Class: DNN::Layers::Sigmoid
- Includes:
- LayerNode
- Defined in:
- lib/dnn/core/layers/activations.rb
Instance Attribute Summary
Attributes inherited from Layer
Instance Method Summary collapse
Methods included from LayerNode
Methods inherited from Layer
#<<, #build, #built?, #call, call, #clean, #compute_output_shape, #forward, from_hash, #initialize, #load_hash, #to_hash
Constructor Details
This class inherits a constructor from DNN::Layers::Layer
Instance Method Details
#backward_node(dy) ⇒ Object
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# File 'lib/dnn/core/layers/activations.rb', line 11 def backward_node(dy) dy * (1 - @y) * @y end |
#forward_node(x) ⇒ Object
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# File 'lib/dnn/core/layers/activations.rb', line 7 def forward_node(x) @y = 1 / (1 + Xumo::NMath.exp(-x)) end |