Datum | 16 October 2018, 16.00 to 17.00h |
---|---|

Lokatie | Zernike, 5161.0293 (Bernoulliborg) |

Omschrijving |
Constraint-relaxation for PDE-constrained optimization in inverse problems
In many applications, such as exploration geophysics, seismology and ultrasound imaging, we want to estimate material properties from indirect observations. We can pose the inverse problem as a non-linear data-fitting problem: By relaxing the constraints we mitigate some of this non-linearity and gain the freedom to incorporate model-errors at the same time. However, solving the resulting optimization problem numerically deserves special attention since we can no longer use black-box PDE solvers. In this talk I will discuss several aspects of this relaxation and present numerical results to illustrate some of the issues. |

Organisator | Rijksuniversiteit Groningen (email) |

Geplaatst door | Bernoulli Secretariaat |