| 知识的粒度计算及其应用 |
| |
| 引用本文： | 苗夺谦,范世栋.知识的粒度计算及其应用[J].系统工程理论与实践,2002,22(1):48-56. |
| |
| 作者姓名： | 苗夺谦 范世栋 |
| |
| 作者单位： | 山西大学数学系 |
| |
| 基金项目： | 国家自然科学基金 ( 6 0 1 75 0 1 6 ,6 980 5 0 0 4 )，山西省自然科学基金 ( 2 0 0 0 1 0 0 1) |
| |
| 摘 要： | 粗糙集理论是一种较新的软计算方法 ,可以有效地分析和处理不完备信息 .本文介绍了知识的粒度、属性的重要度及协调度等概念及计算方法 ,并给出属性的重要度在求属性集的最小约简、协调度在构造决策树方面的具体步骤 .最后 ,通过几个例子说明了这些概念和方法的有效性.
|
| 关 键 词： | 粒度 重要度 协调度 |
| 文章编号： | 1000-6788(2002)01-0048-09 |
| 修稿时间： | 2000年4月28日 |
The Calculation of Knowledge Granulation and Its Application |
| |
| MIAO Duo-qian,FAN Shi-dong.The Calculation of Knowledge Granulation and Its Application[J].Systems Engineering —Theory & Practice,2002,22(1):48-56. |
| |
| Authors: | MIAO Duo-qian FAN Shi-dong |
| |
| Institution: | Department of Mathematics,Shanxi University |
| |
| Abstract: | Rough sets theory is a relatively new soft computing tool to deal with vagueness and uncertainty.In this paper, we introduce the concept of knowledge granulation, the importance and the consistency of attribute and their computational methods. Also, we give concrete steps through which the least reduction of attribute-set is got using its importance and decision-making tree by its consistency. Finally, their validity is shown through a few examples. . |
| |
| Keywords: | granulation importance consistency |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《系统工程理论与实践》浏览原始摘要信息 |
| 点击此处可从《系统工程理论与实践》下载免费的PDF全文 |
