The official and final version of my PhD thesis dissertation is out. It is available here or from the EPFL library website. The title is Inference in Switching Linear Dynamical Systems Applied to noise robust speech recognition of isolated digits. The dissertation is mainly talking about how to perform approximate inference in Switching and Bayesian Switching Linear Dynamical Systems. The devised algorithms are applied to the automatic recognition of isolated spoken digits in noisy environments. Additional information can be found here.