| 粗糙集理论中决策表属性约简的信息量表示 |
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| 引用本文： | 林镇飚,桂现才.粗糙集理论中决策表属性约简的信息量表示[J].广西师范学院学报(自然科学版),2005,22(2):35-38. |
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| 作者姓名： | 林镇飚 桂现才 |
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| 作者单位： | 湛江师范学院,教育技术部,广东,湛江,524048;湛江师范学院,数学与计算科学学院,广东,湛江,524048 |
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| 摘 要： | 主要讨论了决策表属性约简和信息量之间的关系，证明了对于一致决策表，其属性约简在代数表示和信息论中信息量表示下是等价的．并举例说明，对于不一致决策表，其属性的约简不能用信息量来等价表示．
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| 关 键 词： | 粗糙集 决策表 信息量 条件信息量 属性约简 |
| 文章编号： | 1002-8743(2005)02-0035-04 |
| 修稿时间： | 2005年3月25日 |
Information Representation for Attribute Reduction of Decision Tables in Rough Set Theory |
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| LIN Zhen-biao,GUI Xian-cai.Information Representation for Attribute Reduction of Decision Tables in Rough Set Theory[J].Journal of Guangxi Teachers Education University:Natural Science Edition,2005,22(2):35-38. |
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| Authors: | LIN Zhen-biao GUI Xian-cai |
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| Abstract: | In this paper, relationships between attribute reduction of decision tables and information quantity have been mainly discussed. In a consistent decision table, the euqivalence properties between algebraic representation and information quantity representation of attribute reduction are proved. Through examples, it shows that attribute reduction of an inconsistent decision table cannot entirely be represented by information quantity. |
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| Keywords: | rough set decision table information quantity conditional information quantity attribute reduction |
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