Temporal Aggregates in OWL-Time
نویسندگان
چکیده
In this paper, we describe our approach for representing temporal aggregates in OWL-Time, and a systematic way of mapping iCalendar recurrence sets to OWL-Time temporal sequences. We present several examples of natural language expressions for temporal aggregates and how they would be represented in OWL-Time; some examples can be described in both iCalendar and OWL-Time, while others can only be represented in OWL-Time. We also illustrate how we can translate from a natural language sentence to our representation.
منابع مشابه
A Temporal Aggregates Ontology in OWL for the Semantic Web
In this paper we describe our approach for representing temporal aggregates in OWL, as an extension to the initial version of the OWL-Time, a temporal ontology for describing the temporal content of Web pages and the temporal properties of Web services. We represent the temporal aggregates ontology in both first-order logic axioms and OWL encodings. We also present several examples in detail to...
متن کاملContext-aware Modeling for Spatio-temporal Data Transmitted from a Wireless Body Sensor Network
Context-aware systems must be interoperable and work across different platforms at any time and in any place. Context data collected from wireless body area networks (WBAN) may be heterogeneous and imperfect, which makes their design and implementation difficult. In this research, we introduce a model which takes the dynamic nature of a context-aware system into consideration. This model is con...
متن کاملτOWL: A Framework for Managing Temporal Semantic Web Documents
The World Wide Web Consortium (W3C) OWL 2 Web Ontology Language (OWL 2) recommendation is an ontology language for the Semantic Web. It allows defining both schema (i.e., entities, axioms, and expressions) and instances (i.e., individuals) of ontologies. OWL 2 ontologies are stored as Semantic Web documents. However, OWL 2 lacks explicit support for time-varying schema or for time-varying insta...
متن کاملTime ontology extended for non-Gregorian calendar applications
We have extended OWL-Time to support the encoding of temporal position in a range of reference systems, in addition to the Gregorian calendar and conventional clock. Two alternative implementations are provided: as a pure extension or OWL-Time, or as a replacement, both of which preserve the same representation for the cases originally supported by OWL-Time. The combination of the generalized t...
متن کاملτOWL: A Framework for Managing Temporal Semantic Web Documents Supporting Temporal Schema Versioning
The OWL 2 Web Ontology Language allows defining both schema and instances of ontologies for Semantic Web applications, but lacks explicit support for time-varying ontologies. Hence, knowledge engineers or maintainers of Semantic Web documents have to use ad hoc techniques in order to specify an OWL 2 schema for time-varying instances and to cope with its temporal evolution. In this paper, for a...
متن کامل