Deep Boltzmann Machines as Feed-Forward Hierarchies

Gregoire Montavon, Mikio Braun, Klaus-Robert Muller ; JMLR W&CP 22: 798-804, 2012.

Abstract

The deep Boltzmann machine is a powerful model that extracts the hierarchical structure of observed data. While inference is typically slow due to its undirected nature, we argue that the emerging feature hierarchy is still explicit enough to be traversed in a feed-forward fashion. The claim is corroborated by training a set of deep neural networks on real data and measuring the evolution of the representation layer after layer. The analysis reveals that the deep Boltzmann machine produces a feed-forward hierarchy of increasingly invariant representations that clearly surpasses the layer-wise approach.




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Page last modified on Thu April 26 2012 13:56 2012.

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