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| 连续值属性决策表中的可变精度粗糙集模型及属性约简 | |
| 引用本文： | 冯林,李天瑞,余志强. 连续值属性决策表中的可变精度粗糙集模型及属性约简[J]. 计算机科学, 2010, 37(9): 205-208 |
| 作者姓名： | 冯林 李天瑞 余志强 |
| 作者单位： | 1. 四川师范大学计算机科学学院,成都610101;西南交通大学信息科学与技术学院,成都610031 2. 西南交通大学信息科学与技术学院,成都,610031 3. 成都飞机工业(集团)有限责任公司,成都,610092 |
| 基金项目： | 国家自然科学基金，四川省教育厅科研基金，四川师范大学重点研究课题资助 |
| 摘 要： | 属性约简是粗糙集理论研究的一个核心问题.为了有效地处理决策表中连续值属性约简,提出了连续值属性决策表中的可变精度粗糙集模型以及基于此模型的连续值属性约简算法.仿真实验结果表明,该算法可以对连续值属性进行约简,而且比经典粗糙集相关方法在处理连续值属性约简方面更有效. |
| 关 键 词： | 粗糙集 属性约简 可变精度粗糙集 属性重要性 |
Attributes Reduction Based on the Variable Precision Rough Set in Decision Tables Containing Continuous-valued Attributes |
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| FENG Lin,LI Tian-rui,YU Zhi-qiang. Attributes Reduction Based on the Variable Precision Rough Set in Decision Tables Containing Continuous-valued Attributes[J]. Computer Science, 2010, 37(9): 205-208 | |
| Authors: | FENG Lin LI Tian-rui YU Zhi-qiang |
| Affiliation: | (College of Computer Science,Sichuan formal University,Chengdu 610101,China);(School of Information Science and Technology,Southwest Jiaotong University,Chengdu 610031,China);(Chengdu Aircraft Industrial(Group) Co. ,Ltd,Chengdu 610092,China) |
| Abstract: | Attribute reduction is one of the key problems of the rough set theory. In order to effectively use the rough set theory to deal with the problem of attribute reduction in Decision Tables containing Continuous-Valued Attributes (DTCVA) directly,a new variable precision rough set model and a heuristic algorithm for attributes reduction in DTCVA were developed. Simulation results show that the proposed approach is effective for reduction of continuous-valued attributes, and more efficient than the classical rough set approaches in processing attribute reduction in decision information systems containing continuous-valued attributes. |
| Keywords: | Rough set Attribute reduction Variable precision rough set Attributes significance |
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