Ontology Language

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Ian Horrocks - One of the best experts on this subject based on the ideXlab platform.

  • OWL 2 Web Ontology Language Conformance (Second Edition)
    2012
    Co-Authors: Michael Smith, Matthew Horridge, Ian Horrocks, Sandro Hawke, Michael Schneider
    Abstract:

    The OWL 2 Web Ontology Language, informally OWL 2, is an Ontology Language for the Semantic Web with formally defined meaning. OWL 2 ontologies provide classes, properties, individuals, and data values and are stored as Semantic Web documents. OWL 2 ontologies can be used along with information written in RDF, and OWL 2 ontologies themselves are primarily exchanged as RDF documents. The OWL 2 Document Overview describes the overall state of OWL 2, and should be read before other OWL 2 documents. This document describes the conditions that OWL 2 tools must satisfy in order to be conformant with the Language specification. It also pr esents a common format for OWL 2 test cases that both illustrate the features of the Language and can be used for testing conformance.

  • owl 2 web Ontology Language mapping to rdf graphs
    2009
    Co-Authors: Peter F Patelschneider, Bernardo Cuenca Grau, Ian Horrocks
    Abstract:

    The OWL 2 Web Ontology Language, informally OWL 2, is an Ontology Language for the Semantic Web with formally defined meaning. OWL 2 ontologies provide classes, properties, individuals, and data values and are stored as Semantic Web documents. OWL 2 ontologies can be used along with information written in RDF, and OWL 2 ontologies themselves are primarily exchanged as RDF documents. The OWL 2 Document Overview describes the overall state of OWL 2, and should be read before other OWL 2 documents. This document defines the mapping of OWL 2 ontologies into RDF graphs, and vice versa.

  • owl 2 web Ontology Language structural specification and functional style syntax
    2008
    Co-Authors: Boris Motik, Ian Horrocks, Bijan Parsia, Peter F Patelschneider, C Bock, Achille Fokoue, Peter Haase, Rinke Hoekstra, Alan Ruttenberg, Ulrike Sattler
    Abstract:

    The OWL 2 Web Ontology Language, informally OWL 2, is an Ontology Language for the Semantic Web with formally defined meaning. OWL 2 ontologies provide classes, properties, individuals, and data values and are stored as Semantic Web documents. OWL 2 ontologies can be used along with information written in RDF, and OWL 2 ontologies themselves are primarily exchanged as RDF documents. The OWL 2 Document Overview describes the overall state of OWL 2, and should be read before other OWL 2 documents. The meaningful constructs provided by OWL 2 are defined in terms of their structure. As well, a functional-style syntax is defined for these constructs, with examples and informal descriptions. One can reason with OWL 2 ontologies under either the RDF-Based Semantics [OWL 2 RDF-Based Semantics] or the Direct Semantics [OWL 2 Direct Semantics]. If certain restrictions on OWL 2 ontologies are satisfied and the Ontology is in OWL 2 DL, reasoning under the Direct Semantics can be implemented using techniques well known in the literature.

  • D2.5.5 Next Steps for OWL
    2006
    Co-Authors: Bernardo Cuenca Grau, Peter Patel-schneider, Ian Horrocks, Bijan Parsia, Ulrike Sattler, Rob Shearer
    Abstract:

    EU-IST Network of Excellence (NoE) IST-2004-507482 KWEB Deliverable D2.5.5 (WP2.5) OWL 1.1 is a simple extension to the OWL DL species of the W3C OWL Web Ontology Language. OWL 1.1 has been designed to provide some interesting and useful expressive additions to OWL DL while retaining the desirable characteristics of OWL DL, including decidability and implementability. Keyword list: description logics, Ontology Language, RDF, OWL DL, OWL, W3C, standardization

  • OWLED - Next Steps for OWL.
    2006
    Co-Authors: Bernardo Cuenca Grau, Peter Patel-schneider, Ian Horrocks, Bijan Parsia, Ulrike Sattler
    Abstract:

    OWL 1.1 is a simple extension of the OWL DL species of the W3C OWLWeb Ontology Language. OWL 1.1 has been designed to provide some interesting and useful expressive additions to OWL DL while retaining the desirable characteristics of OWL DL, including decidability and implementability.

Kathryn B Laskey - One of the best experts on this subject based on the ideXlab platform.

  • pr owl a bayesian Ontology Language for the semantic web
    International Semantic Web Conference, 2005
    Co-Authors: Paulo C G Costa, Kathryn B Laskey
    Abstract:

    This paper addresses a major weakness of current technologies for the Semantic Web, namely the lack of a principled means to represent and reason about uncertainty. This not only hinders the realization of the original vision for the Semantic Web, but also creates a barrier to the development of new, powerful features for general knowledge applications that require proper treatment of uncertain phenomena. We present PR-OWL, a probabilistic extension to the OWL web Ontology Language that allows legacy ontologies to interoperate with newly developed probabilistic ontologies. PR-OWL moves beyond the current limitations of deterministic classical logic to a full first-order probabilistic logic. By providing a principled means of modeling uncertainty in ontologies, PR-OWL can be seen as a supporting tool for many applications that can benefit from probabilistic inference within an Ontology Language, thus representing an important step toward the W3C's vision for the Semantic Web. In order to fully present the concepts behind PR-OWL, we also cover Multi-Entity Bayesian Networks (MEBN), the Bayesian first-order logic supporting the Language, and UnBBayes-MEBN, an open source GUI and reasoner that implements PR-OWL concepts. Finally, a use case of PR-OWL probabilistic ontologies is illustrated here in order to provide a grasp of the potential of the framework.

  • URSW (LNCS Vol.) - PR-OWL: a Bayesian Ontology Language for the semantic web
    2005
    Co-Authors: Paulo C G Costa, Kathryn B Laskey
    Abstract:

    This paper addresses a major weakness of current technologies for the Semantic Web, namely the lack of a principled means to represent and reason about uncertainty. This not only hinders the realization of the original vision for the Semantic Web, but also creates a barrier to the development of new, powerful features for general knowledge applications that require proper treatment of uncertain phenomena. We present PR-OWL, a probabilistic extension to the OWL web Ontology Language that allows legacy ontologies to interoperate with newly developed probabilistic ontologies. PR-OWL moves beyond the current limitations of deterministic classical logic to a full first-order probabilistic logic. By providing a principled means of modeling uncertainty in ontologies, PR-OWL can be seen as a supporting tool for many applications that can benefit from probabilistic inference within an Ontology Language, thus representing an important step toward the W3C's vision for the Semantic Web. In order to fully present the concepts behind PR-OWL, we also cover Multi-Entity Bayesian Networks (MEBN), the Bayesian first-order logic supporting the Language, and UnBBayes-MEBN, an open source GUI and reasoner that implements PR-OWL concepts. Finally, a use case of PR-OWL probabilistic ontologies is illustrated here in order to provide a grasp of the potential of the framework.

Peter Patel-schneider - One of the best experts on this subject based on the ideXlab platform.

  • OWL Web Ontology Language XML Presentation Syntax
    2016
    Co-Authors: Masahiro Hori, Jérǒme Euzenat, Peter Patel-schneider
    Abstract:

    This document describes an XML presentation syntax and XML Schemas for OWL 1.0 subLanguages: OWL Lite, OWL DL, and OWL Full. This document has been written to meet the requirement that OWL 1.0 should have an XML serialization syntax (R15 in [OWL Requirement]). It is not intended to be a normative specification. Instead, it represents a suggestion of one possible XML presentation syntax for OWL.

  • OWL 2 Web Ontology Language Manchester Syntax (Second Edition)
    2012
    Co-Authors: Matthew Horridge, Peter Patel-schneider
    Abstract:

    The OWL 2 Web Ontology Language, informally OWL 2, is an Ontology Language for the Semantic Web with formally defined meaning. OWL 2 ontologies provide classes, properties, individuals, and data values and are stored as Semantic Web documents. OWL 2 ontologies can be used along with information written in RDF, and OWL 2 ontologies themselves are primarily exchanged as RDF documents. The OWL 2 Document Overview describes the overall state of OWL 2, and should be read before other OWL 2 documents.

  • OWL 2 Web Ontology Language New Features and Rationale
    2009
    Co-Authors: Christine Golbreich, Evan K. Wallace, Peter Patel-schneider
    Abstract:

    The OWL 2 Web Ontology Language, informally OWL 2, is an Ontology Language for the Semantic Web with formally defined meaning. OWL 2 ontologies provide classes, properties, individuals, and data values and are stored as Semantic Web documents. OWL 2 ontologies can be used along with information written in RDF, and OWL 2 ontologies themselves are primarily exchanged as RDF documents. The OWL 2 Document Overview describes the overall state of OWL 2, and should be read before other OWL 2 documents. This document is a simple introduction to the new features of the OWL 2 Web Ontology Language, including an explanation of the differences between the initial version of OWL and OWL 2. The document also presents the requirements that have motivated the design of the main new features, and their rationale from a theoretical and implementation perspective.

  • OWL 2 Web Ontology Language XML Serialization
    2008
    Co-Authors: Boris Motik, Peter Patel-schneider, Achille Fokoue, Rinke Hoekstra, S. Bechhofer, B. Cuenca Grau, Bijan Parsia
    Abstract:

    The OWL 2 Web Ontology Language, informally OWL 2, is an Ontology Language for the Semantic Web with formally defined meaning. OWL 2 ontologies provide classes, properties, individuals, and data values and are stored as Semantic Web documents. OWL 2 ontologies can be used along with information written in RDF, and OWL 2 ontologies themselves are primarily exchanged as RDF documents. The OWL 2 Document Overview describes the overall state of OWL 2, and should be read before other OWL 2 documents. This document specifies an XML serialization for OWL 2 that mirrors its structural specification. An XML schema defines this syntax and is available as a separate document, as well as being included here.

  • D2.5.5 Next Steps for OWL
    2006
    Co-Authors: Bernardo Cuenca Grau, Peter Patel-schneider, Ian Horrocks, Bijan Parsia, Ulrike Sattler, Rob Shearer
    Abstract:

    EU-IST Network of Excellence (NoE) IST-2004-507482 KWEB Deliverable D2.5.5 (WP2.5) OWL 1.1 is a simple extension to the OWL DL species of the W3C OWL Web Ontology Language. OWL 1.1 has been designed to provide some interesting and useful expressive additions to OWL DL while retaining the desirable characteristics of OWL DL, including decidability and implementability. Keyword list: description logics, Ontology Language, RDF, OWL DL, OWL, W3C, standardization

Peter F Patelschneider - One of the best experts on this subject based on the ideXlab platform.

  • owl 2 web Ontology Language primer second edition
    2012
    Co-Authors: Pascal Hitzler, Bijan Parsia, Peter F Patelschneider, Markus Krotzsch, Sebastian Rudolph
    Abstract:

    The OWL 2 Web Ontology Language, informally OWL 2, is an Ontology Language for the Semantic Web with formally defined meaning. OWL 2 ontologies provide classes, properties, individuals, and data values and are stored as Semantic Web documents. OWL 2 ontologies can be used along with information written in RDF, and OWL 2 ontologies themselves are primarily exchanged as RDF documents. The OWL 2 Document Overview describes the overall state of OWL 2, and should be read before other OWL 2 documents.

  • owl 2 web Ontology Language rdf based semantics
    2009
    Co-Authors: Jeremy J Carroll, I Herman, Peter F Patelschneider
    Abstract:

    The OWL 2 Web Ontology Language, informally OWL 2, is an Ontology Language for the Semantic Web with formally defined meaning. OWL 2 ontologies provide classes, properties, individuals, and data values and are stored as Semantic Web documents. OWL 2 ontologies can be used along with information written in RDF, and OWL 2 ontologies themselves are primarily exchanged as RDF documents. The OWL 2 Document Overview describes the overall state of OWL 2, and should be read before other OWL 2 documents. This document defines the RDF-compatible model-theoretic semantics of OWL 2.

  • owl 2 web Ontology Language mapping to rdf graphs
    2009
    Co-Authors: Peter F Patelschneider, Bernardo Cuenca Grau, Ian Horrocks
    Abstract:

    The OWL 2 Web Ontology Language, informally OWL 2, is an Ontology Language for the Semantic Web with formally defined meaning. OWL 2 ontologies provide classes, properties, individuals, and data values and are stored as Semantic Web documents. OWL 2 ontologies can be used along with information written in RDF, and OWL 2 ontologies themselves are primarily exchanged as RDF documents. The OWL 2 Document Overview describes the overall state of OWL 2, and should be read before other OWL 2 documents. This document defines the mapping of OWL 2 ontologies into RDF graphs, and vice versa.

  • owl 2 web Ontology Language
    2009
    Co-Authors: Manchester Syntax, Matthew Horridge, Peter F Patelschneider
    Abstract:

    The OWL 2 Web Ontology Language, informally OWL 2, is an Ontology Language for the Semantic Web with formally defined meaning. OWL 2 ontologies provide classes, properties, individuals, and data values and are stored as Semantic Web documents. OWL 2 ontologies can be used along with information written in RDF, and OWL 2 ontologies themselves are primarily exchanged as RDF documents. The OWL 2 Document Overview describes the overall state of OWL 2, and should be read before other OWL 2 documents. The Manchester syntax is a user-friendly compact syntax for OWL 2 ontologies; it is frame-based, as opposed to the axiom-based other syntaxes for OWL 2. The Manchester Syntax is used in the OWL 2 Primer, and this document provides the Language used there. It is expected that tools will extend the Manchester Syntax for their own purposes, and tool builders may collaboratively extend the common Language.

  • owl 2 web Ontology Language structural specification and functional style syntax
    2008
    Co-Authors: Boris Motik, Ian Horrocks, Bijan Parsia, Peter F Patelschneider, C Bock, Achille Fokoue, Peter Haase, Rinke Hoekstra, Alan Ruttenberg, Ulrike Sattler
    Abstract:

    The OWL 2 Web Ontology Language, informally OWL 2, is an Ontology Language for the Semantic Web with formally defined meaning. OWL 2 ontologies provide classes, properties, individuals, and data values and are stored as Semantic Web documents. OWL 2 ontologies can be used along with information written in RDF, and OWL 2 ontologies themselves are primarily exchanged as RDF documents. The OWL 2 Document Overview describes the overall state of OWL 2, and should be read before other OWL 2 documents. The meaningful constructs provided by OWL 2 are defined in terms of their structure. As well, a functional-style syntax is defined for these constructs, with examples and informal descriptions. One can reason with OWL 2 ontologies under either the RDF-Based Semantics [OWL 2 RDF-Based Semantics] or the Direct Semantics [OWL 2 Direct Semantics]. If certain restrictions on OWL 2 ontologies are satisfied and the Ontology is in OWL 2 DL, reasoning under the Direct Semantics can be implemented using techniques well known in the literature.

William J Gerber - One of the best experts on this subject based on the ideXlab platform.

  • potential modeling and simulation applications of the web Ontology Language owl
    Winter Simulation Conference, 2004
    Co-Authors: Lee W Lacy, William J Gerber
    Abstract:

    The Semantic Web is an evolution of the current world-wide web that provides explicit semantics that enable software applications to better process information representations. The Web Ontology Language -- OWL -- is a new Language for representing information on the Semantic Web. Modeling and simulation (M&S) applications have many information representation challenges. Examples of M&S data include data tables from authoritative data sources, behaviors for computer generated forces, and descriptions of units and entities to be simulated. OWL provides a consistent syntax using the Resource Description Framework (RDF) and predefined constructs with standard semantics. These features enable better information sharing and support reasoning by inferencing systems. OWL is best used for representing object-oriented descriptions of items in a well-defined domain. It could be used in the M&S community to support distributed representations of data, behaviors, descriptions of units and objects to be simulated, and scenarios with initial conditions.

  • Winter Simulation Conference - Potential modeling and simulation applications of the web Ontology Language - OWL
    Proceedings of the 2004 Winter Simulation Conference 2004., 1
    Co-Authors: Lee W Lacy, William J Gerber
    Abstract:

    The Semantic Web is an evolution of the current world-wide web that provides explicit semantics that enable software applications to better process information representations. The Web Ontology Language -- OWL -- is a new Language for representing information on the Semantic Web. Modeling and simulation (M&S) applications have many information representation challenges. Examples of M&S data include data tables from authoritative data sources, behaviors for computer generated forces, and descriptions of units and entities to be simulated. OWL provides a consistent syntax using the Resource Description Framework (RDF) and predefined constructs with standard semantics. These features enable better information sharing and support reasoning by inferencing systems. OWL is best used for representing object-oriented descriptions of items in a well-defined domain. It could be used in the M&S community to support distributed representations of data, behaviors, descriptions of units and objects to be simulated, and scenarios with initial conditions.

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