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Working paper
2020

Global and local information in structured derivative free optimization with BFO

Porcelli, M. & Toint, P., 15 Jan 2020, Arxiv, 27 p.

Research output: Working paper

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1 Downloads (Pure)
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1 Downloads (Pure)
2019
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5 Downloads (Pure)

Exploiting variable precision in GMRES

Gratton, S., Simon, E., Titley-Peloquin, D. & Toint, P., Jul 2019, 19 p.

Research output: Working paper

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4 Downloads (Pure)
2018

Minimizing convex quadratics with variable precision Krylov methods

Gratton, S., Simon, E. & Toint, P., 2018, (Submitted) Arxiv, 26 p.

Research output: Working paper

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12 Downloads (Pure)
2017

On the use of the saddle formulation in weakly-constrained 4D-VAR data assimilation

Gratton, S., Gürol, S., Simon, E. & Toint, P., 20 Sep 2017, (Submitted) Arxiv.

Research output: Working paper

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5 Downloads (Pure)

Worst-case evaluation complexity and optimality of second-order methods for nonconvex smooth optimization

Cartis, C., Gould, N. I. M. & Toint, P., 22 Sep 2017, Arxiv, 35 p.

Research output: Working paper

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28 Downloads (Pure)
2015

Improved worst-case evaluation complexity for potentially rank-deficient nonlinear least-Euclidean-norm problems using higher-order regularized models

Cartis, C., Gould, N. I. M. & Toint, P., 18 Nov 2015, 18 p. (naXys technical report).

Research output: Working paper

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25 Downloads (Pure)

Worst-case evaluation complexity for unconstrained nonlinear optimization using high-order regularized models

Birgin, E., Gardenghi, J., Martinez, J-M., Santos, S. A. & Toint, P., Jun 2015, 2015: Namur center for complex systems, 8 p. (naXys Technical Reports; vol. 05-2015).

Research output: Working paper

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10 Downloads (Pure)
2014
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117 Downloads (Pure)
2013

Adaptive Observations And Multilevel Optimization In Data Assimilation

Gratton, S., Rincon-Camacho, M. & Toint, P., 2013, Namur: Namur center for complex systems, 18 p.

Research output: Working paper

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12 Downloads (Pure)
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63 Downloads (Pure)