
Yuan Gao
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Activity overview
Latest activity by Yuan Gao-
Yuan Gao commented,
Hi Matthias, thank you for replying. The solution is feasible, since it is easy to find a feasible one in the hub location problem. I have tried function "useSolution", which returned a value equal...
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Yuan Gao created a post,
How to insert new heuristic solution in Callback?
Hello! Recently, I have a problem when using callback in a MIP problem. In the condtion "where == GRB_CB_MIPNODE" and "getIntInfo(GRB_CB_MIPNODE_STATUS) == GRB_OPTIMAL", I construct a better feasib...
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Yuan Gao commented,
Hi Monir. It is possible for Gurobi to find a feasible solution faster. Pay attention to this parameter when solving MIP: MIPFocus. The refman says: " If you are more interested in finding feasible...