bench_nn.cpp

//| This file is a part of the sferes2 framework.
//| Copyright 2009, ISIR / Universite Pierre et Marie Curie (UPMC)
//| Main contributor(s): Jean-Baptiste Mouret, mouret@isir.fr
//|
//| This software is a computer program whose purpose is to facilitate
//| experiments in evolutionary computation and evolutionary robotics.
//|
//| This software is governed by the CeCILL license under French law
//| and abiding by the rules of distribution of free software.  You
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//| following URL "http://www.cecill.info".
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#include "nn.hpp"

int main() {
  using namespace nn;
  typedef NN<Neuron<PfWSum<>, AfTanh<float> >, Connection<> > nn_t;

  nn_t nn;

  BOOST_STATIC_CONSTEXPR size_t nb_io = 5;
  BOOST_STATIC_CONSTEXPR size_t nb_h = 100;

  nn.set_nb_inputs(nb_io);
  nn.set_nb_outputs(nb_io);

  std::vector<nn_t::vertex_desc_t> neurons;
  for (size_t i = 0; i < nb_h; ++i)
    neurons.push_back(nn.add_neuron("n"));

  for (size_t i = 0; i < nn.get_nb_inputs(); ++i)
    for (size_t j = 0; j < neurons.size(); ++j)
      nn.add_connection(nn.get_input(i), neurons[j], 1.0f);

  for (size_t i = 0; i < nn.get_nb_outputs(); ++i)
    for (size_t j = 0; j < neurons.size(); ++j)
      nn.add_connection(neurons[j], nn.get_output(i), 0.20f);

  std::vector<float> in(nn.get_nb_inputs());
  nn.init();
  std::fill(in.begin(), in.end(), 1.0f);
  size_t nb_steps = 50000;
  for (size_t i = 0; i < nb_steps; ++i)
    nn.step(in);
  return 0;
}