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The Document Availability Information Ontology (DAIA) describes the current availability of documents in libraries and similar institutions. Availability can be expressed in terms of specific services. A link to a page with more information about the storage can be added with foaf:page and foaf:primaryTopicOf. However there should be another property to express a link to a specific item at a specific storage. Relates an Item to a Service which the Item is available for. This property is disjoint with the unavailable property; however an Item can be available and unavailable for two different Services of the same class at the same time.
Document Availability Information Ontology (DAIA)
W3C POWDER Working Group
This tool implements all features of a POWDER Processor required for conformance as defined in the Description Resources document . It uses some of the code from the validator, makes use of a MySQL database, and is written in Perl. A knowledge transformation and migration system for transferring knowledge between semantic representations that acts as a POWDER-S processor.RDA
NEWS: The Library of Congress has announced that they will implement RDA cataloging on March 31, 2013. Learn more about this important announcement . The video and slides of the March 21st presentation of RDA Toolkit Essentials is now available. This bimonthly webinar serves as an introduction and guide to using RDA Toolkit and will cover the variety of content available on the site and offer tips on searching and navigating. Get Your Bookmark!
Focus on Library Metadata: RDA Vocabularies for a Twenty-First-C
Karen Coyle is in the putting the finishing touches on the February issue of Library Technology Reports, titled "RDA Vocabularies for a Twenty-First-Century Data Environment" . In the following excerpt, she addresses the difficulty that many librarians have in understanding the basic concepts of FRBR, and offers some diagrams to clarify them. Though understanding FRBR may be tricky, she argues, it is essential to a transformation to a modern, workable data environment. Some of our misconceptions of FRBR may arise because of the starkness of the diagrams in the FRBR document.
Advantages of thesauri representation with the Simple Knowledge
Introduction The concept of thesaurus has evolved from a list of conceptually interrelated words to today's controlled vocabularies, where terms form complex structures through semantic relationships. This term comes from the Latin and has turn been derived from the Greek "θησαυρός", which means treasury according to the Spanish Royal Academy, in whose dictionary it is also defined as: 'name given by its authors to certain dictionaries, catalogues and anthologies'. The increase in scientific communication and productivity made it essential to develop keyword indexing systems. At that time, Howerton spoke of controlled lists to refer to concepts that were heuristically or intuitively related. According to Roberts ( 1984 ), Mooers was the first to relate thesauri to information retrieval systems; Taube established the foundations of post-coordination, while Luhn dealt, at a basic level, with the creation of thesauri using automatic techniques.
RDA Vocabularies: Process, Outcome, Use
The Resource Description and Access (RDA) standard, due to be released this coming summer, has included since May 2007 a parallel effort to build Semantic Web enabled vocabularies. This article describes that effort and the decisions made to express the vocabularies for use within the library community and in addition as a bridge to the future of library data outside the current MARC-based systems. The authors also touch on the registration activities that have made the vocabularies usable independently of the RDA textual guidance.Mercury has the unique capability to extract, or harvest, metadata from HTML pages or XML files located anywhere on the Internet. Participating in Mercury is easy for data providers. No special software is needed by the data provider, only a Web server on which to post files. Mercury provides a single portal to information contained in disparate data management systems.
MERCURY - Distributed Metadata Management, Data Discovery and Ac
Dans le dernier Dlib , on peut lire un article très intéressant de Karen Coyle, Diane Hillmann, Jon Phipps et Gordon Dunsire sur l'expression de RDA en RDF . Il rend compte d'un travail effectué dans le cadre du groupe de travail DCMI/RDA qui comme son nom l'indique travaille sur le rapprochement entre Dublin Core et RDA. Pour mémoire, les RDA (Resource Description and Access) sont un ensemble de nouvelles règles de catalogage en cours d'élaboration dans la communauté anglo-saxonne, dont le principal caractère novateur est de prendre acte de la modélisation définie par les FRBR . En fait ce qu'ils présentent dans l'article c'est un premier travail pour exprimer les RDA sous la forme d'une ontologie en RDF, qui est disponible en ligne dans le répertoire de métadonnées de la NSDL . L'article rappelle qu'il s'agit d'un premier travail, qui arrive en avance de phase par rapport à la version définitive de RDA (prévue en juin).
Les RDA en RDF | Figoblog
RDA Vocabularies: Process, Outcome, Use
The Resource Description and Access (RDA) standard, due to be released this coming summer, has included since May 2007 a parallel effort to build Semantic Web enabled vocabularies. This article describes that effort and the decisions made to express the vocabularies for use within the library community and in addition as a bridge to the future of library data outside the current MARC-based systems. The authors also touch on the registration activities that have made the vocabularies usable independently of the RDA textual guidance. Designed for both human and machine users, the registered vocabularies describe the relationships between FRBR, the RDA classes and properties and the extensive value vocabularies developed for use within RDA.
In March 2010 several Cologne-based libraries have opened their catalogue data under a CC0 license following Tim Berners-Lee's call for "Raw Data Now!". What has been the motivation behind this step? The hbz ("Hochschulbibliothekzentrum des Landes Nordrhein-Westfalen", english: "North Rhine-Westphalian Library Service Centre") has come to the conclusion that libraries need to participate in the development of the Semantic Web .
Adrian Pohl: "We believe the Semantic Web plays an important rol