Use of the Minimum-Norm Search Direction in a Nonmonotone Version of the Gauss-Newton Method

F. Lampariello and M. Sciandrone
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F. Lampariello: Istituto di Analisi dei Sistemi ed Informatica
M. Sciandrone: Istituto di Analisi dei Sistemi ed Informatica

Journal of Optimization Theory and Applications, 2003, vol. 119, issue 1, No 5, 65-82

Abstract: Abstract In this work, a new stabilization scheme for the Gauss-Newton method is defined, where the minimum norm solution of the linear least-squares problem is normally taken as search direction and the standard Gauss-Newton equation is suitably modified only at a subsequence of the iterates. Moreover, the stepsize is computed by means of a nonmonotone line search technique. The global convergence of the proposed algorithm model is proved under standard assumptions and the superlinear rate of convergence is ensured for the zero-residual case. A specific implementation algorithm is described, where the use of the pure Gauss-Newton iteration is conditioned to the progress made in the minimization process by controlling the stepsize. The results of a computational experimentation performed on a set of standard test problems are reported.

Keywords: Gauss-Newton method; nonlinear least-squares problems; minimum norm solution; nonmonotone line search techniques (search for similar items in EconPapers)
Date: 2003
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Citations: View citations in EconPapers (1)

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DOI: 10.1023/B:JOTA.0000005041.99777.af

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