虚拟环境选线系统中的知识表达模式

知识表达模式是虚拟环境选线设计系统实现智能功能的关键部分。本文首先从分析铁路线路走向选择的相关因素入手 ,探讨了选线领域知识的体系结构。在分析领域知识特点的基础上 ,提出面向对象类规则知识表达模式 ,并将此方法用于表达铁路选线设计领域知识。实例证明 ,本文提出的类规则知识表达模式 ,将产生式规则知识表达法与面向对象技术相结合 ,在知识表达方面能有效灵活地表达铁路选线领域的决策类知识

Knowledge Representation Model for the Virtual Environment Railway Location System

Knowledge expression model is one of the kernel parts in the Virtual Environment Railway Location System. Based on the analysis of relevant factors in railway location, this paper discusses the structure of domain knowledge and constructs a heterogeneous knowledge model for railway location. Based on the analysis of the structure and classification of domain knowledge in railway location, we present a class-rule knowledge representation model which integrates two popular AI representation techniques (object-oriented representation and rule-based representation). It can be used to represent the domain-specific knowledge about decision-making efficiently. In this paper, several examples illustrate the application of the class-rule model. The class-rule model has proved to be a efficient method for knowledge representation for the railway location system.