| 基于拓扑关系的不确定区域方向关系推理 |
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| 引用本文： | 杜世宏,郭泺.基于拓扑关系的不确定区域方向关系推理[J].武汉大学学报(信息科学版),2010(4). |
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| 作者姓名： | 杜世宏 郭泺 |
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| 作者单位： | 北京大学遥感与地理信息系统研究所;中央民族大学生命与环境科学学院; |
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| 基金项目： | 国家教育部博士点新教师课题基金资助项目(20070001054); 国家自然科学基金资助项目(40801190); 国家863计划资助项目(2009AA12Z209) |
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| 摘 要： | 利用宽边界区域对多种来源的不确定性数据建模,用确定区域的拓扑和方向关系组合描述不确定区域的拓扑和方向关系。根据拓扑关系和方向关系间内在规律,直接从不确定区域的拓扑符号描述中推理出方向关系的符号描述,是对已有推理方法的有益补充。
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| 关 键 词： | 宽边界区域 拓扑关系 方向关系 不确定区域 空间推理 |
Deriving Direction Relations Between Uncertain Regions from Topological Relations |
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| DU Shihong GUO Luo.Deriving Direction Relations Between Uncertain Regions from Topological Relations[J].Geomatics and Information Science of Wuhan University,2010(4). |
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| Authors: | DU Shihong GUO Luo |
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| Institution: | DU Shihong1 GUO Luo2(1 Institute of Remote Sensing , GIS,Peking University,5 Yiheyuan Road,Beijing 100871,China)(2 School of Life , Environmental Science,Central University for Nationalities,27 South Zhongguancun Street,Beijing 100081,China) |
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| Abstract: | Uncertain spatial relations are fundamental to querying and handling uncertain spatial data.However,there is a lack of models and approaches about uncertain relations to satisfy the requirements of many applications.In this study,the regions with broad boundaries are adopted first to model multi-source uncertain spatial data,and then the topology and direction between crisp regions are combined to represent the topological and direction relations related to uncertain regions.Finally,a method is presented to... |
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| Keywords: | regions with broad boundaries topological relations direction relations uncertain regions spatial reasoning |
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