class NN::Sigmoid

Public Instance Methods

backward(dout) click to toggle source
# File lib/nn.rb, line 318
def backward(dout)
  dout * (1.0 - @out) * @out
end
forward(x) click to toggle source
# File lib/nn.rb, line 314
def forward(x)
  @out = 1.0 / (1 + NMath.exp(-x))
end