Topological Relations under Uncertainty in GIS Spatial Data

被引：0
作者：
Gao Jianxin [1 ]
Xia Yangling [2 ]
Chen Daxiang [3 ]
机构：
[1] Wuhan Univ Lib, Wuhan 430079, Peoples R China
[2] China Commun Construct Co CCCC Guangzhou Dredging, Guangzhou 510200, Guangdong, Peoples R China
[3] Wuhan Univ, Grad Sch, Wuhan 430072, Peoples R China
来源：
GEOINFORMATICS 2008 AND JOINT CONFERENCE ON GIS AND BUILT ENVIRONMENT: ADVANCED SPATIAL DATA MODELS AND ANALYSES, PARTS 1 AND 2 | 2009年 / 7146卷
关键词：
Geographic Information System; Spatial data; Image Segmentation; Topological Relations; Uncertainty; Inconsistency;
D O I：
10.1117/12.813129
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
Spatial relation theory is one of the hottest research topics in the GIS circle both at home and abroad. This research intends to analyze relevant research findings over the past more than a decade and latest academic development to point out major problems and inadequacy in existing researches, focusing on the topological relations and uncertainty in GIS to engage in a systematic investigation. This research discusses the present situation of the overall GIS field, the development of GIS, and features of the present development of GIS technology. It also investigates and analyzes relevant issues, such as the uncertainty in topological relations which is caused by the inaccuracy of, and uncertainty in, GIS spatial data, spatial reasoning, spatial searching, spatial-searching language, image segmentation, the theoretical development of topological relations, the trend of GIS development, and the problems in the development of GIS in the 21(st) century. The "egg-yolk model" is formulated. The "egg" is the maximum range of the fuzzy target while the "yolk" is the minimum range of the fuzzy target and the "white" is the scope of the uncertainty
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页数：8
相关论文
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