[mlpack-git] [mlpack/mlpack] NeuralEvolution - implemented gene, genome (#686)

[Marcus Edel]

> +  // Reproduce next generation of population.
> +  void Reproduce() {
> +    // keep best genome.
> +    Genome lastBestGenome = aPopulation.BestGenome();
> +
> +    // Remove stale species.
> +    if (aPopulation.aSpecies.size() > 10) {
> +      RemoveStaleSpecies(aPopulation);
> +    }
> +    ////printf("hehe 0\n"); // DEBUG
> +    // Remove weak genomes in each species.
> +    CullSpecies(aPopulation, aCullSpeciesPercentage);
> +    ////printf("hehe 1\n"); // DEBUG
> +
> +    // Remove weak species.
> +    if (aPopulation.aSpecies.size() > 10) {

As for the number of stale species, we should also provide a parameter for the number of weak species.

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