使用BP算法时应考虑的若干问题

SOME PROBLEMS TO BE CONSIDERED IN USING BP ALGORITHM

归纳总结了使用 BP算法时可能涉及到的问题和一些技巧 .尤其对学习方法的选择、隐层数和隐层单元数的选择、学习步长的选择、避免局部最小的方法、学习样本的选择。

Some skills and problems to be dealt with in using BP algorithm are summarized in this paper. The method to avoid local minimum and the selections of learning method, learning step length, learning samples and activating function are introduced especially.