An algorithm for global solution to bi-parametric linear complementarity constrained linear programs

An algorithm for global solution to bi-parametric linear complementarity constrained linear programs

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Article ID: iaor201526120
Volume: 62
Issue: 2
Start Page Number: 263
End Page Number: 297
Publication Date: Jun 2015
Journal: Journal of Global Optimization
Authors: , ,
Keywords: programming: linear, programming: mathematical, heuristics
Abstract:

A linear program with linear complementarity constraints (LPCC) is among the simplest mathematical programs with complementarity constraints. Yet the global solution of the LPCC remains difficult to find and/or verify. In this work we study a specific type of the LPCC which we term a bi‐parametric LPCC. Reformulating the bi‐parametric LPCC as a non‐convex quadratically constrained program, we develop a domain‐partitioning algorithm that solves a series of the linear subproblems and/or convex quadratically constrained subprograms obtained by the relaxations of the complementarity constraint. The choice of an artificial constants‐pair allows us to control the domain on which the partitioning is done. Numerical results of robustly solving 105 randomly generated bi‐parametric LPCC instances of different structures associated with different numbers of complementarity constraints by the algorithm are presented.

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