BP神经网络在MATLAB上的方便实现

Convenient Realization of BP Networks on MATLAB

BP神经网络已广泛应用于非线性建模、函数逼近、模式分类等方面。但对解决具体问题而言，其模型结构的确定、每层神经元个数的选择无现成的规律可供遵循，必需由实验确定。由于BP网络收敛速度慢，计算量大，无形中要增加实验编程工作量。本文介绍了利用目前较为流行的工程计算软件MATLAB进行BP网络建立、训练、仿真的编程方法，并给出应用示例和应用注意事项。

BP feed - forward networds can be applied to nonlinear modelling ,function approximation,pattem association ,and pattemclassification.As to actual problem,there were no system method to solve network architecture and neurons,quite a fewexperiment must be made.A conver=nient relization onMATLAB was present in this article.In can be easily used to creating anetwork,training a network and simulating a netword.Some illustrations and cautions were introduced too.