Deep networks for robust visual recognition

Deep networks for robust visual recognition,Yichuan Tang,Chris Eliasmith

Deep networks for robust visual recognition   (Citations: 3)
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Deep Belief Networks (DBNs) are hierarchi- cal generative models which have been used successfully to model high dimensional visual data. However, they are not robust to com- mon variations such as occlusion and random noise. We explore two strategies for improv- ing the robustness of DBNs. First, we show that a DBN with sparse connections in the rst layer is more robust to variations that are not in the training set. Second, we de- velop a probabilistic denoising algorithm to determine a subset of the hidden layer nodes to unclamp. We show that this can be ap- plied to any feedforward network classier with localized rst layer connections. Recog- nition results after denoising are signicantly better over the standard DBN implementa- tions for various sources of noise.
Conference: International Conference on Machine Learning - ICML , pp. 1055-1062, 2010
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