Methods for the construction of concept maps are related to the selection of concepts, the classification of concepts, the orientation of central concepts, linking concepts and cross concepts.
概念地图构建方法关心概念选取、概念分类、中心概念定位、连接概念和交叉概念等几个主要问题。
2
The classification probability model of household can provide the element datum of traffic trip generation forecast which use crossclassification method.
建立家庭分类概率模型，可以对使用交叉分类分析法的交通产生预测提供基础数据。
3
The results of cross-compatibility experiments also support the classification system of Magnoliaceae, which was established in terms of morphological characteristics.