Parameters

The network parameters, to be optimized/learned:

  1. \( \mathbf{a} \) represents the visible bias, a vector of same length as \( \mathbf{x} \).
  2. \( \mathbf{b} \) represents the hidden bias, a vector of same lenght as \( \mathbf{h} \).
  3. \( W \) represents the interaction weights, a matrix of size \( M\times N \).