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math.OC2021
New commodity representations for multicommodity network flow problems: An application to the fixed-charge network design problem
Ahmad Kazemi, Pierre Le Bodic, Andreas Ernst +1
When solving hard multicommodity network flow problems using an LP-based approach, the number of commodities is a driving factor in the speed at which the LP can be solved, as it i…
math.OC2019
Further Results on an Abstract Model for Branching and its Application to Mixed-Integer Programming
Daniel Anderson, Pierre Le Bodic, Kerri Morgan
A key ingredient in branch and bound (B&B) solvers for mixed-integer programming (MIP) is the selection of branching variables since poor or arbitrary selection can affect the size…