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Applied and computational Analysis Seminars

Applications of deep learning in Bayesian inversion

With Ozan Öktem (KTH and Alan Turing Institute)

Applications of deep learning in Bayesian inversion

The talk will show how deep neural networks can be used to compute a Bayes estimator in a computationally feasible manner without explicitly specifying a prior or probability of data. The prior and probability of data are implicitly contained in supervised data that is used to train the deep neural network, whereas the data likelihood is explicitly included into the network architecture. Next, we also show how to use generative adversarial networks to sample from the posterior in a computationally feasible manner. Both these approaches are generic, and their performance is demonstrated for tomographic reconstruction in a clinical setting.

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