Title
Sufficient descent directions in unconstrained optimization
Abstract
Descent property is very important for an iterative method to be globally convergent. In this paper, we propose a way to construct sufficient descent directions for unconstrained optimization. We then apply the technique to derive a PSB (Powell-Symmetric-Broyden) based method. The PSB based method locally reduces to the standard PSB method with unit steplength. Under appropriate conditions, we show that the PSB based method with Armijo line search or Wolfe line search is globally and superlinearly convergent for uniformly convex problems. We also do some numerical experiments. The results show that the PSB based method is competitive with the standard BFGS method.
Year
DOI
Venue
2011
10.1007/s10589-009-9268-z
Comp. Opt. and Appl.
Keywords
DocType
Volume
Unconstrained optimization,Sufficient descent direction,PSB method,Global convergence,Superlinear convergence
Journal
48
Issue
ISSN
Citations 
3
0926-6003
5
PageRank 
References 
Authors
0.61
3
3
Name
Order
Citations
PageRank
Xiao-Min An150.61
Donghui Li238032.40
Yunhai Xiao3756.57