A complex relationship between case features and fault mode in multi-fault mode case usually leads to reasoning results containing uncertain information, which motivates to propose a method based on D-S evidence theory.

• 摘要针对单纯依靠案例特征之间的相似性进行推理、结果中将存在不确定性信息的问题，通过引入证据理论，将搜索结果中的故障模式构成目标识别框架，并基于案例之间的相似度，给定各故障模式的基本概率赋值。