| GIS信息综合中一种改进的粗集选取方法 |
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| 引用本文： | 李雯静,邱佳,吕垒.GIS信息综合中一种改进的粗集选取方法[J].武汉大学学报(信息科学版),2011(5):588-592. |
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| 作者姓名： | 李雯静 邱佳 吕垒 |
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| 作者单位： | 武汉科技大学资源与环境工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(40701158,40671154); 湖北省教育厅科学技术研究计划资助项目(Q20081109) |
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| 摘 要： | 在现有的基于粗集的GIS信息综合的基础上,针对GIS信息表的特殊性,提出了先离散化再添加决策属性的粗集计算思路,采取动态评价目标重要性并选取的方法对目标进行综合。实验表明,该离散化思路可以很好地解决GIS信息表的离散化效率问题,动态评价选取的方法不仅能综合考虑目标的空间及属性信息,而且可以保持目标综合前后空间特征的一致性。
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| 关 键 词： | GIS信息综合 粗集 动态选取 离散化 |
An Improvement Selection Method of GIS Information Generalization Based on Rough Set |
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| LI Wenjing QIU Jia LUE Lei.An Improvement Selection Method of GIS Information Generalization Based on Rough Set[J].Geomatics and Information Science of Wuhan University,2011(5):588-592. |
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| Authors: | LI Wenjing QIU Jia LUE Lei |
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| Institution: | LI Wenjing1 QIU Jia1 LUE Lei1(1 School of Resources and Environmental Engineering,Wuhan University of Science and Technology,947 Heping Road,Wuhan 430081,China) |
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| Abstract: | On the basis of the existing GIS information generalization method based on rough set,a computing idea is put forward in view of the particularity of GIS information table.Firstly,we discretize the continuous attributes by unsupervised discretization.Secondly,we add the decision attribute according to the value of conditional attributes.Thirdly,we calculate the importance of conditional attributes by attribute reduction of rough set.Lastly,we generalize the objects by dynamic assessment.The experimental res... |
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| Keywords: | GIS information generalization rough set dynamic selection discretization |
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