Questions tagged [boltzmann-machine]

For questions related to Boltzmann machines (aka stochastic Hopfield network with hidden units), which are stochastic recurrent neural networks, more precisely, they are Markov random fields.

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How do we calculate the hidden units values in a (restricted) Boltzmann machine?

Now, Boltzmann machines are energy-based undirected networks, meaning there are no forward computations. Instead, for each input configuration $x$, a scalar energy is calculated to asses this ...
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How is the distribution of the state related to the distribution of the units in Boltzmann machines?

I'm trying to understand Boltzmann machines. Tutorials explain it with two formulas. Logistic function for the probability of single units: $$p(unit=1)=\frac{1}{1+e^{-\sum_{x}wx } }$$ and, when the ...
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What is the difference between visible and hidden units in Boltzmann machines?

What is the difference between visible and hidden units in Boltzmann machines? What are their purposes?
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What are the differences between a deep belief network, a restricted Boltzmann machine and a deep Boltzmann machine?

Can anyone list the differences between deep Belief network (DBN), restricted Boltzmann machine (RBM), deep Boltzmann machine (DBM) using simple examples? Links to other resources are also ...