多层前馈网络的一种快速算法  

A Fast Algorithm for Multi-layered Feedforward Networks

作　　者：曹长修[1] 叶仲泉[1] 张邦礼[1] 刘一武[1] 

机构地区：[1]重庆大学

出　　处：《自动化与仪器仪表》1996年第6期5-7,共3页Automation & Instrumentation

基　　金：高等学校博士点基金

摘　　要：多层前馈网络是目前研究得最多和应用最广泛的神经网络之一，其基本算法为误差反向传播（ＥＢＰ）算法，但存在收敛速度慢和局部极小的问题。本文利用递归最小二乘算法来训练多层前馈网络，ＲＬＳ算法具有收敛速度快，抗噪声能力强等优点，还克服了常规ＢＰ算法中学习率选取困难的缺点。仿真结果说明了本文方法的有效性。Multi-layered feedforward network, with errorback-propagation as its basic algorithm,is one of themost researched and widely used neural networks inrecent years; but its such a kind of algorithm still hasthe shortage of slow convergence speed and the problem of local minimization.In this paper,we train thenetwork by using recursive least squares algorithm,which has a fast parameter convergence speed and agood robustness agaist noise and disturbance, andwhich can also eliminate the need for an arbitary stepsize. A simulation is also given to show the effectiveness of this method.

关 键 词：神经网络 多层前馈网络 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程]