| 程度与精度的逻辑差粗糙集模型 |
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| 引用本文： | 张贤勇,熊方,莫智文,程伟.程度与精度的逻辑差粗糙集模型[J].电子科技大学学报(社会科学版),2010(5). |
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| 作者姓名： | 张贤勇 熊方 莫智文 程伟 |
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| 作者单位： | 四川师范大学数学与软件科学学院;四川天一学院信息工程系;电子科技大学计算机科学与工程学院; |
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| 基金项目： | 国家自然科学基金(11071178);国家自然科学基金青年科学基金(60803028); 四川省科技支撑计划项目(09ZC1838); 四川省青年科技基金(07ZQ026114); 四川师范大学科学研究基金(08KYL06)的资助 |
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| 摘 要： | 基于程度与精度的逻辑差需求,提出了程度与精度的逻辑差粗糙集模型,并定义了粗糙集区域概念。通过变精度近似与程度近似的转化公式,得到了粗糙集区域的基本结构,提出了计算粗糙集区域的常规算法和结构算法,进行了算法分析与比较,探索并得到了模型在决策表中的应用方向。通过该模型拓展了程度粗糙集模型和经典粗糙集模型。
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| 关 键 词： | 人工智能 程度 程度粗糙集 逻辑差 精度 粗糙集理论 结构算法 变精度粗糙集 |
Rough Set Model of Logical Difference Operation of Grade and Precision |
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| ZHANG Xian-yong,XIONG Fang,MO Zhi-wen, CHENG Wei.Rough Set Model of Logical Difference Operation of Grade and Precision[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2010(5). |
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| Authors: | ZHANG Xian-yong XIONG Fang MO Zhi-wen CHENG Wei |
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| Institution: | ZHANG Xian-yong1,XIONG Fang2,MO Zhi-wen1,, CHENG Wei3 (1.College of Mathematics , Software Science,Sichuan Normal University Chengdu 610068,2.Department of Information Engineering,Sichuan Tianyi University Chengdu 610100,3.School of Computer Science , Engineering,University of Electronic Science , Technology of China Chengdu 611731) |
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| Abstract: | This paper proposes a rough set model of logical difference operation of grade and precision,and defines the concepts of rough set regions.In the new model,basic structure of rough set regions is obtained by transformation formulas between variable precision approximations and graded approximations.Regular algorithm and structural algorithm are proposed and analyzed to calculate rough set regions,and application prospect of the new model in decision table is explored and obtained.The new model has extended ... |
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| Keywords: | artificial intelligence grade graded rough set logical difference precision rough set theory structural algorithm variable precision rough set |
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