南京大学学报(自然科学版) ›› 2022, Vol. 58 ›› Issue (1): 8293.doi: 10.13232/j.cnki.jnju.2022.01.009
Jingqian Wang1, Xiaohong Zhang1,2()
摘要:
针对不完备信息提出一种新的基于矩阵方法的极大相容块求取算法与属性约简方法,结合智能分类器给出不完备信息条件下的故障诊断方法.首先,通过矩阵方法计算不完备决策表中的极大相容块;然后,利用所求得的极大相容块,提出一种新的属性约简算法,并与其他方法做对比;最后,将所提出的基于极大相容块的属性约简方法与智能分类器(支持向量机、随机森林、决策树等)结合,建立优化的智能故障分类器,将它应用于不完备信息条件下的故障诊断.以汽轮机组的故障诊断为例进行仿真实验,实验结果表明提出的针对不完备信息条件下的故障诊断方法可行、有效.
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