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arXiv 1206.0217cs.DB
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有效的空间数据库挖掘技术

Efficient techniques for mining spatial databases

Mohamed A. El-Zawawy

摘要:

聚类是数据采掘的主要任务之一。近几年来,空间数据的聚类得到了广泛的研究.空间数据库是许多高级信息系统的组成部分,如地理信息系统超大规模集成电路设计系统。在这篇论文中,我们介绍了几种有效的空间数据聚类算法。首先,我们提出了一个基于网格的聚类算法,具有几个优点和性能相媲美的著名的高效聚类算法。该算法有几个优点。该算法不需要很多输入参数。它只需要三个参数,数据空间中的点的数量,网格中的单元格的数量和百分比。网格中单元的数量反映了算法应达到的精度。该算法能够发现任意形状的簇。该算法的计算复杂性与最有效的聚类算法的复杂性相当。该算法已被实施和测试对不同范围的数据库大小。性能结果表明,该算法的运行时间优于最知名的算法(CRANANS [23])。实验结果还表明,该算法的性能不随数据点数目的增加而降低。

英文摘要:

Clustering is one of the major tasks in data mining. In the last few years, Clustering of spatial data has received a lot of research attention. Spatial databases are components of many advanced information systems like geographic information systems VLSI design systems. In this thesis, we introduce several efficient algorithms for clustering spatial data. First, we present a grid-based clustering algorithm that has several advantages and comparable performance to the well known efficient clustering algorithm. The algorithm has several advantages. The algorithm does not require many input parameters. It requires only three parameters, the number of the points in the data space, the number of the cells in the grid and a percentage. The number of the cells in the grid reflects the accuracy that should be achieved by the algorithm. The algorithm is capable of discovering clusters of arbitrary shapes. The computational complexity of the algorithm is comparable to the complexity of the most efficient clustering algorithm. The algorithm has been implemented and tested against different ranges of database sizes. The performance results show that the running time of the algorithm is superior to the most well known algorithms (CLARANS [23]). The results show also that the performance of the algorithm do not degrade as the number of the data points increases.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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