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. 2013 Oct 8;7:178. doi: 10.3389/fnins.2013.00178

Figure 1.

Figure 1

Boltzmann and Restricted Boltzmann Machines. A Boltzmann machine is fully connected within and between layers, whereas in a RBM, the lateral connections in the visible and hidden layers are removed. As a result, the random variables encoded by hidden units are conditionally independent given the states of the visible units, and vice versa.