-

 

 

 




Optimization Online





 

Mitigating Uncertainty via Compromise Decisions in Two-stage Stochastic Linear Programming

Suvrajeet Sen (s.sen***at***usc.edu)
Yifan Liu (yifanl***at***usc.edu)

Abstract: Stochastic Programming (SP) has long been considered as a well-justified yet computationally challenging paradigm for practical applications. Computational studies in the literature often involve approximating a large number of scenarios by using a small number of scenarios to be processed via deterministic solvers, or running Sample Average Approximation on some genre of high performance machines so that statistically acceptable bounds can be obtained. In this paper we show that for a class of stochastic linear programming problems, an alternative approach known as Stochastic Decomposition (SD) can provide solutions of similar quality, in far less computational time using ordinary desktop or laptop machines of today. In addition to these compelling computational results, we also provide a stronger convergence result for SD, and introduce a new solution concept which we refer to as the compromise decision. This new concept is attractive for algorithms which call for multiple replications in sampling-based convex optimization algorithms. For such replicated optimization, we show that the difference between an average solution and a compromise decision provides a natural stopping rule. Finally our computational results cover a variety of instances from the literature, including a detailed study of SSN, a network planning instance which is known to be more challenging than other test instances in the literature.

Keywords: Stochastic Linear Programming, Stochastic Decomposition, Computational Experiments

Category 1: Stochastic Programming

Citation: Unpublished Report, Data Driven Decisions Lab, Daniel J. Epstein Department of Industrial and Systems Engineering, University of Southern California, Los Angeles, CA - 90089

Download: [PDF]

Entry Submitted: 01/27/2014
Entry Accepted: 01/27/2014
Entry Last Modified: 09/02/2015

Modify/Update this entry


  Visitors Authors More about us Links
  Subscribe, Unsubscribe
Digest Archive
Search, Browse the Repository

 

Submit
Update
Policies
Coordinator's Board
Classification Scheme
Credits
Give us feedback
Optimization Journals, Sites, Societies
Mathematical Optimization Society