Abstract
We propose to strengthen the separable Lagrangean relaxation of the Simple Plant Location Problem (SPLP) by using Benders inequalities generated during a Lagrangean dual ascent procedure. These inequalities are expressed in terms of the 0–1 variables only, and they can be used as knapsack constraints in the pure integer part of the Lagrangean relaxation. We show how coupling this technique with a good primal heuristic can substantially reduce integrality gaps.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
