南京大学学报(自然科学版) ›› 2012, Vol. 48 ›› Issue (1): 8490.
朱娟1.2**,吉根林1.2
Zhu .Juan1’2,Ji Gen一Lin1.2
摘要: 提出了两种基于相邻关系的地理标识语言空间线对象离群检测算法:DOL一ARl和DOL AR2,定义了基于相邻关系的空间线对象之间的相异度,DOL-ARl将基于相邻关系的相异度作为空间
线对象之I司的距离度量准则,利用Density-based Spatial Clustering of Applications with Noise算法检测出离群的空间线对象.算法DOL一AR2以基于相邻关系的相异度为准则对空间线对象进行聚类,根据每
个簇的离群因子,检测该簇是否离群.实验结果表明,算法DOL ARl和算法DOL AR2都能有效地检测出离群的线对象,本文对提出的两种离群检测算法的性能讲行了比较,发现算法DOL AR2的效率要
高于算法DOL AR1的效率.
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