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Strong Inequalities for Chance-Constrained Program

Ming Zhao (mr.ming.zhao***at***gmail.com)
Kai Huang (khuang***at***mcmaster.ca)
Bo Zeng (bzeng***at***usf.edu)

Abstract: As an essential substructure underlying a large class of chance-constrained programming problems with finite discrete distributions, the mixing set with $0-1$ knapsack has received considerable attentions in recent literature. In this study, we present a family of strong inequalities that subsume existing ones for this set. We also find many other inequalities that can be explained by lifting on $0-1$ knapsack with continuous variable restrained in piecewise intervals. To develop stronger inequalities for the original chance-constraint model, earlier studies consider a relaxation of the intersection of multiple mixing sets by aggregating individual mixing sets into a single mixing set. Then, non-trivial inequalities can be generated from such resulting single mixing set. Nevertheless, it is unknown that if this procedure will derive facet-defining inequalities for the intersection of multiple mixing sets. Different from such traditional formulation aggregation strategy, we propose a new blending procedure that can produce strong inequalities by combining valid inequalities from individual mixing sets. We further show that those inequalities are facet-defining under certain conditions.

Keywords: polyhedral study, chance-constrained program, mixing set

Category 1: Integer Programming

Category 2: Integer Programming (Cutting Plane Approaches )

Citation:

Download: [PDF]

Entry Submitted: 11/08/2014
Entry Accepted: 11/08/2014
Entry Last Modified: 08/16/2015

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