Milea Viorel, Frasincar Flavius, Kaymak Uzay
Econometric Institute, Erasmus School of Economics, Erasmus University Rotterdam, 3000 DR Rotterdam, The Netherlands.
IEEE Trans Syst Man Cybern B Cybern. 2012 Feb;42(1):268-81. doi: 10.1109/TSMCB.2011.2162582. Epub 2011 Aug 30.
Through its interoperability and reasoning capabilities, the Semantic Web opens a realm of possibilities for developing intelligent systems on the Web. The Web Ontology Language (OWL) is the most expressive standard language for modeling ontologies, the cornerstone of the Semantic Web. However, up until now, no standard way of expressing time and time-dependent information in OWL has been provided. In this paper, we present a temporal extension of the very expressive fragment SHIN(D) of the OWL Description Logic language, resulting in the temporal OWL language. Through a layered approach, we introduce three extensions: 1) concrete domains, which allow the representation of restrictions using concrete domain binary predicates; 2) temporal representation , which introduces time points, relations between time points, intervals, and Allen's 13 interval relations into the language; and 3) timeslices/fluents, which implement a perdurantist view on individuals and allow for the representation of complex temporal aspects, such as process state transitions. We illustrate the expressiveness of the newly introduced language by using an example from the financial domain.
语义网凭借其互操作性和推理能力，为在网络上开发智能系统开辟了一个充满可能性的领域。网络本体语言（OWL）是用于对本体进行建模的最具表现力的标准语言，而本体是语义网的基石。然而，到目前为止，尚未提供在OWL中表达时间和与时间相关信息的标准方法。在本文中，我们提出了OWL描述逻辑语言中极具表现力的片段SHIN(D)的时态扩展，从而产生了时态OWL语言。通过分层方法，我们引入了三个扩展：1）具体域，它允许使用具体域二元谓词来表示限制；2）时态表示，它将时间点、时间点之间的关系、时间间隔以及艾伦的13种间隔关系引入该语言；3）时间片/流，它对个体实现了一种延续论观点，并允许表示复杂的时态方面，如过程状态转换。我们通过一个金融领域的例子来说明新引入语言的表现力。
