Correctly uses sub-property relationships in support of inference. – Linked Data for Professional Education

OWL 2 Web Ontology Language Primer (Second Edition)

Thu, 18 May 2017 07:03:04 +0000

This primer provides an approachable introduction to OWL 2, including orientation for those coming from other disciplines, a running example showing how the language can be used to represent first simple information and then more complex information, how it manages ontologies, and finally the distinctions between its various "flavors".

URL: https://www.w3.org/TR/owl2-primer/
Keywords: Web Ontology Language (OWL), Knowledge representation, Class hierarchy, Property chain, Axiom
Author: Rudolph, Sebastian
Publisher: W3C
Date created: 2012-12-11 05:00:00.000
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P1H
Educational use: instruction
Educational audience: student
Interactivity type: expositive

RDFS for Hierarchy and Subsumption

Sun, 02 Apr 2017 06:55:49 +0000

This PowerPoint presentation explains the role which concepts from thesauri and taxonomies play in Linked Data (especially as they relate to SKOS). It briefly discusses ontologies in general before moving on to RDF Schema. Examples are given of how to defines classes of resources and the relations that connect them using RDFS. Focuses on defining hierarchical relations in support of inference (i.e., formally stating that membership in a narrower class automatically implies membership in a broader class).

URL: https://github.com/elsevierlabs/LD4PE/files/877578/Hierarchy_and_inheritance.pptx
Keywords: RDF Schema, Taxonomy, Thesaurus, Simple Knowledge Organization System (SKOS)
Author: Malaise, Veronique
Publisher: Elsevier
Date created: 2017-03-28 04:00:00.000
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P25M
Educational use: instruction
Educational audience: professional
Interactivity type: expositive

Protege: How To Define Property Types and Axioms

Wed, 11 Jan 2017 06:45:38 +0000

This video is about defining property types and axioms using Protégé, a free, open-source ontology editor and framework. Although the video deals with one specific tool, it lends insight into the thought process of building out an ontology from scratch.

URL: https://www.youtube.com/watch?v=qVOQLDTNsSg
Keywords: Ontology, Protégé
Author: Bikakis, Antonis
Date created: 2013-02-18 07:00:00.000
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P10M
Educational use: instruction
Educational audience: professional

Protege: How To Add Individuals

Wed, 11 Jan 2017 06:45:37 +0000

This video is about adding individuals to an ontology which was previously created using Protégé, a free, open-source ontology editor and framework. Although the video deals with one specific tool, it lends insight into the thought process of building out an ontology from scratch. Discusses object property assertions and shows an example of how the tool's built-in reasoner can detect inconsistencies in the ontology.

URL: https://www.youtube.com/watch?v=_7MfDdsFePk
Keywords: Protégé, Ontology
Author: Bikakis, Antonis
Date created: 2013-02-18 07:00:00.000
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P5M
Educational use: instruction
Educational audience: student
Interactivity type: expositive

Protege: How To Define Classes as Property Restrictions

Wed, 11 Jan 2017 06:45:37 +0000

This video is about defining new classes by leveraging the property restrictions of existing classes. This is demonstrated with Protégé, a free, open-source ontology editor and framework. Although the video deals with one specific tool, it lends insight into the thought process of building out an ontology from scratch.

URL: https://www.youtube.com/watch?v=2aJudF8AnBI
Keywords: Protégé, Ontology
Author: Bikakis, Antonis
Date created: 2013-02-18 07:00:00.000
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P10M
Educational use: instruction
Educational audience: student
Interactivity type: expositive

Protege: How To Define Class Axioms

Wed, 11 Jan 2017 06:45:37 +0000

This video is about defining class axioms using Protégé, a free, open-source ontology editor and framework. Although the video deals with one specific tool, it lends insight into the thought process of building out an ontology from scratch. Concepts such as intersections and disjointedness are discussed.

URL: https://www.youtube.com/watch?v=RpM5f3OGqHo
Keywords: Protégé, Ontology
Author: Bikakis, Antonis
Date created: 2013-02-18 07:00:00.000
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P10M
Educational use: instruction
Educational audience: student

Simple Protege Tutorial: Adding Individuals

Mon, 09 Jan 2017 06:45:29 +0000

In this video, individuals (aka, "instances") are created and assigned to the previously created classes and sub-classes. Also shows how to add data property assertions to further describe these individuals, reminding the users that the proper datatype must be used for each property.

URL: https://www.youtube.com/watch?v=2UDX2Ho8ZEg
Keywords: Ontology, Protege
Author: Sadawi, Noureddin
Date created: 2014-02-05 05:00:00.000
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P10M
Educational use: instruction
Educational audience: professional
Interactivity type: expositive

Simple Protege Tutorial: Adding Object Properties

Mon, 09 Jan 2017 06:45:29 +0000

In this video, properties are added to express the relationships between objects belonging to the various classes. Sub-properties, domains, and ranges are also discussed. Also shown is how to choose a serialization format for the ontology and save it to a file using the Protege tool.

URL: https://www.youtube.com/watch?v=wCsP36wFxdA
Keywords: Ontology, Protege
Author: Sadawi, Noureddin
Date created: 2014-02-05 05:00:00.000
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P5M

Simple Protege Tutorial: Adding Data Properties

Mon, 09 Jan 2017 06:45:28 +0000

In this video, data properties are added to express the relationships between instances and data values, as well as setting domain and range restrictions for these data properties.

URL: https://www.youtube.com/watch?v=BaepddOkv4g
Keywords: Ontology, Protege, Datatypes
Author: Sadawi, Noureddin
Date created: 2014-02-05 05:00:00.000
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P5M
Interactivity type: expositive

Coloring RDF Triples to Capture Provenance

Wed, 23 Nov 2016 05:50:22 +0000

Recording provenance information of RDF triples aggregated from different heterogeneous sources is crucial in order to effectively support trust mechanisms, digital rights and privacy policies. Managing provenance becomes even more important when we consider not only explicitly stated but also implicit triples (discovered through RDF Schema inference rules) in conjunction with declarative languages for querying and updating RDF graphs. This paper proposes a method which relies on colored RDF triples represented as quadruples to capture and manipulate explicit provenance information.

URL: http://athena.ics.forth.gr:9090/SWKM/publications/ColoringRDFTriplestoCaptureProvenance.pdf
Keywords: RDF Schema, Provenance, Named graph
Author: Christophides, Vassilis
Publisher: Springer
Date created: 2009-01-01 05:00:00.000
Language: http://id.loc.gov/vocabulary/iso639-2/eng
Time required: P20M