)  This is a NP-hard problem due to some w are binary. Bes...

Hello everyone, I have a problem needing your help. I am modeling an MIP problem on MATLAB and YALMIP. I use the codes like  Decision_State_startup  = binvar(Number_gen,Number_horizon);Decision_Gen...