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。
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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.
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.