Gaussian-Bernoulli RBM
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Quote from the Paper of *To be Bernoulli or to be Gaussian, for a Restricted
Boltzmann Machine* 1
The Guassian-Bernoulli RGM(GBRBM) has visible units with real value
vm and binary hidden unitshn . Based on the same idea as GBRGM, the energy function of GBRGM is defined as:E(v,h)=−∑i=1m∑j=1nwijhjviσi−∑i=1m(vi−bi)22σ2i−∑j=1mcjhj Where
bi andci are biases corresponding respectively to visible and hidden units,wij are the connecting weights between the visible and hidden units andσi is the standard deviation associated with Guassian visible unitsvi . Conditional probablities for visible and hidden units are:p(vi=v|h)=N(v|bi+∑jhjwij,σ2)
p(hj=1|v)=sigmoid(cj+∑wijviσ2 Where
N(μ,σ2) demotes the Gaussian probability destiny function with meanμ and standard deviationσ .
- To be Bernoulli or to be Gaussian, for a Restricted
Boltzmann Machine ↩
0 0
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