Disjunctive Decomposition for Two-Stage Stochastic Mixed-Binary Programs with Random Recourse

  • Authors:
  • Lewis Ntaimo

  • Affiliations:
  • Department of Industrial and Systems Engineering, Texas A&M University, College Station, Texas 77843

  • Venue:
  • Operations Research
  • Year:
  • 2010

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Abstract

This paper introduces disjunctive decomposition for two-stage mixed 0-1 stochastic integer programs (SIPs) with random recourse. Disjunctive decomposition allows for cutting planes based on disjunctive programming to be generated for each scenario subproblem under a temporal decomposition setting of the SIP problem. A new class of valid inequalities for mixed 0-1 SIP with random recourse is presented. In particular, we derive valid inequalities that allow for scenario subproblems for SIP with random recourse but deterministic technology matrix and right-hand side vector to share cut coefficients. The valid inequalities are used to derive a disjunctive decomposition method whose derivation has been motivated by real-life stochastic server location problems with random recourse, which find many applications in operations research. Computational results with large-scale instances to demonstrate the potential of the method are reported.