病态矩阵HILBERT，正则化高斯消元法，cholesky分解法-Ill-conditioned matrix HILBERT, regularization of Gaussian elimination method, cholesky decomposition

大部份的优化问题都是多峰函数或病态函数，为了克服基本粒子群算法的缺陷，我研究了以下四种改进的粒子群算法(Most optimization problems are multi-peak functions or ill-conditioned functions. In order to overcome the defects of basic particle swarm optimization, I studied the following four improved particl