Library Cataloging
Exciting news from LC.
- Ontologies And The Web
Martinez Usero, Jose Angel and Beltran Orenes, Maria Pilar (2005) Ontologies in the context of knowledge organization and interoperability in e-government services. In Proceedings IRFD World Forum on Information Society 2005, Tunis (Tunisia).A philosophical...
- Ontologies And The Semantic Web
Order from Chaos by Natalya Noy appears in ACM Queue v. 3, no. 8 - October 2005.Just as anyone can put up his or her own page on the Web and anyone can point to it (and say either good or bad things about it), on the Semantic Web anyone can post an ontology,...
- Free Tagging Paper
The paper The New School of Ontologies by Nick Mote has some problems. He seems to be confused about different types of controlled vocabularies. He states "Instead of requiring that the contributor adapt to the ontology, folksonomies adapt the ontology...
- Ontologies
The Role of Ontologies in Teaching and Learning by Ruth Wilson is a white paper on the topic.Ontologies are currently a buzzword in many communities, hailed as a mechanism for making better use of the Web. They offer a shared definition of a domain that...
- Ontologies
The latest issue of Information Research has the article "A literature-based approach to annotation and browsing of Web resources" by Miguel A. Sicilia, Elena Garcia, Ignacio Aedo, and Paloma Diaz.The emerging Semantic Web technologies critically depend...
Library Cataloging
LC's Linked Data Service
Exciting news from LC.
We are experimenting with a new feature of LC's Linked Data Service designed to more easily make use of the available data by providing a simple way to import the data into OWL ontologies, especially via OWL editors such as Protégé [1] or TopBraid Composer [2].
As you all know, we published a number of vocabularies and value lists - such as the MARC Lists for example - as MADS/RDF Authorities, SKOS Concepts, and RDF Resources quite some time ago.
Although the data made available (URIs, labels, etc) are useable in ontologies and OWL editors as is, our own use cases have led us to simplify the process of making use of them in ontologies and OWL editors. To this end, we've modified the output so that the data are readily understandable by an OWL editor (for example, we output rdfs:label for the label properties in addition to skos:prefLabel and madsrdf:authoritativeLabel because OWL editors appear pre-configured to understand rdfs:label and not necessarily skos:prefLabel) and we've created mini-ontologies designed for import into other ontologies. The idea is that the mini-ontology will import all that is needed to make use of the vocabularies and value lists in an user-friendly manner.
For example, to make use of the ISO639-2 Languages one could import the following ontology:
http://id.loc.gov/ontologies/iso639-2_Languages
This will import all the ISO639-2 Language resources, and required data (such as labels and RDF types), and the ISO639-2 Language Class (also defined by LC). Once imported, you would then define an Object Property, the range of which is a resource that is an instance of an ISO639-2 Language (http://id.loc.gov/vocabulary/iso639-2/iso639-2_Language).
The following URIs resolve to the mini-ontologies we've created:
http://id.loc.gov/ontologies/MARC_Languages
http://id.loc.gov/ontologies/MARC_GeographicAreas
http://id.loc.gov/ontologies/MARC_Countries
http://id.loc.gov/ontologies/iso639-1_Languages
http://id.loc.gov/ontologies/iso639-2_Languages
http://id.loc.gov/ontologies/iso639-5_Languages
(The following is a list of properties)
http://id.loc.gov/ontologies/Roles
Please feel welcome to try these out in your own ontologies. Feedback (suggestions, quibbles, good/bad) is welcome.
[1] http://protege.stanford.edu/
[2] http://www.topquadrant.com/products/TB_Composer.html
- Ontologies And The Web
Martinez Usero, Jose Angel and Beltran Orenes, Maria Pilar (2005) Ontologies in the context of knowledge organization and interoperability in e-government services. In Proceedings IRFD World Forum on Information Society 2005, Tunis (Tunisia).A philosophical...
- Ontologies And The Semantic Web
Order from Chaos by Natalya Noy appears in ACM Queue v. 3, no. 8 - October 2005.Just as anyone can put up his or her own page on the Web and anyone can point to it (and say either good or bad things about it), on the Semantic Web anyone can post an ontology,...
- Free Tagging Paper
The paper The New School of Ontologies by Nick Mote has some problems. He seems to be confused about different types of controlled vocabularies. He states "Instead of requiring that the contributor adapt to the ontology, folksonomies adapt the ontology...
- Ontologies
The Role of Ontologies in Teaching and Learning by Ruth Wilson is a white paper on the topic.Ontologies are currently a buzzword in many communities, hailed as a mechanism for making better use of the Web. They offer a shared definition of a domain that...
- Ontologies
The latest issue of Information Research has the article "A literature-based approach to annotation and browsing of Web resources" by Miguel A. Sicilia, Elena Garcia, Ignacio Aedo, and Paloma Diaz.The emerging Semantic Web technologies critically depend...