gp.py 文件源码

def _pull_from_cache_or_compute(self):
        if self.caching and len(self._cache_list) == self.num_states:
            chol  = self._cache_list[self.state]['chol']
            alpha = self._cache_list[self.state]['alpha']
        else:
            chol  = spla.cholesky(self.kernel.cov(self.inputs), lower=True)
            alpha = spla.cho_solve((chol, True), self.values - self.mean.value)

        return chol, alpha