, 2006; Gigerenzer& Selten, 2001), 但该类研究大多着眼于结果预测(e prediction)或模型拟合(goodness-of-fitting)的视角。近年来, 研究者们逐渐意识到这种结果预测或模型拟合研究范式的不足。
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为了用线性或非线性模型拟合纵向数据，需要确定一个合理的协方差结构。
It is necessary to make a reasonable covariance structure for longitudinal data so as to fit these data with linear or nonlinear models.
本文根据以前传统或复合基团相互作用法的模型并且考虑到本方法模指数的概念，提出了一般物性估算模型方程：，根据此模型对1228种物质进行拟合得出基团相互作用键的贡献值。
In view of simple group contribution and bond module index, a universal model was set up as the following:, and bond contribution data from 1228 substances were calculated by this equation.
传统逆向工程要经过曲面拟合、等距、裁剪或三角网格剖分建立其曲面模型，进而才能在曲面模型上生成数控加工刀位。
For the traditional reverse engineering, the tool-path is generated based on the surface fitting, surface offset and triangulation to construct the surface model.
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