A log-barrier Newton-CG method for bound constrained optimization with complexity guarantees
Journal Article
·
· IMA Journal of Numerical Analysis
- Department of Computer Sciences, University of Wisconsin-Madison, 1210 W. Dayton Street, Madison, WI 53706, USA
Abstract
We describe an algorithm based on a logarithmic barrier function, Newton’s method and linear conjugate gradients that seeks an approximate minimizer of a smooth function over the non-negative orthant. We develop a bound on the complexity of the approach, stated in terms of the required accuracy and the cost of a single gradient evaluation of the objective function and/or a matrix-vector multiplication involving the Hessian of the objective. The approach can be implemented without explicit calculation or storage of the Hessian.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 1615402
- Journal Information:
- IMA Journal of Numerical Analysis, Journal Name: IMA Journal of Numerical Analysis Journal Issue: 1 Vol. 41; ISSN 0272-4979
- Publisher:
- Oxford University PressCopyright Statement
- Country of Publication:
- United Kingdom
- Language:
- English
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