class DNN::Layers::Softplus
Public Instance Methods
backward_node(dy)
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# File lib/dnn/core/layers/activations.rb, line 49 def backward_node(dy) dy * (1 / (1 + Xumo::NMath.exp(-@x))) end
forward_node(x)
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# File lib/dnn/core/layers/activations.rb, line 44 def forward_node(x) @x = x Xumo::NMath.log(1 + Xumo::NMath.exp(x)) end