Lunch Seminars

Peter Melchior, “What do galaxies, roof tops, and cocktail parties have in common?”

Thursday, 19 October 2017 from to (US/Central)
at Bldg. 362 ( F108 )
On first sight, not much. However, I will show that the mathematical structure of many signals (in astronomy, cosmology, and elsewhere) can and should be described by mixture models. Doing so requires to identify and characterize the contributing components. To solve this usually underconstrained problem I will introduce the novel and efficient framework "scarlet", which can accommodate a large variety of constraints/priors on the component shapes or amplitudes, and demonstrate its capabilities on 1D probability distributions, astronomical images, and hyperspectral data sets.