模型

Course contents include the analysis of variance and covariance, multivariate analysis of variance and covariance, principle component, factor analysis, cluster analysis, discriminant analysis, canonical correlation analysis, multidimensional scaling, discrete choice model, and LISREL.

其主要内容包括变异数与共变异数分析、多变量变异数分析、主成份分析、因素分析、集群分析、区别分析、规则相关分析、多元尺度法、二元质量选择模型、及 LISREL 模型。

The concept and the classification of forecasting are addressed. Aiming at the disadvantages of the current forecasting models, such as requirement for more data and narrow application extent, an improved GM(1,1)-transfer function-noise model for forecasting is proposed. In the first stage, the GM(1,1) model improving the generation method of neighborhood system is adopted so as to fulfil the forecasting by only using a few of data.

介绍了预测的概念与分类；针对现有产品回收预测模型数据需求量大和适用范围窄的不足，提出了改进GM(1，1)/传递函数噪声两阶段预测模型；产品回收初期数据缺乏，主要采用改进了邻域系生成方法的IGM(1，1)模型，从而实现少量数据情况下的准确预测。

For the lack of return data in the first stage, the GM(1,1) model improving the generation method of neighborhood system is adopted, and forecasting is carried out by only using a few data. When the data amount reaches 50, the hidden quantitative relationship between sale quantity and return quantity is established by performing the transfer function-noise model. Its parameters are determined through model identification, parameters estimation and diagnostic checking. Then, forecasting return is accomplished.

回收初期数据缺乏，采用改进邻域系生成方法的GM(1，1)模型，实现了少量数据情况下的预测；回收数据累积到50个后，利用传递函数噪声模型构建了回收量和前期销售量之间的内在数量关系式，然后通过模型识别、参数估计、诊断检验确定了关系式的具体参数，进而实现了回收预测。

Recommended 91 octane or higher fuel/2 (87 octane or higher for XL 883 models).

推荐了91 八炭烷或更高的燃料/2 (87 八炭烷或高为XL 883 模型)。

Key Words : graduate enrollment ;Spence model ;signal tranfer ; overeducation

研究生招生； Spence 模型；信号传递；教育过度

Partial least squares regression ; GM（1; 1） model ; combined forecast ; first energy

偏最小二乘回归； GM（1； 1）模型；组合预测；一次能源

Pitier model ; salt-water system ; prediction of solubility

Pitzer ；模型；水盐体系；溶解度计算

The modelview transform is used in the same way as it is in the OpenGL viewing pipeline, to move the viewer to the origin and the projection centered along the negative z axis. In this case, viewer can be thought of a light source, and the near clipping plane of the projection as the location of the texture image, which can be thought of as printed on a transparent film.

模型/视图变换的作用和它在OpenGL 观察管道里的作用是一样的，它将观察者沿-Z方向移动到原点和投影中心，在这种情况下，观察者就好比是是光源，近裁剪平面好比是需要投影的纹理图象的所处的位置，纹理图象可以被看作一个在投影的透明胶片。

The modelview transform is used in the same way as it is in the OpenGL viewing pipeline, to move the viewer to the origin and the projection centered along the negative z axis. In this case, viewer can be thought of a light source, an d the near clipping plane of the projection as the location of the texture ima ge, which can be thought of as printed on a transparent film.

模型/视图变换的作用和它在OpenGL 观察管道里的作用是一样的，它将观察者沿-Z方向移动到原点和投影中心，在这种情况下，观察者就好比是是光源，近裁剪平面好比是需要投影的纹理图象的所处的位置，纹理图象可以被看作一个在投影的透明胶片。

This study of the world's future, done by a team of MIT scientists with the aid of computer " models" of the future of our society, forecast a planetwide disaster unless humankind sharply limits its population growth and consumption of natural resources.

这个未来世界的研究，是由麻省理工学院的一组科学家，在我们社会的未来的计算计"模型"的帮助下进行，预测布满行星的灾难，除非人类迅速限制他们的人口增长和自然资源的消费。

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。