Sigma-pi神经网络激发函数特征(英文)

Characteristics of activation function in sigma-pi neural networks

研究了sigma－pi这一类神经网络激发函数的特征，给出能作为这类激发函数的充要条件，并具体给出了其表达式．

In this paper,the characteristic of activation function of sigma-pi neural networks is investigated. The necessary and sufficient condition for a function to be qualified as an activation function of sigma-pi neural networks is given.