Class: Torch::NN::LayerNorm

Inherits:
Module
  • Object
show all
Defined in:
lib/torch/nn/layer_norm.rb

Instance Method Summary collapse

Methods inherited from Module

#_apply, #add_module, #apply, #buffers, #call, #children, #cpu, #cuda, #double, #eval, #float, #half, #inspect, #load_state_dict, #method_missing, #modules, #named_buffers, #named_children, #named_modules, #named_parameters, #parameters, #register_buffer, #register_parameter, #requires_grad!, #respond_to?, #share_memory, #state_dict, #to, #train, #type, #zero_grad

Methods included from Utils

#_ntuple, #_pair, #_quadrupal, #_single, #_triple

Constructor Details

#initialize(normalized_shape, eps: 1e-5, elementwise_affine: true) ⇒ LayerNorm

Returns a new instance of LayerNorm.



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# File 'lib/torch/nn/layer_norm.rb', line 4

def initialize(normalized_shape, eps: 1e-5, elementwise_affine: true)
  super()
  @normalized_shape = Array(normalized_shape)
  @eps = eps
  @elementwise_affine = elementwise_affine
  if @elementwise_affine
    @weight = Parameter.new(Torch::Tensor.new(*normalized_shape))
    @bias = Parameter.new(Torch::Tensor.new(*normalized_shape))
  else
    register_parameter("weight", nil)
    register_parameter("bias", nil)
  end
  reset_parameters
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method in the class Torch::NN::Module

Instance Method Details

#extra_inspect ⇒ Object 



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# File 'lib/torch/nn/layer_norm.rb', line 30

def extra_inspect
  format("%{normalized_shape}, eps: %{eps}, elementwise_affine: %{elementwise_affine}", **dict)
end

#forward(input) ⇒ Object 



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# File 'lib/torch/nn/layer_norm.rb', line 26

def forward(input)
  F.layer_norm(input, @normalized_shape, weight: @weight, bias: @bias, eps: @eps)
end

#reset_parameters ⇒ Object 



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# File 'lib/torch/nn/layer_norm.rb', line 19

def reset_parameters
  if @elementwise_affine
    Init.ones!(@weight)
    Init.zeros!(@bias)
  end
end