基于拓扑和空间相似性的地理事件检测——以土地利用数据更新为例

发布时间：2018-04-08 19:08

本文选题：地理事件　切入点：原生事件　出处：《浙江大学学报(理学版)》2016年06期

【摘要】：地理时空对象的变化过程实质上是地理事件序列的集合,地理事件的检测是实现空间数据库自动更新的关键所在.为提高时空数据更新的自动化水平,以土地利用数据更新为例,通过对地理事件概念、特征的分析,定义了5种地理事件类型.在此基础上根据专题数据的空间拓扑约束、语义逻辑约束以及拓扑语义约束,结合空间相似度理论,提出了一种基于拓扑与空间相似性的地理事件检测方法,定义了原生事件和次生事件,并以此描述地理事件间的衍生关系.在土地利用现状管理信息系统中的应用,证明了该检测方法在土地利用数据更新过程中的可行性和有效性,为事件更新的进一步自动化奠定了基础.
[Abstract]:The changing process of geographical spatio-temporal objects is essentially a collection of geographic event sequences, and the detection of geographical events is the key to realize the automatic updating of spatial database.In order to improve the automation level of spatio-temporal data updating, five types of geographical events are defined by analyzing the concept and characteristics of geographical events, taking land use data updating as an example.Based on the spatial topology constraints, semantic logic constraints and topological semantic constraints of thematic data, a method of geographic event detection based on topology and spatial similarity is proposed, which is based on the theory of spatial similarity.The primary and secondary events are defined and the derived relationships between geographical events are described.The application of this method in the land use management information system proves the feasibility and effectiveness of this method in the process of land use data updating, which lays a foundation for the further automation of the event update.
【作者单位】：浙江大学浙江省资源与环境信息系统重点实验室;浙江大学地理信息科学研究所;
【基金】：国家自然科学基金资助项目(41471313,41671391) 国家科技基础性工作专项(2012FY112300) 海洋公益性行业科研专项经费资助项目(201505003) 浙江省科技攻关计划项目(2015C33021)
【分类号】：P208

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