摘要
信息系统的不断发展直接促进了信息系统基础理论的研究 .本文从数学模型的角度出发对信息系统的基础理论进行了探讨 .首先 ,文中给出了基于集合论的信息系统的数学模型 ;然后就信息系统中信息和属性的完备性和冗余程度两个方面进行了讨论 .在介绍了最大的信息系统、可选的信息系统和最简信息系统的定义后 ,本文提出了理想信息系统的概念 ;并针对信息系统中信息的不确定性问题 。
The continuous development of information system(IS)has advanced the research of the basic theory directly. From the point of view of mathematical model, the basic theory of IS is discussed in this paper. Firstly, the mathematical model of IS based on set theory is provided. Then perfectibility and redundancy of information and attributes in IS are discussed. On the basis of the concepts of maximal IS, optional IS and simplest IS, perfect IS is defined, and uncertain IS is introduced considering the uncertainty of information in IS.
出处
《小型微型计算机系统》
CSCD
北大核心
2001年第9期1117-1120,共4页
Journal of Chinese Computer Systems
关键词
信息系统
数学模型
信息量
属性
信息处理
Maximal information system
Optional information system
Simplest information system
Perfect information system
Uncertain information system
