Least H2 norm updating of quadratic interpolation models for derivative-free trust-region algorithms. Xie, P. & Yuan, Y. IMA Journal of Numerical Analysis, 03, 2025. ![Least H2 norm updating of quadratic interpolation models for derivative-free trust-region algorithms [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex One particular class of derivative-free optimization algorithms is trust-region algorithms based on quadratic models given by the under-determined interpolation. Different techniques in updating the quadratic model from iteration to iteration will give different interpolation models. We propose a new way to update the quadratic model by minimizing the $H^\{2\}$ norm of the difference between neighboring quadratic models. The motivation for applying the $H^\{2\}$ norm is given. The theoretical properties of our new updating technique are also presented. We propose the projection in the sense of $H^\{2\}$ norm and the interpolation error analysis of our model function. We obtain the coefficients of the quadratic model function using the Karush–Kuhn–Tucker (KKT) conditions. Numerical results show the advantages of our model on the test set considered, and the derivative-free algorithms based on our least $H^\{2\}$ norm updating quadratic model functions can solve test problems with fewer function evaluations than the algorithm based on the least Frobenius norm updating model and the other compared methods.
@article{10.1093/imanum/drae106,
author = {Pengcheng Xie and Ya-xiang Yuan},
title = {Least H2 norm updating of quadratic interpolation models for derivative-free trust-region algorithms},
journal = {IMA Journal of Numerical Analysis},
pages = {drae106},
year = {2025},
month = {03},
abstract = {One particular class of derivative-free optimization algorithms is trust-region algorithms based on quadratic models given by the under-determined interpolation. Different techniques in updating the quadratic model from iteration to iteration will give different interpolation models. We propose a new way to update the quadratic model by minimizing the \$H^\{2\}\$ norm of the difference between neighboring quadratic models. The motivation for applying the \$H^\{2\}\$ norm is given. The theoretical properties of our new updating technique are also presented. We propose the projection in the sense of \$H^\{2\}\$ norm and the interpolation error analysis of our model function. We obtain the coefficients of the quadratic model function using the Karush–Kuhn–Tucker (KKT) conditions. Numerical results show the advantages of our model on the test set considered, and the derivative-free algorithms based on our least \$H^\{2\}\$ norm updating quadratic model functions can solve test problems with fewer function evaluations than the algorithm based on the least Frobenius norm updating model and the other compared methods.},
issn = {0272-4979},
doi = {10.1093/imanum/drae106},
url = {https://doi.org/10.1093/imanum/drae106},
eprint = {https://academic.oup.com/imajna/advance-article-pdf/doi/10.1093/imanum/drae106/62210513/drae106.pdf},
}
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