连续值域信息系统的规则提取与知识约简  

Decision Rule Acquisition and Knowledge Reduction on Information System with Continuous Condition Attributes

作　　者：李然[1] 

机构地区：[1]西安交通大学理学院,陕西西安710049

出　　处：《模糊系统与数学》2003年第4期40-47,共8页Fuzzy Systems and Mathematics

摘　　要：研究连续值域信息系统的规则提取和知识约简 ,给出规则提取的完整方法和 2种新的知识约简的概念 ,讨论各种协调集之间的关系 ,探讨系统允许误差变化对规则提取的影响。This paper focuses on the acquisition of the decision rule and two new ways of defining knowledge reduction on continuous condition attributes in information system. The method of decision rule acquisition are fully introduced and adequately illustrated. The new concept of knowledge reduction is presented, and the relationship between each kind of consistent sets is discussed. At the end of this paper, the influence of the variance of δ on the decision rule acquisition is showed.

关 键 词：连续值域信息系统 规则提取 知识约简 协调集 粗糙集 

分 类 号：TP18[自动化与计算机技术—控制理论与控制工程] O159[自动化与计算机技术—控制科学与工程]