The model combines Nested Neural Network (NNN) and GA together, where NNN is used as a pre-processor which can reduce the quantity of fault types to be explored by the GA.

• 将嵌套神经网络与遗传算法有机结合，嵌套神经网络的功能相当于一种预处理器，可以减少由遗传算法处理的故障类型的数量。