Vector Fitting vs. Levenberg-Marquardt : Some experiments

@article{Knockaert2009VectorFV,
  title={Vector Fitting vs. Levenberg-Marquardt : Some experiments},
  author={Luc Knockaert and F. Archambaud Ferranti and Tom Dhaene},
  journal={2009 IEEE Workshop on Signal Propagation on Interconnects},
  year={2009},
  pages={1-4}
}
A discussion and evaluation of the Vector Fitting technique is presented, in comparison with a special flavor of the Levenberg-Marquardt method, which is one of the most successful quasi Gauss-Newton techniques. Although generally slower than Vector Fitting, the Levenberg-Marquardt method can achieve greater accuracy than Vector Fitting, because of its unique ability to navigate between local minima. 

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