Title
A surrogate management framework using rigorous trust-region steps
Abstract
Surrogate models are frequently used in the optimization engineering community as convenient approaches to deal with functions for which evaluations are expensive or noisy, or lack convexity. These methodologies do not typically guarantee any type of convergence under reasonable assumptions. In this article, we will show how to incorporate the use of surrogate models, heuristics, or any other process of attempting a function value decrease in trust-region algorithms for unconstrained derivative-free optimization, in a way that global convergence of the latter algorithms to stationary points is retained. Our approach follows the lines of search/poll direct-search methods and corresponding surrogate management frameworks, both in algorithmic design and in the form of organizing the convergence theory.
Year
DOI
Venue
2014
10.1080/10556788.2012.719508
Optimization Methods and Software
Keywords
Field
DocType
corresponding surrogate management framework,surrogate model,algorithmic design,convergence theory,function value decrease,global convergence,rigorous trust-region step,convenient approach,unconstrained derivative-free optimization,optimization engineering community,lack convexity,derivative free optimization,algorithm design,trust region
Convergence (routing),Trust region,Mathematical optimization,Convexity,Algorithm design,Surrogate model,Heuristics,Stationary point,Symbolic convergence theory,Mathematics
Journal
Volume
Issue
ISSN
29
1
1055-6788
Citations 
PageRank 
References 
2
0.37
12
Authors
2
Name
Order
Citations
PageRank
S. Gratton130236.13
luis n vicente217611.24