还有一些极端事件根本不在常规预测的范围之内。
There are other kinds of extreme events outside the range of conventional forecasts.
笔者结合公路旅游客运的特点，提出了地区旅游客运总量的“弹性系数法”的常规预测模型；
Closely related to the characteristics of road tourist transport, this paper comes up with a regular predictive model, Elasticity Coefficient Method, about regional total volume of tourist transport.
在算法库中，除了部分的常规预测算法，如滑动平均、指数平滑、线性回归等，还加入了BP神经网络算法进行预测。
In the arithmetic base, besides some general predict algorithm as glide average, exponential smoothness, linearity regress, etc, it adds BP neural network algorithm for forecast.
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