FITC_network.py 文件源码

def compute_phi_prior(self):
        logZ_prior = 0
        for i in range(self.no_layers):
            Dout_i = self.layer_sizes[i+1]
            if not self.zu_tied:
                for d in range(Dout_i):
                    (sign, logdet) = np.linalg.slogdet(self.Kuu[i][d])
                    logZ_prior += 0.5 * logdet
            else:
                (sign, logdet) = np.linalg.slogdet(self.Kuu[i])
                logZ_prior += Dout_i * 0.5 * logdet

        return logZ_prior