Model parameters are defined by adopting AIC criterion and also the monthly coal production in 2006 in China is forecasted based on the model.
利用AIC准则确定模型参数，并根据模型对我国2006年的月度煤炭生产量进行预测。
Selecting the AIC criterion as the selection principle to get the system model orders, recognizing the model parameters by the least squares method, it has recognized the system ARX model.
选用AIC准则作为系统模型阶次的选择原则，以最小二乘法来辨识模型参数，辨识了系统的ARX模型。
Furthermore, we give a new method of grouping according to the thought of AIC, and name it as variance criterion.
受到AIC准则想法的启发，随后给出一个新的分组方法，定义为绝对方差准则。
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