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Multi-Layer Perceptrons (MLPs) are often interpreted as modeling a posterior distribution over classes given input features using the mean field approximation. This approximation is fast but neglects the residual uncertainty of inference at each layer, making inference less robust. In this paper we introduce a new approximation of MLP inference that takes under consideration this residual uncertainty...
This paper presents a new approach for increasing the robustness of multi-channel automatic speech recognition in noisy and reverberant multi-source environments. The proposed method uses uncertainty propagation techniques to dynamically compensate the speech features and the acoustic models for the observation uncertainty determined at the beamforming stage. We present and analyze two methods that...
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