Linked Data and Library Vendors

In February we wrote about Linked Data basics and resources but only briefly mentioned its application by library vendors.  In this post we’ll look deeper into existing and future library applications and services from major library vendors that implement Linked Data.

OCLC

OCLC WorldCatBefore the BIBFRAME model began development, OCLC was already experimenting with Linked Data using the Schema.org model and worked toward expanding its vocabularies to include bibliographic data.

Right now all WorldCat entries include Linked Data.  At the bottom of an item record, there is an expandable section headed “Linked Data” which will display the Linked Data schema:

OCLC WorldCat Record Linked Data Example

WorldCat displays the Primary Entry and any Related Entries in several standard formats:

SirsiDynix

BLUEcloudBLUEcloud Visibility was announced in a press release on January 7, 2015.  SirsiDynix partnered with Zepheira to create this add-in product to work with SirsiDynix’s existing products.  They created a pilot program with Douglas County Libraries.

BLUEcloud Visibility transforms MARC21 records to Linked Data.  Some features:

  • Service to extract your MARC records and transform them into BIBFRAME resources
  • Records are enhanced with library location data making them geographically relevant to patrons in your area
  • Creates linked data for your library resources, so search engines can index, link them to other resources, and make them discoverable

Currently only library catalog data is included, but the company plans to extend to electronic resources.  Currently there is no real-time item availability.  Records will be updated twice a month.

BLUEcloud Visibility Graphic
Graphic from: BLUEcloud Visibility: The Future of Library Data webinar at http://go.sirsidynix.com/BLUEcloud-Visibility-The-Future-of-Library-Data-On-Demand.html

Read more on SirsiDynix’s BLUEcloud Visibility page.

Innovative Interfaces

Innovative InterfacesInnovative Interfaces is an active sponsor of the Libhub Initiative.  In August 2015 they published The ILS and Linked Data: A White Paper to explain why the company was adopting Linked Data and answers some questions about it.

On March 16, 2016, Innovative Interfaces and Zepheira announced a partnership to use Zepheira’s Linked Data technology in Innovative’s new Innovative Linked Data service.

Innovative Linked Data
Graphic from: Innovative Linked Data FAQ at https://www.iii.com/sites/default/files/Innovative Linked Data FAQ.pdf

“Innovative Linked Data is available immediately as a subscription service for Polaris, Sierra, Millennium, and Virtua library systems” according to the press release.

Ex Libris

Putting Linked Data at the Service of LibrariesIn January, Ex Libris announced that the company launched a program to “harness linked data technology in its resource management and discovery solutions” and published the paper Putting Linked Data at the Service of Libraries. The paper details how Ex Libris will enrich products such as their Alma resource management service and Primo discovery service with Linked Data both as a source and a consumer.

Future versions of Alma will ingest BIBFRAME records and enable cataloging librarians to utilize global online authority files such as VIAF for author/creator authority records, Library of Congress Linked Data Subject Headings, and GeoNames geographical place names database.

Ex Libris Primo

The next Primo user interface will include Linked Data features to enhance search results.  Linked Data will, of course, increase the exposure of the library’s resources to third-party applications and the Web at-large.

Ex Libris is working with its user groups to form Linked Open Data Special Interest Working Groups to help develop and test Linked Data features in the products mentioned.  Collaborating libraries include those at Boston College, University of Oklahoma, and University of Amsterdam.

Library Technology at the ALA 2016 Annual Conference

ALA 2016 Annual Conference

The ALA 2016 Annual Conference is just about a month away.  The conference covers a myriad of library topics and sorting through the program sessions to find the ones focused on library technology takes effort.  Let us do the work for you.

Here is our list of programs related to library technology.  You’ll find interest groups and sessions on data and metadata, makerspaces, UX, Linked Data, ILS and LMS, websites, mobile apps, emerging technologies, and more.  Committee meetings were not included.

For official descriptions, speakers, and final schedule, please check the conference Full Schedule page.

Continue reading “Library Technology at the ALA 2016 Annual Conference”

Altmetrics: Basics and Resources

Altmetrics are “alternative metrics” to measure the influence and reach of scholarly output on the Web through peer-review counts, influential news sites and blog posts, citation manager bookmarks such as Mendeley, Wikipedia citations, and social media mentions on sites such as Twitter and Facebook.

Why understand altmetrics?

Altmetric ScoreAltmetrics go beyond the traditional citation metrics to take into consideration how scholarly output such as journal articles and research datasets are being cited and shared by others on the Web in order to measure influence. They are meant to complement tradition metrics, not replace them.

Altmetrics counts (and scores) are updated much more quickly than traditional citation counts so are especially helpful with “hot topics” getting mainstream attention where citation counts can lag by months and even years.

The Basics

Altmetrics are basically counts of mentions and links to scholarly journals and datasets from reputable news sites (and aggregators) and blogs, peer-reviewed sites, reference managers, and major social media sites.  The company Altmetric uses a weighted score with a Twitter post counting as 1 point, a news article counts 8, a blog is 5, and a Wikipedia link is 3. Sources counting less than 1 point include Facebook and YouTube at 0.25 point and LinkedIn at 0.5.

Wiley added altmetrics to Wiley journal articles in the Wiley Online Library in 2014.  Elsevier added Altmetric scores Scopus in 2012 and to ScienceDirect in a pilot project in late 2013, but in 2015 switched to their own altmetrics system for ScienceDirect and Scopus.

We are seeing altmetrics incorporated into several library products. Two of the most prominent companies, Altmetric and EBSCO’s Plum Analytics, provide altmetrics to vendors for inclusion in services such as discovery tools and institutional repositories.

ProQuest Central Altmetric BadgeIn October 2015, ProQuest announced the addition of Altmetric badges to 360 Link and ProQuest databases.  On the abstract page of some scholarly journal articles in ProQuest databases will be displayed an Altmetric badge with basic details of the article’s reach on the Web.  Users can click through to see the complete details page [Altmetric.com version].

In February of this year ProQuest added altmetrics to its Summon service for free.  Libraries using Summon simply need to turn on the feature.  If available, search results will show an Altmetric score.  Hovering over this button (see below) shows more detailed counts.  Like above, users can click through to see the complete details page.  This same information can be displayed in the right-side preview panel.

Summon Search Results Altmetrics

Plum Analytics’ PlumX Metrics integrates with institutional repositories and categorizes metrics into five separate types:

  1. Usage – clicks, downloads, views, library holdings, video plays
  2. Captures – bookmarks, code forks, favorites, readers, watchers
  3. Mentions – blog posts, comments, reviews, Wikipedia links
  4. Social media – +1s, likes, shares, tweets
  5. Citations – PubMed Central, Scopus, patents

Unlike Altmetric, PlumX does not give a score.  At the bottom of the abstract and information page, PlumX displays a count of these metrics by category with a link to see details.

PlumX Institutional Repository Summary

Impactstory is another service providing altmetrics.  Its focus is on individuals who want to learn the impact of their research output. It’s an open-access website which you can access with an ORCID.

Resources

Here are some great online resources to learn about altmetrics:

Altmetrics: a Manifesto – Definitive post from altmetrics.org.

#altmetrics – Twitter hashtag.

Against the Grain – Link to the article “Altmetrics: Documenting the Story of Research” (2016).

arXiv – Link to the article “Altmetrics in the wild: Using social media to explore scholarly impact” (2012).

Impactstory blog – Link to blog post “4 things every librarian should do with altmetrics” (2014).

Mendeley Altmetrics Group – A group to “discuss new approaches to the assessment of scholarly impact based on new metrics.”

NISO Altmetrics Initiative – Project to create standards and best practices for altmetrics.

Here are some popular books about altmetrics:

Altmetrics by Robin Chin Roemer and Rachel Borchardt

AltmetricsThis title is actually an issue of Library Technology Reports from ALA Tech Source.  The report “outlines both the promises and major obstacles faced by the field of altmetrics” as well as covers the librarian’s role in providing education and support of altmetrics. Published in 2015.

View details and find a place to buy or borrow at Google Books.

Altmetrics: A Practical Guide for Librarians, Researchers and Academics edited by Andy Tattersall

Altmetrics: A Practical Guide for Librarians, Researchers and AcademicsThis forthcoming book gives an overview and the theory behind altmetrics.  It looks at the ways libraries can utilize altmetrics and educate researchers.  To be published in June 2016.

View details and find a place to buy or borrow at Google Books.

Altmetrics for Information Professionals: Past, Present and Future by Kim Johan Holmberg

Altmetrics for Information Professionals: Past, Present and FutureThis scholarly book looks at key altmetrics research innovations.  It presents the data sources used.  Finally, it looks to the future to determine alternative metric trends.  Published in 2015.

View details and find a place to buy or borrow at Google Books.

BIBFRAME: Basics and Resources

BIBFRAME is a bibliographic framework for the description of physical and online objects to make them accessible on the Web by using a standard Linked Data model. It is a replacement for MARC.

Why the move to BIBFRAME?

The Machine Readable Cataloging (MARC) standard was developed over forty years years ago to make bibliographic records usable by computers.  MARC records were the basis for online public library catalog (OPAC) records to make items searchable in library catalogs. This sufficed until the 1990s and the rise of the Internet.

However, MARC was so entrenched that it took another decade before the Library of Congress made the first move towards converting MARC to a Web standard with MARCXML.  This schema essentially reformatted the MARC record fields and subfields into an XML schema but was not an entirely new model.  MARCXML wasn’t widely adopted.

So in 2011 the Library of Congress, along with the consulting company Zepheria, set out to create a new bibliographic framework called BIBFRAME to make library records conform to Web standards. BIBFRAME is a web-first Linked Data model intended to make library records accessible to the Web at large.

The Basics

BIBFRAMEThe BIBFRAME initiative was announced in an open letter “A Bibliographic Framework for the Digital Age” (dated October 31, 2011) by Deanna Marcum from the Library of Congress. In this letter it was recognized that the MARC record was outdated and a new format was needed for the Internet age.

So BIBFRAME was developed on the RDF model using Linked Data through the Bibliographic Framework initiative.  Its current draft specification is version 2.0.

The BIBFRAME Model consists of the following core classes:

  • Creative Work – a resource reflecting a conceptual essence of the cataloging item.
  • Instance – a resource reflecting an individual, material embodiment of the Work.
  • Authority – a resource reflecting key authority concepts that have defined relationships reflected in the Work and Instance. Examples of Authority Resources include People, Places, Topics, Organizations, etc.
  • Annotation – a resource that decorates other BIBFRAME resources with additional information. Examples of such annotations include Library Holdings information, cover art and reviews.

BIBFRAME Model

Within the Vocabulary of BIBFRAME there is a current total of 53 classes and subclasses falling under Resource such as Work, Instance, Authority, and Annotation.  A BIBFRAME Resource can have 289 current properties such as absorbedBy, classificationLcc, doi, format, relatedInstance, title, uri, to give just a few examples.

A good explanation of BIBFRAME was given in an ALCTS webinar titled “From MARC to BIBFRAME: An Introduction” by Victoria Mueller from Zepheira and Carolyn Hansen from the University of Cincinnati.

With millions of MARC records created over the last several decades, an obvious question arises: How will MARC records be converted into BIBFRAME?  The Library of Congress addressed this need in their paper “Bibliographic Framework as a Web of Data” (see Resources below):

A key part of supporting the BIBFRAME model is in providing tools and supporting services for helping migrate from MARC to a Linked Data environment. They should provide a means of navigating the output of a declarative BIBFRAME pipeline which takes existing MARC 21 data and translates this to the BIBFRAME model.

BIBFRAME.ORG offers a MARC to BIBFRAME Transformation Service to convert MARCXML files.  There is also an experimental open source marc2bibframe XQuery utility from the Library of Congress (and a Python version by Zepheira).

Resources

Here are some great online resources to learn about BIBFRAME:

  • BIBFRAME Editor – Open source editing software downloadable from Github.
  • BIBFRAME FAQ – Frequently asked questions and answers from the Library of Congress.
  • BIBFRAME Listserv – Bibliographic Framework Transition Initiative Forum.
  • BIBFRAME.ORG – Is an index site to BIBFRAME Initiative, Model & Vocabulary, and Implementation and Testing sites.
  • Bibliographic Framework Initiative – Library of Congress website with official BIBFRAME information, specifications, FAQ, tools, news, and more.
  • Zepheira – Linked Data and BIBFRAME training from the company which was consulted by the Library of Congress to develop the BIBFRAME specifications.

Here are some popular papers about BIBFRAME:

BIBFRAME AV Assessment: Technical, Structural, and Preservation Metadata by Bertram Lyons and Kara Van Malssen

BIBFRAME AV Assessment: Technical, Structural, and Preservation MetadataThis paper, undertaken on behalf of the Library of Congress, investigates how metadata of audiovisual material can be best handled using BIBFRAME.  Sections cover preservation, structural, and technical metadata.   Appendices give examples of video, audio, and film examples.  Published in 2015, revised January 4, 2016.

Access the full-text paper (PDF).

Bibliographic Framework as a Web of Data: Linked Data Model and Supporting Services by the Library of Congress

Bibliographic Framework as a Web of Data: Linked Data Model and Supporting ServicesStraight from the source, this paper is an early look into the BIBFRAME model to introduce the subject and begin discussion.  It covers the four classes (Creative Work, Instance, Authority, and Annotation) and vocabulary.  The papers covers related initiatives such as OCLC’s WorldCat, Schema.org, RDA, and FRBR.  Published in 2012.

Access the full-text paper (PDF).

The Relationship between BIBFRAME and OCLC’s Linked-Data Model of Bibliographic Description: A Working Paper by Carol Jean Godby

The Relationship between BIBFRAME and OCLC’s Linked-Data Model of Bibliographic Description: A Working Paper“This document describes a proposed alignment between BIBFRAME and a model being explored by OCLC with extensions proposed by the Schema Bib Extend project, a W3C-sponsored community group tasked with enhancing Schema.org to the description of library resources.”  The paper also covers FRBR and gives examples of BIBFRAME in Turtle and RDF/XML syntax.  Published in 2013.

Access the full-text paper (PDF).

The Virtual International Authority File (VIAF)

VIAF Authority Record for Harper Lee

The authority file goes global.

It was probably inevitable that there would be an attempt to create a global authority file for library bibliographic data.  Any worldwide authority file would need the support of major national libraries and library organizations.  We now have the first viable candidate.

VIAFThe Virtual International Authority File (VIAF) is not a new service, but one that has become more prominent in recent times due to the direction of OCLC (starting in 2012) and the rise of linked data. It began as a joint project of the Library of Congress and the German National Library, then the National Library of France and OCLC, but now has a long list of contributors.

From OCLC, the VIAF service has these characteristics:

  • A collaborative effort between national libraries and organizations contributing name authority files, furthering access to information
  • All authority data for a given entity is linked together into a “super” authority record
  • A convenient way for the library community and other agencies to repurpose bibliographic data produced by libraries serving different language communities

The VIAF combines the national authority files—which contain data such as names of authors and companies, conferences, places, and subject headings in their native languages—into a single international name authority service.

There are several benefits of a global name authority file (or service). Obviously, there is the fundamental benefit of providing uniform names for indexing and searching.  With a global authority file, the connecting application, such as a discovery service, can retrieve and display names based on the language of the application’s user interface—and can switch on-the-fly.  It enables the generation of “see” and “see also” links across languages.  The VIAF allows developers to search and access the authority data using an API.

As mentioned at the beginning, the VIAF is one source which can be accessed via a linked data URI.  Here’s an example:

creator: {
@id: “http://id.loc.gov/authorities/names/n78089036”,
label: “Wodehouse, P. G. (Pelham Grenville), 1881-1975”,
sameAs: “http://viaf.org/viaf/sourceID/LC|n78089036”
}

The above operation translates a Library of Congress control number for an author to the related VIAF record.

You can search the VIAF at viaf.org.

View a typical authority record at viaf.org/viaf/46734193.

VIAF authority Record Map for P. G. Wodehouse