·2,447,543篇论文数据，部分数据来源于NoteExpress
本文在现有的信用评级法指标体系基础上，运用主成分分析法定量筛选评价指标，克服指标选取的主观性。
Based on the current index system of credit rating, we use Principal Component Analysis to filtrate the index quantitatively, overcoming the subjectivity of index selection.
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