Class: DNN::Layers::Concatenate

Inherits:
MergeLayer show all
Includes:
LayerNode
Defined in:
lib/dnn/core/layers/merge_layers.rb

Instance Attribute Summary collapse

Attributes inherited from Layer

#input_shape, #output_shape

Instance Method Summary collapse

Methods included from LayerNode

#forward

Methods inherited from MergeLayer

call, #call

Methods inherited from Layer

#<<, #build, #built?, #call, call, #clean, #compute_output_shape, #forward, from_hash

Constructor Details

#initialize(axis: 1) ⇒ Concatenate

Returns a new instance of Concatenate.



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# File 'lib/dnn/core/layers/merge_layers.rb', line 26

def initialize(axis: 1)
  super()
  @axis = axis
end

Instance Attribute Details

#axis ⇒ Object (readonly)

Returns the value of attribute axis.



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# File 'lib/dnn/core/layers/merge_layers.rb', line 24

def axis
  @axis
end

Instance Method Details

#backward_node(dy) ⇒ Object 



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# File 'lib/dnn/core/layers/merge_layers.rb', line 37

def backward_node(dy)
  dy.split([@x1_dim, @x1_dim + @x2_dim], axis: @axis)
end

#forward_node(x1, x2) ⇒ Object 



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# File 'lib/dnn/core/layers/merge_layers.rb', line 31

def forward_node(x1, x2)
  @x1_dim = x1.shape[@axis]
  @x2_dim = x2.shape[@axis]
  x1.concatenate(x2, axis: @axis)
end

#load_hash(hash) ⇒ Object 



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# File 'lib/dnn/core/layers/merge_layers.rb', line 45

def load_hash(hash)
  initialize(axis: hash[:axis])
end

#to_hash ⇒ Object 



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# File 'lib/dnn/core/layers/merge_layers.rb', line 41

def to_hash
  super(axis: @axis)
end