| 基于粗糙集与模糊集的连续值域决策表的离散化算法 |
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| 引用本文： | 刘文军,郭庆.基于粗糙集与模糊集的连续值域决策表的离散化算法[J].模糊系统与数学,2011,25(3). |
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| 作者姓名： | 刘文军 郭庆 |
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| 作者单位： | 1. 长沙理工大学数计学院,湖南长沙,410076
2. 合肥工业大学数学学院,安徽合肥,230009 |
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| 基金项目： | 国家自然科学基金资助项目(10701018); 湖南省科技厅资助项目(2010FJ4136); 湖南省教育厅资助项目(10c0403) |
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| 摘 要： | 将粗糙集理论与模糊集理论结合起来,给出一种连续值域决策表的离散化算法。该算法从已知数据的初始决策系统出发,首先构造对像的相似矩阵,然后根据相似矩阵的传递闭包及粗糙集正域的思想得出决策表的条件类,再根据条件类将连续值决策表化为区间值决策表,最后根据各区间值将连续值域决策表化为离散决策表。
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| 关 键 词： | 粗糙集 模糊集 离散化 区间值 |
An Attribute Discretization Algorithm Based on Rough Sets and Fuzzy Sets |
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| LIU Wen-jun,GUO Qing.An Attribute Discretization Algorithm Based on Rough Sets and Fuzzy Sets[J].Fuzzy Systems and Mathematics,2011,25(3). |
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| Authors: | LIU Wen-jun GUO Qing |
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| Institution: | LIU Wen-jun1,GUO Qing2(1.Department of Mathematics and Computing Science,Changsha University of Science and Technology,Changsha 410076,China,2.School of Mathematics of HFUT,Hefei 230009,China) |
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| Abstract: | Combining rough set and fuzzy set theory,we put forward a discretization algorithm of continuous domain decision table.During this algorithm,first,we construct the similarity matrix from the original decision system;then,we get condition classes according to fuzzy clustering;third,we obtain interval value decision table from the condition classes;at last,we turn interval value decision table into discretization decision table. |
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| Keywords: | Rough Sets Fuzzy Sets Discretization Interval Value |
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