1. The 2D graphical representation of multivariate data includes single point representation and multiple points representation. 多维数据的2D图表示可分为单点表示和多点表示。
2. The next step is the so-called dissimilarity representation [56] in which general proximity measures between objects can be used for their representation. 下个步骤就是所谓的相异点表示法[56]，对象间的一般相似性度量方法可以代替相异点表示法。
3. Character is used to mark the non-equivalent irreducible representation in group representation. 在群表示中，特征标用来标记不等价的不可约表示；
4. The next step is the so-called dissimilarity representation [56] in which general proximity measures between objects can be used for their representation. 下个步骤就是所谓的相异点表示法[56]，对象间的一般相似性度量方法可以代替相异点表示法。
5. Words are not themselves a reality but only representation of it, and the King\\'s English, like the Anglo-French of the Normans, is a class representation of reality. 单词本身并不是客观物体，只不过是代表客观体而已；像日尔曼人的盎格鲁法语一样，标准英语也是一种代表客观体的语言。
