关键词: 神经网络, 灵敏度, 输入层剪枝

Abstract: Based on sensitivity matrix,a simple definition of sensitivity,which describes the effects of a single input node on the performance of the network,is proposed in this paper.Then an approach to input layer pruning is presented on the basis of the defined sensitivity.Finally,two pattern classification examples from the UCI machine-learning databases are used to verify the above method.

Key words: neural network, sensitivity, input layer pruning