CVaR is a new tool for credit risk measurement and optimization, which provides the tail information of loss and is favorable to keeping away the extreme finance risk with very little probability.

条件受险价值是一种能够反映损失分布尾部信息，从而有利于防范小概率极端金融风险的风险度量和优化工具。

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The probability models for all types of possible faults can be built up and calculated to get an index of information loss and finally a fast algorithm is developed to calculate the index.

文中还研究了通过信息损失来计算故障诊断解空间的概率分布方法，并针对大规模系统给出了近似解空间概率分布的求解方法。

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