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“性价比”与“信价比”
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作者 施程 《电脑时空》 2005年第2期9-9,共1页
人们在选购产品的时候都要考虑一个“性价比”,这是无可厚非的事情,也没有什么再多说的余地,但是“信价比”这个词语对于消费者就比较陌生了。手机的生命期较短,这是一个不争的事实,往往是一、两年的光景就要更新换代,一方面是手... 人们在选购产品的时候都要考虑一个“性价比”,这是无可厚非的事情,也没有什么再多说的余地,但是“信价比”这个词语对于消费者就比较陌生了。手机的生命期较短,这是一个不争的事实,往往是一、两年的光景就要更新换代,一方面是手机自身发展的原因,但是更加重要的是一年之后的手机出现故障往往是无法修理的,这就是商家的信誉问题,所以购买手机信价比更加重要。 展开更多
关键词 手机 “性价比” “信价比” 移动通
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A Credit Risk Evaluation Approach to Neural Network Training by Means of Financial Ratios
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作者 Qian Ye 《Journal of Systems Science and Information》 2009年第1期23-32,共10页
In recent years artificial neural networks are used to recognize the risk category of investigated companies. The research is based on data from 81 listed enterprises that applied for credit in domestic regional banks... In recent years artificial neural networks are used to recognize the risk category of investigated companies. The research is based on data from 81 listed enterprises that applied for credit in domestic regional banks operating in China. The backpropagation algorithm-the multilayer feedforward network structure is described. Each firm is described by 9 diagnostic variables and potential borrowers are classified into four classes. The efficiency of classification is evaluated in terms of classification errors calculated from the actual classification made by the credit officers. The results of the experiments show that LevenbergMarque training error is smallest among 4 learning algorithms and its performance is better, and application of artificial neural networks and classification functions can support the creditworthiness evaluation of borrowers. 展开更多
关键词 credit risk evaluation financial ratio neural network classification algorithms the multilayer network
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