典型:一种面向对象的知识表示模式

Prototype:An Object Oriented Schema for Knowledge Representation

可以肯定,知识本身就是“面向对象”的。那么,能否为知识的表示(即形式化)找到一种面向对象的模式呢?回答几乎也是肯定的——典型便是它的一种理想模式。典型作为一种表示知识的概念模式不仅在 CAD 系统中正得到重视和应用,而且在其它知识处理领域中也将有美好的应用前景。目前面向对象的概念引起了普遍的关注,本文将从面向对象出发对典型这一模式给以较深入的讨论。一、认知活动中的典型在人类认知活动中,人们往往借助“类”(class)去区分万事万物,于是众多的事物可被分为各种各样的类,整个世界也就成了一个类体系。另一方面。

The notion of PROTOTYPE,which is a schema for knowledge repres- entation resently proposed(Gero,1987),is being applied to knowledge- based design systems and would have a good future of applications to other knowledge processing systems.This paper elaborates the notion of prototype mainly from object-oriented viewpoint,and briefly represents a design prototype.Operations on prototypes are also generally demonstrated consi- dering with different types of knowledge processing.