摘要
提出了一种求解非线性方程组的数值方法,将求解非线性方程组的解转化为函数优化问题,应用粒子群优化算法求出一个近似解,将此解作为初始猜测值,进一步应用Levenberg-Marquardt(LM)算法求得更高精度的解,提高了时间效率。
A numeric method of solving nonlinear equation group is proposed.The problem of solving nonlinear equation group is equivalently changed to the problem of function optimization,and then a solution is obtained by particle swarm optimization, considering it as the initial guess of Levenberg-Marquardt algorithm,a more accurate solution can be obtained,as a result,time efficiency is improved.
出处
《计算机工程与应用》
CSCD
北大核心
2009年第28期41-42,47,共3页
Computer Engineering and Applications
基金
四川省教育厅基金No.2006C047~~