neuron_builders.py 文件源码

def build_step(self, signals):
        j = signals.gather(self.J_data)

        j -= self.one

        z = tf.nn.softplus(j / self.sigma) * self.sigma
        z += self.epsilon

        rates = self.amplitude / (
            self.tau_ref + self.tau_rc * tf.log1p(tf.reciprocal(z)))

        signals.scatter(self.output_data, rates)