In this paper, the basic structural characteristics of combination forecasting model is studied under the criterion of vectorial Angle cosine.

针对基于向量夹角余弦准则下组合预测模型，研究它的基本结构特征。

youdao

A fully vectorial effective index method is proposed and used to study the dispersion properties of photonic crystal fibers in combination with the concept of normalized dispersion.

提出了光子晶体光纤色散的矢量有效折射率计算方法，并结合归一化色散的概念研究了光子晶体光纤的色散特性。

youdao

Then on the basis of the interest degree , the integrated vectorial feature files character weight is calculated by the combination of the page content data and user behavior equation.

对用户行为与网页兴趣度的关系计算，则是采用建立用户行为回归方程方式，然后根据回归方程计算出用户对所浏览页面的兴趣度；

youdao