DEA method depends on available financial ratios, avoiding subjective shortcomings, simplifying calculation, which has special meanings in credit risk management for banking in China.
DEA方法利用可以获取的财务指标，避免主观因素，简化运算，对完善我国银行风险管理方法具有特殊的意义。
Simplifying calculation formula and a kind of accurate computing method were proposed.
提出了简化的计算公式和一种精确的计算方法。
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