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YS
why not branch-and-cut with cplex?
http://www.zh-cn.org L.J.
I am using CPLEX now. Once you get a feasible solution, you can choose emphasize on feasibility or optimality, which can influence the speed significantly. Anohter option is the “backtrack”, which can change the search direction.
The default setting works OK for most situation, but sometimes you need to adjust the configuration.
