Designing flexible systems using a new notion of submodularity

Designing flexible systems using a new notion of submodularity

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Article ID: iaor2013738
Volume: 41
Issue: 1
Start Page Number: 107
End Page Number: 111
Publication Date: Jan 2013
Journal: Operations Research Letters
Authors: , ,
Keywords: optimization
Abstract:

We study the problem of optimal flexibility capacity portfolio selection by introducing a new notion of submodularity for correspondences, which extends the classical notion of submodular functions. In particular, we prove that the correspondence that maps flexible resources to the set of demands that they can process is submodular, and use the properties of submodular correspondences to compare different flexibility configurations and derive insights into the optimal capacity portfolio.

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