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	On internal cardinal direction relations
	Liu, Yu ; Wang, Xiaoming ; Jin, Xin ; Wu, Lun
	2005
英文摘要	Internal Cardinal Direction (ICD) relations can be considered as the refinement to the contains/within topological relation. It is widely used to describe the position of an object in a region. In this paper, three ICD models with varying degrees of details are presented - ICD-5, ICD-9 and ICD-13. In each of these, the notion of a 'middle part' is defined using Minimum Bounding Rectangles (MBR). Then focusing on ICD-9, three representation methods are discussed. They are major portion, point set of intersections and proportions of intersections respectively. The ICD-9 model is validated by a cognitive experiment, which helped to determine the size of the middle part in ICD-9 and validate the MBR-based partition method. Based on a psychological theory about vague predicates, conceptual neighborhood and intersection of ICD relations are also discussed briefly. ? Springer-Verlag Berlin Heidelberg 2005.; EI; 0
语种	英语
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/328278]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Liu, Yu,Wang, Xiaoming,Jin, Xin,et al. On internal cardinal direction relations. 2005-01-01.

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