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中文摘要：
提出一种基于粗糙集描述理论与灰理论的故障诊断属性约简方法,将用粗糙集描述理论算法进行故障诊断条件属性约简的结果,依据灰色关联度算法计算灰关联系数,进一步确定约简集中条件属性间的重要性,求取最佳属性约简集.在柴油机燃油系故障诊断系统,获取了最佳属性约简集,系统运行测试获得好的故障诊断结果.
英文摘要：
One attribute reduction method for fault diagnosis was proposed based on rough set and grey theory.First,the fault diagnosis conditional attributes were reduced using rough set description algorithm,then the grey correlation coefficient was calculated based on algorithm of grey correlation degree,further more the importance among the conditional attributes in the reduction set was decided,and finally the optimal attribute reduction set was obtained.When this method was applied in diesel engine fault diagnosis system,the optimum attribute reduction set had acquired,and the system running test carried out successfully for fault diagnosis.
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