> Please find below a pointer to an interesting article that > compares various formulations for non-convex piecewise linear cost > functions. The formulation affects the run time of the usually hard > to solve MIP models. Non-convex and concave cost functions occur > quite often in supply chain modelling, > e.g. transportation costs with scale/utilization effects.
> Croxton, K. L., Gendron, B. and Magnanti, T. L., "A comparison of > mixed-integer programming models for non-convex piecewise linear > cost minimization problems," Management Sci., v49, pp. 1268-1273, > 2003. Thank you. I could not find that paper in the internet for free download, however, I encountered a report by the same authors and having the same title. See http://dspace.mit.edu/handle/1721.1/5233 . Andrew Makhorin _______________________________________________ Help-glpk mailing list [email protected] http://lists.gnu.org/mailman/listinfo/help-glpk
