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