Title
On the convergence of steepest descent methods for multiobjective optimization
Abstract
In this paper we consider the classical unconstrained nonlinear multiobjective optimization problem. For such a problem, it is particularly interesting to compute as many points as possible in an effort to approximate the so-called Pareto front. Consequently, to solve the problem we define an “a posteriori” algorithm whose generic iterate is represented by a set of points rather than by a single one. The proposed algorithm takes advantage of a linesearch with extrapolation along steepest descent directions with respect to (possibly not all of) the objective functions. The sequence of sets of points produced by the algorithm defines a set of “linked” sequences of points. We show that each linked sequence admits at least one limit point (not necessarily distinct from those obtained by other sequences) and that every limit point is Pareto-stationary. We also report numerical results on a collection of multiobjective problems that show efficiency of the proposed approach over more classical ones.
Year
DOI
Venue
2020
10.1007/s10589-020-00192-0
Computational Optimization and Applications
Keywords
DocType
Volume
Multiobjective optimization, A posteriori method, Steepest descent algorithm, 90C30, 90C56, 65K05
Journal
77
Issue
ISSN
Citations 
1
0926-6003
1
PageRank 
References 
Authors
0.36
0
4
Name
Order
Citations
PageRank
G. Cocchi110.36
G. Liuzzi219517.16
Stefano Lucidi378578.11
M. Sciandrone433529.01