关键词: 向后传播（BP）神经网络, 维修任务, 优先级, 分类

Abstract: During mission, determining priority categories of maintenance task rationally and scientifically is valuable to effectiveness and efficiency of maintenance support. A priority sorting approach of maintenance task during mission based on BP neural networks is proposed. Modeling process of neural networks model is discussed in detail, and it focuses on model design that includes input data preparation, output data preparation and neural networks structure. Through training of input and output, established neural networks can learn complex relationship between criteria and priority of maintenance tasks, obtain preference of decision makers, help decision maker sort maintenance tasks according to their priority.

Key words: Back-Propagation（BP） neural networks, maintenance task, priority, sorting