短语词组短语Stochastic Sparse -grid Collocation Algorithm 随机稀疏网格配置法sparse matrix canonical grid 稀疏矩阵规则网格;应用稀疏矩阵规则网格;网格nested sparse grid 嵌套式稀疏网格generalized Sparse Grid 广义稀疏网格sparse matrix canonical grid method 稀疏矩阵规则网格法 返回 sparse grid