说明：  最小均方误差（MMSE）的算法，最小二乘回归分析算法，包括最小二乘法、SVM、神经网络、1_k近邻法。
( Minimum mean square error (MMSE) algorithm, Least-squares regression analysis algorithm, Including the least squares method, the SVM, neural networks, 1 _k neighbor method.)