The system adopts forward-backward double-threshold inexact inference strategy and combines knowledge process with data process organically. 系统采用了正反向混合双阈值不精确推理策略,而且把知识处理与数值处理有机地结合起来。
Ultimate reason is that there is not breakthrough in the theory methods of system's knowledge express and management The problem that expert system must solve is that how to acquire inexact knowledge and relation, at the basis of which, a correct conclusion must be drawn. 其根本原因在于系统的知识表示和处理的理论方法上没有取得突破。如何获得不准确或不确切的知识和关系,并在此基础上做出正确的结论就成为专家系统所需要解决的一个问题。
A Study of the Inexact Knowledge Base Resource 非确定性知识库资源的研究
The main idea of the theory is to approximate inexact, uncertain concepts by using of available knowledge or information. 其主要思想是利用已知的知识或信息来近似不精确的概念或现象。
Interval valued ( I v) fuzzy sets and vague sets are two new theories representing inexact knowledge. 区间值(i-v)模糊集合和Vague集是不精确知识表达的两种新理论。