This article presents a new method for optimal matching in observational studies based on mixed integer programming. Unlike widely used matching methods based on network algorithms, which attempt to ...

R. C. Daniel, Martyn Jeffreys, Unboundedness in Integer and Discrete Programming L.P. Relaxations, The Journal of the Operational Research Society, Vol. 30, No. 12 ...

The feasibility pump is a well-established primal heuristic for mixed integer programming (MIP) that alternates between solving a linear programming (LP) relaxation of the original problem and ...