人脸识别系统中的BP网分类方法

BP NEURAL NETWORK FOR CLASSIFICATION OF FACE RECOGNITION SYSTEM

介绍了用于人脸模式自动识别系统中的ＢＰ网的基本原理和算法及步骤，提出了隐层神经元个数的物理意义和选取原理，讨论了Ｓｉｇｍｏｉｄ函数的改进形式和网络初始权值的设置原则．

The basic principle and algorithm steps of BP Neural Network used in face recognition system are introduced in this paper,the physical meaning and the choosing principle of the number of hiding layer cells are proposed,the advanced form of sigmoid function and the BP’s W ij initial values setting principle are also discussed.