5 citations · 12 across the 5 of their papers we have counts for
5 papers
A matching pursuit approach to the geophysical inverse problem of seismic travel time tomography under the ray theory approximation
Naomi Schneider, Volker Michel, Karin Sigloch +1
Seismic travel time tomography is a geophysical imaging method to infer the 3-D interior structure of the solid Earth. Most commonly formulated as a linear(ized) inverse problem, i…
High-dimensional experiments for the downward continuation using the LRFMP algorithm
Naomi Schneider, Volker Michel, Nico Sneeuw
Time-dependent gravity data from satellite missions like GRACE-FO reveal mass redistribution in the system Earth at various time scales: long-term climate change signals, inter-ann…
A dictionary learning add-on for spherical downward continuation
Naomi Schneider, Volker Michel
We propose a novel dictionary learning add-on for existing approximation algorithms for spherical inverse problems such as the downward continuation of the gravitational potential.…
A first approach to learning a best basis for gravitational field modelling
Volker Michel, Naomi Schneider
Gravitational field modelling is an important tool for inferring past and present dynamic processes of the Earth. Functions on the sphere such as the gravitational potential are us…
Vectorial Slepian Functions on the Ball
Volker Michel, Sarah Orzlowski, Naomi Schneider
Due to the uncertainty principle, a function cannot be simultaneously limited in space as well as in frequency. The idea of Slepian functions in general is to find functions that a…