One sector that has been very active in the adoption of Linked Data is that of libraries. In an effort to highlight this activity, SemanticWeb.com, supported by OCLC and LITA, put out a call last month for work that promoted or demonstrated the benefits of linked data for libraries.

After receiving a number of excellent nominations, we are pleased to announce that Kevin Ford, from the Network Development and MARC Standards Office at the Library of Congress, was selected to showcase his work with the Bibliographic Framework Initiative (BIBFRAME) and his continuing work on the Library of Congress’s Linked Data Service (loc.id). In addition to being an active contributor, Kevin is responsible for the BIBFRAME website; has devised tools to view MARC records and the resulting BIBFRAME resources side-by-side; authored the first transformation code for MARC data to BIBFRAME resources; and is project manager for The Library of Congress’ Linked Data Service. Kevin also writes and presents frequently to promote BIBFRAME, ID.LOC.GOV, and educate fellow librarians on the possibilities of linked data.

Congratulations to Kevin!

If you want to learn more about BIBFRAME and the role Linked Data is playing in the world of libraries, join us at Semantic Technology & Business Conference, June 2-5 where Kevin’s colleague from the Library of Congress, Nate Trail, will deliver a lightning talk on BIBFRAME, and Richard Wallis of the OCLC will present From Record to Graph – Exposing a Legacy.

Image Courtesy Flickr/ Paul Lowry

Yesterday The Semantic Link Podcast featured Karen Coyle, a consultant in library technology who’s consulted for esteemed institutions including the Library of Congress. Coyle discussed libraries’ long history with metadata, including with the MARC (machine-readable cataloging) format for nearly 50 years, and of sharing that metadata. That history helps explain why libraries, she said, are looking at semantic web technology – but also why changes to established processes are huge undertakings. “The move toward Linked Data will be the most significant change in library data in these two centuries,” she said, requiring the move from mainly textual data into using identifiers for things and data instead of strings.

Today, The Semantic Web Blog continues the discussion by sharing some perspectives on the topic from OCLC technology evangelist Richard Wallis. As noted in yesterday’s podcast, change has its challenges. “Getting the library community to get its head around Linked Data as a replacement for MARC … will be a bit of a challenge,” Wallis says. While more members of the library community are starting to “get” Linked Data, and what can be accomplished by extracting entities and linking between them, some still struggle with why change can’t just occur within the MARC format itself or its successor Resource Description and Access (RDA), that provides atomistic, machine-actionable data and machine-interpretable relationships. RDA, Wallis reminds us, took a decade from inception to publication and business model.

“The ramifications of turning into the Linked Data world are quite deep and meaningful but it will be a few years for that to be established in the library world,” Wallis says.

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On Friday, February 8, a group of Semantic thought leaders from around the globe met with their host and colleague, Eric Franzon, for the latest installment of the Semantic Link, a monthly podcast covering the world of Semantic Technologies. This episode includes a discussion about libraries, an area that has seen a great deal of activity in the Linked Data space recently.

“The Linkers” were joined by a very special guest to discuss what’s been happening in the library world: Karen Coyle.
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Karen Coyle recently analyzed a new release of OCLC metadata records. She writes, “OCLC recently released a file of 1.2 million metadata records for the most widely held items in its catalog. These are all items with 250 library holdings or more. I created a list on WorldCat of the top 50, mostly out of curiosity. I was quite surprised at the results, however. Here’s how it breaks down: 16 periodicals, with Time and Newsweek being numbers 1 and 2, respectively; 29 kid and YA books, four of which (and very high even in this small list) from the Diary of a Wimpy Kid series; 5 adult books.”

Coyle goes on, “The five adult books are: (1) McCullough, D. G. (1992). Truman. New York: Simon & Schuster. (2) Brown, D. (2003). The Da Vinci code: A novel. New York: Doubleday. (3) Johnson, S. (1998). Who moved my cheese?: An a-mazing way to deal with change in your work and in your life. New York: Putnam.  (4) Haley, A. (1976). Roots. Garden City, N.Y: Doubleday.  (5) Peters, T. J., & Waterman, R. H. (1982). In search of excellence: Lessons from America’s best-run companies. New York: Harper & Row. This small set gives me many ideas of things to investigate in the full set.”

Read more here.

Image: Courtesy OCLC

According to a new article, “OCLC and Europeana are collaborating to investigate ways of creating semantic links between the millions of digital objects that are accessible online through Europeana.eu in order to improve ‘similar object’ browsing. Europeana is Europe’s digital library, archive and museum. The Europeana platform and network of experts facilitate research and knowledge exchange between librarians, curators and archivists, and link them with digital innovators and the creative industries. Europeana currently gives people access to over 24 million books, paintings, films, recordings, photographs and archival records from 2,200 partner organizations, through an interface in 29 languages.” Read more

The OCLC has created a video entitled Linked Data for Libraries. The fourteen minute video provides an introduction to the concepts and technology behind linked data as well as how linked data works and how it is used in libraries.

According to the organization website, “OCLC is a nonprofit, membership, computer library service and research organization dedicated to the public purposes of furthering access to the world’s information and reducing information costs. Read more

Following the recent announcement that WorldCat.org pages now include schema.org markup, OCLC has announced that the WorldCat Facebook app will now also feature Linked Data. The article states, “The availability of Linked Data in WorldCat.org has everyone here very excited. We had been anxiously awaiting the chance to make use of this new feature in our own applications, and are now beginning to try it out.”

It continues, “You may have already seen the bookmarklet developed by OCLC Developer Network staff that show how to extract schema.org markup to send information to Goodreads or to a Patron Drive Acquisitions system that accepts data via OpenURL, or the bookmarklet that extracts author URIs and uses those to query VIAF for links to DBPedia. If not, you should definitely check those out.” Read more

OCLC has announced that WorldCat.org pages now include schema.org descriptive mark-up.

Created over the last four decades with the participation of thousands of member libraries, WorldCat is the world’s largest online registry of library collections. As the official press release states, “WorldCat.org now offers the largest set of linked bibliographic data on the Web. With the addition of Schema.org mark-up to all book, journal and other bibliographic resources in WorldCat.org, the entire publicly available version of WorldCat is now available for use by intelligent Web crawlers, like Google and Bing, that can make use of this metadata in search indexes and other applications.”

On the heels of the announcement earlier this week about Dewey Decimal Classifications also being available as Linked Data, this certainly marks an exciting week in the world of library information and the Semantic Web. However, this should also prove to be exciting for non-librarians, as these resources are now available beyond the world of library sciences.

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Linked data is becoming even more interesting to the OCLC, a non-profit, membership, computer library service and research organization of 72,000 libraries in 170 countries and territories around the world. It’s named Richard Wallis — formerly of the U.K.’s Talis Linked Data and Semantic Web Technology company and one of our frequent Semantic Web Blog guest authors — to the position of Technology Evangelist.

The OCLC has as a major asset Worldcat, a global catalog comprising the collections of more than 10,000 libraries and adding up to more than 258 million records and 1.8 billion-plus holdings, in traditional library metadata format. WorldCat.org is the publicly searchable view of their core data in library format based upon library records (Marc records). More semantic web-oriented is other work the OCLC been doing over the last couple of years, Wallis explains, including experiments with using RDF/Linked Data at viaf.org, where the Virtual International Authority File publishes authoritative descriptions of names or organizations, and something similar for the Dewey Decimal Classification system at dewey.info.

In his new role, Wallis will collaborate with members and facilitate projects with OCLC teams as libraries and the cooperative drive efforts to expose WorldCat data as linked data, and will represent OCLC and WorldCat to the global library and web/IT leader communities. The VIAF and Dewey projects certainly provided an opportunity for OCLC to see the benefit of linking things together. On top of that, “the climate for Linked Data and libraries has changed dramatically over the last 12 months,” Wallis says.

Interest was evident at the Linked Data in Libraries event he ran for Talis this past summer, for example, and efforts like the W3C’s Linked Data in Libraries interest group, the Linked Open Data in Libraries, Archives & Museums work, the British Library’s work on the British National Bibliography as Linked Open Data, and the Library of Congress’s   Bibliographic Framework Initiative General Plan all are adding fuel to the fire.

The opportunity is there for the OCLC to take the lead on Linked Data in the somewhat fragmented library world as those organizations start to hear more and more about the concept. “Linked Data is starting to be something talked about in the library world, but like any other world, it’s still a bit of an enthusiast environment,” Wallis says. As he evangelizes to the library community what Linked Data is about – and to the web community about what the OCLC is doing with its chunk of data that is relevant to the wider Linked Data and Web of Data world – he hopes “to be in at the beginning of a process where those two communities come together to help come up with the best way of applying Linked Data principles to library data.”

In a statement announcing the appointment, Robin Murray, OCLC Vice President, Global Product Management, said, “Richard Wallis is a leader in Semantic Web and Linked Data technology, and we believe he will help the OCLC cooperative extend our efforts to help libraries move to Webscale.”

Data Liberate, the consultancy Wallis began upon leaving Talis, will continue as a personal blogging site. “I still have interest wider than the library community and I believe that those interests can keep me up to date with the wide world and advise my advice into the OCLC,” he says.

According to a new announcement, “OCLC Research has made FAST (Faceted Application of Subject Terminology) available for bulk download, along with some minor improvements based on user feedback and routine updates. As with other FAST data, the bulk downloadable versions are available at no charge. FAST is an enumerative, faceted subject heading schema derived from the Library of Congress Subject Headings (LCSH). OCLC made FAST available as Linked Open Data in December 2011.” Read more