| 基于力学思想的空间聚类有效性评价 |
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| 引用本文： | 刘启亮,邓敏,彭东亮,王佳璆.基于力学思想的空间聚类有效性评价[J].武汉大学学报(信息科学版),2011(8):982-986,990. |
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| 作者姓名： | 刘启亮 邓敏 彭东亮 王佳璆 |
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| 作者单位： | 中南大学测绘与国土信息工程系; |
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| 基金项目： | 国家863计划资助项目(2009AA12Z206); 地理空间信息工程国家测绘局重点实验室开放研究基金资助项目(200916,201015); 江苏省资源环境信息工程重点实验室开放研究基金资助项目(JS200901); 中南大学前沿研究计划资助项目(2010QYZD002) |
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| 摘 要： | 从力学的角度来考虑空间聚类问题,并结合地理学基本规律提出了一种基于力学思想的空间聚类有效性评价指标(简称SCV)。实验分析表明,本文提出的评价指标能够更准确、高效地对二维地理空间数据的硬聚类结果进行有效性评价。
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| 关 键 词： | 空间聚类 有效性评价 力学思想 凝聚力 空间数据挖掘 |
Validity Assessment of Spatial Clustering Methods Based on Gravitational Theory |
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| LIU Qiliang DENG Min PENG Dongliang WANG Jiaqiu.Validity Assessment of Spatial Clustering Methods Based on Gravitational Theory[J].Geomatics and Information Science of Wuhan University,2011(8):982-986,990. |
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| Authors: | LIU Qiliang DENG Min PENG Dongliang WANG Jiaqiu |
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| Institution: | LIU Qiliang1 DENG Min1 PENG Dongliang1 WANG Jiaqiu1(1 Department of Surveying and Geo-informatics,Central South University,932 South Lushan Road,Changsha 410083,China) |
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| Abstract: | To overcome such limitations,the gravitational theory is firstly employed to describe the issue of spatial clustering,where a force for spatial clustering,called aggregation force,is developed.Further,a spatial clustering validity index based gravitational theory(SCV for short) is proposed.Through the experiments on both simulated data set and real-world data set,it can be found that the index developed in this paper can well evaluate the spatial hard clustering scheme including both arbitrary shape cluster... |
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| Keywords: | spatial clustering validity assessment gravitational theory aggregation force spatial data mining |
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