Class: Neuron

Inherits:
Object
  • Object
show all
Defined in:
lib/db_mlp/neuron.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(number_of_inputs, layer_index) ⇒ Neuron

Returns a new instance of Neuron.


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# File 'lib/db_mlp/neuron.rb', line 7

def initialize(number_of_inputs, layer_index)
  create_weights(number_of_inputs)
  @layer_index = layer_index
end

Instance Attribute Details

#delta ⇒ Object

Returns the value of attribute delta.


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# File 'lib/db_mlp/neuron.rb', line 3

def delta
  @delta
end

#last_output ⇒ Object (readonly)

Returns the value of attribute last_output.


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# File 'lib/db_mlp/neuron.rb', line 5

def last_output
  @last_output
end

#layer_index ⇒ Object (readonly)

Returns the value of attribute layer_index.


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# File 'lib/db_mlp/neuron.rb', line 5

def layer_index
  @layer_index
end

Instance Method Details

#fire(input) ⇒ Object 


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# File 'lib/db_mlp/neuron.rb', line 12

def fire(input)
  @last_output = activation_function(input)
end

#inspect ⇒ Object 


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# File 'lib/db_mlp/neuron.rb', line 24

def inspect
  weights
end

#update_weight(inputs, training_rate) ⇒ Object 


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# File 'lib/db_mlp/neuron.rb', line 16

def update_weight(inputs, training_rate)
  inputs << -1  # Add the bias node
      
  weights.each_index do |i|
    weights[i] +=  training_rate * delta * inputs[i]
  end
end

#weights ⇒ Object 


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# File 'lib/db_mlp/neuron.rb', line 28

def weights
  @weights ||= []
end