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| Rough集之间的相似度量 | |
| 引用本文： | 徐久成,沈钧毅,王国胤.Rough集之间的相似度量[J].计算机科学,2003,30(10):55-57. |
| 作者姓名： | 徐久成 沈钧毅 王国胤 |
| 作者单位： | 1. 西安交通大学电信学院软件所,西安,710049;河南师范大学计算机科学与技术系,新乡,453002 2. 西安交通大学电信学院软件所,西安,710049 3. 重庆邮电学院计算机科学与技术研究所,重庆,400065 |
| 基金项目： | 国家自然科学基金(69803014)，国家科技部攀登——特别支持费，教育部骨干教师资助计划(GG-520-10617-1001)，教育部留学回国人员科研启动基金，重庆市应用基础研究基金，信息产业部计算机网络与通信技术重点实验室研究基金 |
| 摘 要： | Applications of rough set theory in incomplete information systems are a key of putting rough set into real applications. In this paper, after analyzing some basic concepts of classical rough set theory and extended rough set theory, the measure of similarity is developed between two rough sets in the classical rough set theory based on indiscernibility relation and between two rough sets in the extended rough set theory based on limited tolerance relation. Then,some properties of these two methods for measuring similarity are developed respectively. At last,these two measure methods of rough set theory are compared. |
| 关 键 词： | Rough集 相似度量 信息处理 知识获取 智能系统 推理 |
Measure of Similarity between Rough Sets |
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| XU Jiu-Cheng SHEN Jun-Yi WANG Guo-Yin.Measure of Similarity between Rough Sets[J].Computer Science,2003,30(10):55-57. | |
| Authors: | XU Jiu-Cheng SHEN Jun-Yi WANG Guo-Yin |
| Abstract: | Applications of rough set theory in incomplete information systems are a key of putting rough set into real applications. In this paper, after analyzing some basic concepts of classical rough set theory and extended rough set theory, the measure of similarity is developed between two rough sets in the classical rough set theory based on indiscernibility relation and between two rough sets in the extended rough set theory based on limited tolerance relation. Then, some properties of these two methods for measuring similarity are developed respectively. At last, these two measure methods of rough set theory are compared. |
| Keywords: | Rough set Indiscernibility relation Limited tolerance relation Measure of similarity |
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