| 基于扩展决策函数的信息系统的属性分解 |
| |
| 引用本文： | 胡小建,杨善林.基于扩展决策函数的信息系统的属性分解[J].合肥工业大学学报(自然科学版),2004,27(7):730-733. |
| |
| 作者姓名： | 胡小建 杨善林 |
| |
| 作者单位： | 合肥工业大学,材料科学与工程学院,安徽,合肥,230009;合肥工业大学,管理学院,安徽,合肥,230009 |
| |
| 基金项目： | 国家自然科学基金资助项目(70171033) |
| |
| 摘 要： | 信息系统是一个二元组,包括个体论域和属性集。对信息系统进行属性分解的目的是使分解的子信息系统能方便地利用RoughSet等工具进行处理;用子信息系统知识单元存储而用于局部推理;同时降低系统推理的复杂性。针对这一问题提出了一个基于GDF(扩展决策函数)的信息系统属性分解判据,提出并证明了信息系统属性分解性质。最后通过示例验证了所提出的方法。
|
| 关 键 词： | 信息系统 扩展决策函数 属性分解 |
| 文章编号： | 1003-5060(2004)07-0730-04 |
| 修稿时间： | 2003年9月11日 |
Attribute decomposition of information system based on generalized decision function |
| |
| HU Xiao-jian,YANG Shan-lin.Attribute decomposition of information system based on generalized decision function[J].Journal of Hefei University of Technology(Natural Science),2004,27(7):730-733. |
| |
| Authors: | HU Xiao-jian YANG Shan-lin |
| |
| Institution: | HU Xiao-jian~1,YANG Shan-lin~2 |
| |
| Abstract: | The information system consists of object domains and attributes set. The purpose of attributes decomposition of information system is to make the decomposed sub-information system be dealt with by using such tool as Rough Set and to store knowledge with the sub-information system which can be used for local reasoning, and at the same time to reduce the complexity of system reasoning. In this paper,the criterion of attribute decomposition of the information system is put forward based on the generalized decision function(GDF),and the attribute decomposition features are proved. The feasibility of the presented method is verified with an example. |
| |
| Keywords: | information system generalized decision function attribute decomposition |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
