Hybrid Methods for Nonlinear Least Squares
- 1 January 1987
- journal article
- Published by Oxford University Press (OUP) in IMA Journal of Numerical Analysis
- Vol. 7 (3) , 371-389
- https://doi.org/10.1093/imanum/7.3.371
Abstract
The conjecture is considered that the hybrid GN-BFGS method of Al-Baali and Fletcher [1] is superlinearly convergent. A counterexample is constructed for which the method is only linearly convergent whereas the BFGS method alone would be superlinearly convergent, thus disproving the conjecture.Keywords
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