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SOWL QL: Querying Spatio-Temporal Ontologies in OWL

机译：SOWL QL：查询OWL中的时空本体

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摘要

We introduce SOWL QL, a query language for spatio-temporal information in ontologies. Building-upon SOWL (Spatio-Temporal OWL), an ontology for handling spatio-temporal information in OWL, SOWL QL supports querying over qualitative spatio-temporal information (expressed using natural language expressions such as "before", "after", "north of", "south of) rather than merely quantitative information (exact dates, times, locations). SOWL QL extends SPARQL with a powerful set of temporal and spatial operators, including temporal Allen topological, spatial directional and topological operations or combinations of the above. SOWL QL maintains simplicity of expression, and also upward and downward compatibility with SPARQL. Query translation in SOWL QL yields SPARQL queries, implying that querying spatio-temporal ontologies using SPARQL is still feasible but suffers from several drawbacks, the most important of them being that, queries in SPARQL become particularly complicated and users must be familiar with the underlying spatio-temporal representation (the "N-ary relations" or the "4D-fluents" approach in this work). Finally, querying in SOWL QL is supported by the SOWL reasoner which is not part of the standard SPARQL translation. The run-time performance of SOWL QL has been assessed experimentally in a real data setting. A critical analysis of its performance is also presented.
机译：我们介绍SOWL QL，一种用于本体中时空信息的查询语言。建立在SOWL（时空OWL）上，一种用于处理OWL中的时空信息的本体，SOWL QL支持对定性时空信息进行查询（使用自然语言表达式表示，例如“ before”，“ after”，“ north” SOWL QL扩展了SPARQL，提供了一组强大的时间和空间运算符，包括时间艾伦拓扑，空间方向和拓扑运算或上述各项的组合SOWL QL保持表达的简单性，并与SPARQL向上和向下兼容。SOWL QL中的查询翻译产生SPARQL查询，这意味着使用SPARQL查询时空本体仍然可行，但存在一些缺点，其中最重要的是这样，SPARQL中的查询就变得特别复杂，用户必须熟悉基本的时空表示形式（“ N元关系” r这项工作中的“ 4D流利”方法）。最后，SOWL推理程序支持SOWL QL中的查询，这不是标准SPARQL转换的一部分。 SOWL QL的运行时性能已通过实际数据设置进行了实验评估。还介绍了其性能的关键分析。

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  • 来源
    《Journal on Data Semantics》 |2016年第4期|249-269|共21页
  • 作者

    Konstantinos Stravoskoufos; Euripides G. M. Petrakis; Nikolaos Mainas; Sotirios Batsakis; Vasilis Samoladas;

  • 作者单位

    School of Electronic and Computer Engineering, Technical University of Crete (TUC), Chania, Greece;

    School of Electronic and Computer Engineering, Technical University of Crete (TUC), Chania, Greece;

    School of Electronic and Computer Engineering, Technical University of Crete (TUC), Chania, Greece;

    School of Electronic and Computer Engineering, Technical University of Crete (TUC), Chania, Greece,Department of Informatics, School of Computing and Engineering, University of Huddersfield, Queensgate, Huddersfiled, UK;

    School of Electronic and Computer Engineering, Technical University of Crete (TUC), Chania, Greece;

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  • 正文语种 eng
  • 中图分类
  • 关键词

    Query language; Spatio-temporal ontology;

    机译：查询语言;时空本体;

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