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Branching and bounds tighteningtechniques for non-convex MINLP

Branching and bounds tighteningtechniques for non-convex MINLP Many industrial problems can be naturally formulated using mixed integer non-linear programming (MINLP) models and can be solved by spatial Branch&Bound (sBB) techniques. We study the impact of two important parts of sBB methods: bounds tightening (BT) and branching strategies. We extend a branching technique originally developed for MILP, reliability branching, to the MINLP case. Motivated by the demand for open-source solvers for real-world MINLP problems, we have developed an sBB software package named couenne (Convex Over- and Under-ENvelopes for Non-linear Estimation) and used it for extensive tests on several combinations of BT and branching techniques on a set of publicly available and real-world MINLP instances. We also compare the performance of couenne with a state-of-the-art MINLP solver. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Optimization Methods and Software Taylor & Francis

Branching and bounds tighteningtechniques for non-convex MINLP

38 pages

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References (99)

Publisher
Taylor & Francis
Copyright
Copyright Taylor & Francis Group, LLC
ISSN
1029-4937
eISSN
1055-6788
DOI
10.1080/10556780903087124
Publisher site
See Article on Publisher Site

Abstract

Many industrial problems can be naturally formulated using mixed integer non-linear programming (MINLP) models and can be solved by spatial Branch&Bound (sBB) techniques. We study the impact of two important parts of sBB methods: bounds tightening (BT) and branching strategies. We extend a branching technique originally developed for MILP, reliability branching, to the MINLP case. Motivated by the demand for open-source solvers for real-world MINLP problems, we have developed an sBB software package named couenne (Convex Over- and Under-ENvelopes for Non-linear Estimation) and used it for extensive tests on several combinations of BT and branching techniques on a set of publicly available and real-world MINLP instances. We also compare the performance of couenne with a state-of-the-art MINLP solver.

Journal

Optimization Methods and SoftwareTaylor & Francis

Published: Oct 1, 2009

Keywords: mixed-integer non-linear programming; Couenne; branching rules; bounds tightening; 90C11; 90C26; 90C57

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