class DNN::Losses::MeanAbsoluteError

Public Instance Methods

backward_node(d) click to toggle source
# File lib/dnn/core/losses.rb, line 87
def backward_node(d)
  dy = (@y - @t)
  dy[dy >= 0] = 1
  dy[dy < 0] = -1
  d * dy / @y.shape[0]
end
forward_node(y, t) click to toggle source
# File lib/dnn/core/losses.rb, line 81
def forward_node(y, t)
  @y = y
  @t = t
  (y - t).abs.mean(0).sum
end