Tristan Van Leeuwen

I consider the inference of subsurface medium parameters from measurements of (acoustic) seismic waves. The source of such waves may be either man-made --as is the case in oil&gas exploration -- or natural -- as in global seismology. Naturally, this...

Images obtained from (active) seismic data are used by the oil and gas industry for geophysical exploration. Waveform inversion tries to obtain a detailed image of the subsurface by solving a PDE-constrained optimization problem. The scale of the...

Many inverse problems in science and engineering involve multi-experiment data and thus require a large number of forward simulations. Dimensionality reduction techniques aim at reducing the number of forward solves by (randomly) subsampling the data...