Thursday, August 09, 2012

Linked Data for Libraries

OCLC has a video on YouTube, Linked Data for Libraries. "A short introduction to the concepts and technology behind linked data, how it works, and some benefits it brings to libraries." A nice fifteen minute introduction.

Rights Metadata

Not sure how I missed this earlier, but I did see it in the latest American Libraries Direct. The Choose a License from Creative Commons enables building a license in four easy steps. It provides an offline (text) version, a XMP version for embedding in images, and a version in HTML/RDFa for use on Web pages.
Creative Commons is a nonprofit organization that enables the sharing and use of creativity and knowledge through free legal tools.

Our free, easy-to-use copyright licenses provide a simple, standardized way to give the public permission to share and use your creative work — on conditions of your choice. CC licenses let you easily change your copyright terms from the default of “all rights reserved” to “some rights reserved.”

Creative Commons licenses are not an alternative to copyright. They work alongside copyright and enable you to modify your copyright terms to best suit your needs.

Tuesday, August 07, 2012

DBpedia 3.8 Released

News from the DBpedia folks.
The most important improvements of the new release compared to DBpedia 3.7 are:
  1. the new release is based on updated Wikipedia dumps dating from late May / early June 2012.
  2. the DBpedia ontology is enlarged and the number of infobox to ontology mappings has risen.
  3. the DBpedia internationalization has progressed and we now provide localized versions of DBpedia in even more languages.
The English version of the DBpedia knowledge base currently describes 3.77 million things, out of which 2.35 million are classified in a consistent Ontology, including 764,000 persons, 573,000 places (including 387,000 populated places), 333,000 creative works (including 112,000 music albums, 72,000 films and 18,000 video games), 192,000 organizations (including 45,000 companies and 42,000 educational institutions), 202,000 species and 5,500 diseases.

We provide localized versions of DBpedia in 111 languages. All these versions together describe 20.8 million things, out of which 10.5 mio overlap (are interlinked) with concepts from the English DBpedia. The full DBpedia data set features labels and abstracts for 10.3 million unique things in 111 different languages; 8.0 million links to images and 24.4 million HTML links to external web pages; 27.2 million data links into external RDF data sets, 55.8 million links to Wikipedia categories, and 8.2 million YAGO categories. The dataset consists of 1.89 billion pieces of information (RDF triples) out of which 400 million were extracted from the English edition of Wikipedia, 1.46 billion were extracted from other language editions, and about 27 million are data links into external RDF data sets.

California Digital Library Announces Release of XTF Version 3.1

The California Digital Library (CDL) is pleased to announce the release of version 3.1 of XTF (http://xtf.cdlib.org/), an open source, highly flexible software application that supports the search, browse and display of heterogeneous digital content. XTF provides efficient and practical methods for creating customized end-user interfaces for distinct digital content collections and is used by institutions worldwide.

Major features in the 3.1 release include:
  • Improved schema handling for EAD finding aids. In addition to EAD 2002 DTD, XTF now provides support for search and display of:
    • EAD 2002 schema and EAD 2002 RelaxNG finding aids
    • Output from Archivists' Toolkit and Archon
  • Better OAI 2.0 conformance
  • Dynamic site maps to support optimal search engine indexing
See the 3.1 change log (http://xtf.cdlib.org/documentation/changelog/#3.1) for further details.

Documentation Changes of Note

OCLC has made these changes.

Fixed Field coding of GPub Government Publication
http://www.oclc.org/bibformats/en/fixedfield/gpub.shtm changed significantly. Now it is important to consider the “*Status of the governmental entity.* Choose a code based on the status of the jurisdiction at the time of publication, e.g., for Texas government publications, use code /f/ for the period 1836-1845 and code /s/ for the period 1845-“

Field 040 Cataloging Source
http://www.oclc.org/bibformats/en/0xx/040.shtm Definition now includes this statement: “Historically in WorldCat the absence of subfield ‡b has indicated that English is the language of cataloging. OCLC now recommends always coding this element.”