func NeuronRemoveBias(neuron *ng.Neuron) (bool, MutateResult) {
if neuron.Bias != 0 {
neuron.Bias = 0
return true, nil
}
return false, nil
}
func NeuronAddBias(neuron *ng.Neuron) (bool, MutateResult) {
if neuron.Bias == 0 {
neuron.Bias = RandomBias()
return true, nil
}
return false, nil
}
func possiblyPerturbBias(neuron *ng.Neuron, probability float64, saturationBounds []float64) bool {
didPerturb := false
if rand.Float64() < probability {
bias := neuron.Bias
perturbedBias := perturbParameter(bias, saturationBounds)
neuron.Bias = perturbedBias
logg.LogTo("DEBUG", "bias %v -> %v", bias, perturbedBias)
didPerturb = true
}
return didPerturb
}