OWL Time

See: OWL, Semantic Web, Mark-Up Language.

References

(Hobbs, 2019) ⇒ Jerry R. Hobbs (2019) ⇒ http://www.isi.edu/~hobbs/owl-time.html Retrieved: 2019-05-03.
- QUOTE: OWL-Time is an ontology for describing the temporal content of Web pages and the temporal properties of Web Services.

(W3C, 2017) ⇒ https://www.w3.org/TR/owl-time/
- QUOTE: Knowledge of the temporal relationships between transactions, events, travel and orders is often critical. OWL-Time has been developed in response to this need, for describing the temporal properties of any resource denoted using a web identifier (URI), including web-pages and real-world things if desired. It focusses particularly on temporal ordering relationships. While these are implicit in all temporal descriptions, OWL-Time provides specific predicates to support, or to make explicit the results of, reasoning over the order or sequence of temporal entities.

(Pan & Hobbs, 2005) ⇒ Feng Pan, and Jerry R. Hobbs (2005, May). "Temporal Aggregates in OWL-Time". In FLAIRS conference (Vol. 5, pp. 560-565).
- QUOTE: OWL-Time (formerly DAML-Time, Hobbs and Pan 2004) is an ontology of temporal concepts for describing the temporal content of Web pages and the temporal properties of Web services. The initial version of the ontology axiomatized the topological aspects of time, measures of duration, and the clock and calendar. We have now extended it to cover temporal aggregates as well, and this paper describes that work.

(Pan, 2005) ⇒ Feng Pan. (2005). "A Temporal Aggregates Ontology in OWL for the Semantic Web". In Proceedings of the AAAI Fall Symposium on Agents and the Semantic Web, Arlington, Virginia, 2005.
- QUOTE: The most basic temporal concepts in the ontology are Instant, Interval, Instant Event, and Interval Event. Instants are, intuitively, point-like in that they have no interior points, and intervals are, intuitively, things with extent. Instant events are events that are instantaneous, for example, the arrival of a package, and interval events are events that span some time interval, for example, a meeting from 2pm to 3pm.
  Besides these four basic temporal concepts, there are five other more general temporal concepts/classes: Temporal Thing, Temporal Entity, Instant Thing, Interval Thing, and Event. The subclass hierarchy of these temporal concepts/classes is shown in the Figure 1. The arcs denote the (super) class has only those subclasses, for example, Instant Thing has only two subclasses: Instant and Instant Event.
  Figure 1: Subclass hierarchy of temporal concepts.

(Hobbs & Pan, 2004) ⇒ Jerry R. Hobbs and Feng Pan. (2004). "An Ontology of Time for the Semantic Web". ACM Transactions on Asian Language Processing (TALIP): Special issue on Temporal Information Processing, Vol. 3, No. 1, March 2004, pp. 66-85.
- QUOTE: The DARPA Agent Markup Language (DAML) project is DARPA’s effort to bring into reality the semantic Web, in which Web users and automatic agents will be able to access information on the Web via descriptions of the content and capabilities of Web resources rather than keywords. An important part of this effort is the development of representative ontologies of the most commonly used domains. We have developed such an ontology of temporal concepts for describing the temporal content of Web pages and the temporal properties of Web services. This effort has been informed by temporal ontologies developed at a number of sites; it is intended to capture the essential features of all of them and make them easily available to a large group of Web developers and users, embedded in the ontology mark-up language OWL.