| 基于粗集理论的决策表核计算方法 |
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| 引用本文： | 黄志伟,冯林,罗芬.基于粗集理论的决策表核计算方法[J].计算机工程与设计,2006,27(22):4340-4342. |
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| 作者姓名： | 黄志伟 冯林 罗芬 |
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| 作者单位： | 四川师范大学,工程技术系,四川,成都,610072 |
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| 摘 要： | 决策表信息系统核属性的计算是粗集理论中的一个重要问题。从知识约简及核属性的定义出发，详细分析了文献5]中的方法用于不相容决策信息系统中产生错误原因，并提出了一个新的基于等价类运算计算核属性的方法，该方法的优点在于同时适用相容决策表及不相容决策表核计算，且计算核属性不需要生成分明矩阵的中间步骤，最后证明了这种方法的有效性。
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| 关 键 词： | 粗集 决策表信息系统 分明矩阵 核 知识约简 |
| 文章编号： | 1000-7024（2006）22-4340-03 |
| 收稿时间： | 2005-09-27 |
| 修稿时间： | 2005-09-27 |
Calculation method of core in decision table based on rough sets theory |
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| HUANG Zhi-wei,FENG Lin,LUO Fen.Calculation method of core in decision table based on rough sets theory[J].Computer Engineering and Design,2006,27(22):4340-4342. |
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| Authors: | HUANG Zhi-wei FENG Lin LUO Fen |
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| Affiliation: | Department of Engineering and Technology, Sichuan Normal University, Chengdu 610072, China |
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| Abstract: | The core plays an important role in attributes reduction of decision information system based on rough sets.From knowledge reduction and core definition,cause of incorrectness which the method of calculating core used in inconsistence decision system in lite-rature5] isanalyzed in detail.A model of calculating core attributes is proposed in decision table information system based on equivalence classes operation.The advantage of this modelisthat core calculating don't need builddiscernible matrix.The correctness of this method is proved. |
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| Keywords: | rough sets decision table information system discernible matrix core knowledge reduction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
