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首页> 外文期刊>Journal on Data Semantics >The datAcron Ontology for the Specification of Semantic Trajectories Specification of Semantic Trajectories for Data Transformations Supporting Visual Analytics
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The datAcron Ontology for the Specification of Semantic Trajectories Specification of Semantic Trajectories for Data Transformations Supporting Visual Analytics

机译:datAcron本体,用于语义轨迹规范,用于支持可视化分析的数据转换的语义轨迹规范

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摘要

As the number of moving objects increases, the challenges for achieving operational goals w.r.t. the mobility in many domains that are critical to economy and safety emerge dramatically. In domains such as air traffic management, this dictates a shift of operations' paradigm from location based, as it is today, to trajectory based, where trajectories are turned into "first-class citizens". Additionally, the increasing amount of data from heterogenous and disparate data sources implies the need for advanced analysis methods that require exploiting spatio-temporal mobility data in appropriate forms and at varying levels of abstraction. All these call for an in-principle way for organising integrated views of mobility data, with trajectories playing the main role. In this paper, we propose an ontology for modelling semantic trajectories, integrating spatio-temporal information regarding mobility of objects, at multiple, interlinked levels of abstraction. Our work builds upon a comprehensive framework that identifies fundamental spatio-temporal data types and specific conversions among these types. We validate the ontological specifications towards satisfying the needs of visual analysis tasks in the complex air traffic management domain, using real-world data.
机译:随着移动物体数量的增加,实现操作目标的挑战越来越严重。在对经济和安全至关重要的许多领域中,流动性急剧上升。在诸如空中交通管理之类的领域中,这决定了运营范式从今天的位置转移到基于轨迹的转变,在这种情况下,轨迹被转变为“头等公民”。此外,来自异构数据和异构数据源的数据量不断增加,这意味着需要先进的分析方法,这些方法需要以适当的形式和不同的抽象水平来利用时空迁移数据。所有这些都要求以一种原则性的方式来组织移动性数据的集成视图,而轨迹起着主要作用。在本文中,我们提出了一种用于语义轨迹建模的本体,该本体在多个相互关联的抽象级别上集成了有关对象移动性的时空信息。我们的工作建立在一个全面的框架之上,该框架可以识别基本的时空数据类型以及这些类型之间的特定转换。我们使用实际数据验证本体规范,以满足复杂空中交通管理领域中可视化分析任务的需求。

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