| IIS中基于限制容差关系的变精度粗糙集模型 |
| |
| 引用本文： | 曾雪兰,梅良才,陈胜,于莹莹.IIS中基于限制容差关系的变精度粗糙集模型[J].广西大学学报(自然科学版),2009,34(6). |
| |
| 作者姓名： | 曾雪兰 梅良才 陈胜 于莹莹 |
| |
| 作者单位： | 广西大学数学与信息科学学院,广西,南宁,530004 |
| |
| 基金项目： | 广西自然科学基金资助项目，广西研究生教育创新计划资助项目 |
| |
| 摘 要： | 在不完备信息系统中的限制容差关系的基础上,建立了变精度粗糙集模型,并且对其相关性质进行了分析.从构造区分函数出发,给出了求不完备信息系统近似约简的一般方法,定义了β近似约简,β近似区分函数等概念,给出了求其β近似优化决策规则的一般步骤,最后通过实例说明所提到的理论是符合客观实际的.
|
| 关 键 词： | 不完备信息系统 变精度粗糙集模型 限制容差关系 优化规则 |
A variable precision rough sets model based on limited tolerance relation in Incomplete Information Systems |
| |
| ZENG Xue-lan,MEI Liang-cai,CHEN Sheng,YU Ying-ying.A variable precision rough sets model based on limited tolerance relation in Incomplete Information Systems[J].Journal of Guangxi University(Natural Science Edition),2009,34(6). |
| |
| Authors: | ZENG Xue-lan MEI Liang-cai CHEN Sheng YU Ying-ying |
| |
| Abstract: | Based on limited tolerance relation in Incomplete Information Systems, set up a variable precision rough set model, and its properties are analyzed. From the structure, function distinguish given for incomplete information system, the general method of approximate reduction. Some concepts such as β approximate reduction ,β approximate differentiation fuction are defined, and gives its β ap-proximate optimal decision rules of the general steps. Finally illustrate its theory is accord with the objective reality. |
| |
| Keywords: | incomplete information system variable precision rough sets model limited tolerance relation optimized rule |
| 本文献已被 万方数据 等数据库收录！ |
|
