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	Path reconstruction based on natural language and the uncertainty problems
	Liu, Y ; Gao, Y ; Gao, ZJ ; Wang, XM
	2004
关键词	natural language representation of path path reconstruction uncertainty
英文摘要	It is an important research issue to build systems supporting natural language comprehension in social geographic information service. In this paper, representation of a path in natural language (NLRP) is discussed. Based on the syntax model of NLRP, an algorithm named PRA (path reconstruction algorithm) used for generating linear path according to the reference map and NLRP expression is described. Inevitably, a NLRP expression contains some uncertainties, which mainly come from the spatial cognition process and imprecise expression. The uncertainties of NLRP include uncertainties of direction, distance and topologic relationship. They make the NLRP expression ambiguous and bring some problems to PRA. The solution is also discussed.; Geosciences, Multidisciplinary; Instruments & Instrumentation; Remote Sensing; Imaging Science & Photographic Technology; CPCI-S(ISTP); 0
语种	英语
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/312133]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Liu, Y,Gao, Y,Gao, ZJ,et al. Path reconstruction based on natural language and the uncertainty problems. 2004-01-01.

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