%0 Generic %A Mertens, Ulf Kai %C Heidelberg, Deutschland %D 2019 %F heidok:26383 %K Deep learning; convolutional neural network; Approximate Bayesian Computation %R 10.11588/heidok.00026383 %T Deep learning methods for likelihood-free inference :approximating the posterior distribution with convolutional neural networks %U https://archiv.ub.uni-heidelberg.de/volltextserver/26383/ %X In this thesis, a fast and likelihood-free approach for parameter inference is introduced. The convolutional neural network, named DeepInference, learns to predict the posterior mean and variance of multi-dimensional posterior distributions from raw simulated data. It is shown how DeepInference can be applied to the drift diffusion model (DDM) and the Lévy flight model, a likelihood-free extension of the DDM. For both models, state-of-the-art results in terms of accuracy of parameter estimation are observed.