Module: BackProp

Defined in:
lib/backprop.rb,
lib/perceptron.rb

Defined Under Namespace

Classes: Layer, MLP, Neuron, Value

Class Method Summary collapse

Class Method Details

.mean_squared_error(a1, a2) ⇒ Object 



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# File 'lib/perceptron.rb', line 99

def self.mean_squared_error(a1, a2)
  a1.map.with_index { |a, i|
    (a - a2[i]) ** 2
  }.inject(Value.new(0)) { |memo, val| memo + val } / a1.size
end

.rand_inputs(num_inputs, num_examples, rand_arg) ⇒ Object 



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# File 'lib/perceptron.rb', line 105

def self.rand_inputs(num_inputs, num_examples, rand_arg)
  Array.new(num_examples) {
    Array.new(num_inputs) { Value.new rand(rand_arg) }
  }
end

.rand_outputs(num_examples, rand_arg) ⇒ Object 



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# File 'lib/perceptron.rb', line 111

def self.rand_outputs(num_examples, rand_arg)
  Array.new(num_examples) { Value.new rand(rand_arg) }
end