Taking the model test data as sample, the network architecture is determined by two methods, i. e. AGA-BP system and empirical formulae, to forecast the culvert stress.

以模型试验数据为样本，网络结构是由两种方法，即AGA-BP系统和经验公式，预测涵洞的应力。

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"Vica versa it's really helped as well, " he says, explaining that he is currently taking a class in e-commerce in which students usually have to use invented sample business data.

CNN: The MBA entrepreneurs