Class: Neuron

Inherits:
Object
  • Object
show all
Includes:
DataMapper::Resource
Defined in:
lib/models/neuron.rb

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/models/neuron.rb', line 9

def initialize(number_of_inputs, layer_index)
  create_weights(number_of_inputs)
  self.layer_index = layer_index
end

Instance Method Details

#fire(input) ⇒ Object 



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# File 'lib/models/neuron.rb', line 14

def fire(input)
  self.last_output = activation_function(input)
end

#inspect ⇒ Object 



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# File 'lib/models/neuron.rb', line 27

def inspect
  weights
end

#update_weight(inputs, training_rate) ⇒ Object 



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# File 'lib/models/neuron.rb', line 18

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

#weights ⇒ Object 



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# File 'lib/models/neuron.rb', line 31

def weights
  db_weights.split(',').map {|x| x.to_f}
end