base.py 文件源码

def _do_forward_pass(self, framelogprob):
        n_samples, n_components = framelogprob.shape
        fwdlattice = np.zeros((n_samples, n_components))
        _hmmc._forward(n_samples, n_components,
                       log_mask_zero(self.startprob_),
                       log_mask_zero(self.transmat_),
                       framelogprob, fwdlattice)
        return logsumexp(fwdlattice[-1]), fwdlattice