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	Evaluating road selectivity of urban-trip based on dynamic betweenness centrality
	Zhou Liang(周亮) ; Lu Feng ; Zhang Hengcai
	2012
会议名称	Proceedings - 2012 20th International Conference on Geoinformatics, Geoinformatics 2012
会议日期	2012
会议地点	Hong Kong, China
关键词	Roads and streets Efficiency Graph theory Information services Betweenness centrality Different time windows Evaluation Method Evaluation results Hierarchical criteria Hierarchical spatial reasoning ON dynamics Path finding Path queries road selectivity evaluation Travel efficiency Urban road Urban road networks
通讯作者	Zhou, L
英文摘要	Improving both of the efficiency and reasonableness of path query are the key aspects in public travel information service research. Hierarchical spatial reasoning can solve the efficiency problem, but it cannot guarantee the reasonableness. As we know, road travel efficiency varies at different positions in the urban road network and the reasonableness of path query has close relation to the road selectivity. Since static road evaluation methods used in the past are not suitable in public travel information service, we propose an approach to evaluate road selectivity based on the betweenness centrality calculation in graph theory. By using this approach, we estimate the urban road travel efficiency in dynamic urban road environment that can reveal the traffic smoothness and connectivity at different time windows. The empirical results show that this approach can overcome the limitation caused by data boundaries. Besides, the hierarchical characteristics presented by selectivity evaluation results can be used as a hierarchical criterion in the hierarchical spatial reasoning (HSR) algorithm to improve the reasonableness of the path query result.
收录类别	EI
会议主办者	IEEE Geoscience and Remote Sensing Society (GRSS); Chin. Acad. Sci., State Key Lab. Resour. Environ. Inf. Syst.; Wuhan Univ., State Key Lab. Inf. Eng. Surv. Map Remote Sens.; Chin. Acad. Sci., Cent. Earth Obs. Digit. Earth; Beijing Normal Univ., Coll. Global Change Earth Syst. Sci.
会议录出版者	IEEE Computer Society
会议录出版地	2001 L Street N.W., Suite 700, Washington, DC 20036-4928, United States
ISBN号	9781467311045
内容类型	会议论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/27792]
专题	地理科学与资源研究所_研究生部
推荐引用方式 GB/T 7714	Zhou Liang,Lu Feng,Zhang Hengcai. Evaluating road selectivity of urban-trip based on dynamic betweenness centrality[C]. 见:Proceedings - 2012 20th International Conference on Geoinformatics, Geoinformatics 2012. Hong Kong, China. 2012.

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