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Qualitative Spatial Configuration Search

机译:定性空间配置搜索

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摘要

Current Geographic Information Systems (gis) lack, to a large extent, support for spatial searches in which a user wants to find a configuration of objects described in qualitative terms. At the database level, these searches can be supported by providing new spatial operators that can capture the semantics of the qualitative spatial relations used in the description and by developing resolution strategies tailored for queries including these operators. We suggest a technical approach to include an open number of qualitative spatial relations in gis and discuss a processing workflow leading from a qualitative spatial description to a database query and to the search result. We present and empirically evaluate a resolution strategy for these queries that is based on hypergraph matching and that exploits their semantic and structural characteristics. Finally, we envision some realizations of these searches and discuss challenges that relate to the cognitive aspect.
机译:当前的地理信息系统(gis)在很大程度上缺乏对空间搜索的支持,在这种空间搜索中,用户希望找到以定性术语描述的对象的配置。在数据库级别,可以通过提供新的空间运算符(可以捕获描述中使用的定性空间关系的语义)以及开发针对包括这些运算符的查询量身定制的解析策略来支持这些搜索。我们建议一种技术方法,在gis中包括开放数量的定性空间关系,并讨论从定性空间描述到数据库查询和搜索结果的处理工作流程。我们提出并凭经验评估这些查询的解决方案策略,该策略基于超图匹配,并利用其语义和结构特征。最后,我们设想了这些搜索的一些实现,并讨论了与认知方面有关的挑战。

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