PREPARING FOR LINKED DATA IN DIGITAL REPOSITORIES Sai Deng, University of Central Florida Libraries ACRL Technical Services Interest Group ALA.

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PREPARING FOR LINKED DATA IN DIGITAL REPOSITORIES Sai Deng, University of Central Florida Libraries ACRL Technical Services Interest Group ALA MidWinter 2016

How do digital repositories accommodate authority control? CONTENTdm o Allows controlled vocabulary to be defined for each field; o Look up and add terms; o Need to either define the controlled list yourself, or choose to use a built-in thesaurus (from OCLC Terminologies Service). Dspace o Fields can be configured to allow authority control; o Look up and add terms; o Need to define the controlled list, keywords and subjects are not distinguished, allow LCSH; o Not linked to national or international authority database for control. Digital Commons o Discipline thesaurus functions as broad subjects; o Author Merge Tool: merges various names but names are created based on author/submitter’s , not authority file; o Allow fields to be defined as link-friendly. Authority Control in Digital Repositories: a step towards a linked data world? A step away from the growing popular keyword search?

Authority Control in Digital Repositories and Related Linked Data Projects ■Myntti, J. & Cothran, University of Utah collaborated with Backstage Library Works. Authority control in a Digital Repository: Preparing for Linked data. Adapted the process for MARC 21 authority control for digital CONTENTdm. ■Tarver et al., University of North Texas Libraries: UNT Names ( link to other vocabularies such as VIAF, LC name authority file, Google Scholar author profile, LinkedIn profile. ■Ideally, the systems can accommodate linked data or you have the resources to help you create external linked data and implement data reconciliation. If not, what can be done as a metadata librarian or a cataloging librarian?

The UCF Libraries’ Experiment of Adding Linked Data Fields to Its Digital Commons Linked data fields: o Use Digital Commons memo fields which allow links, e.g., Creator (Linked data), Contributor (Linked data); o Both VIAF and LC linked data uri(s) are added for the names. Statement: Subject – Predicate - Object This podcast – has contributor – Doran, Glen H.Doran, Glen H. Linked to VIAF or LC name authority uri(s)

The UCF Libraries’ Experiment of Adding Linked Data Fields to Its Digital Commons Virtual International Authority File (VIAF): Doran, Glen H. LC Name Authority File: Doran, Glen H.

The UCF Libraries’ Experiment of Adding Linked Data Fields to Its Digital Commons Keywords and Subjects: o Separate fields; o Some subjects have linked data uri(s), some subjects with subdivisions don't have individual uri(s); o Both are only text fields; possible to add links; o Digital Commons only display keywords as facets; need to request to add subjects as facets Type, geographic coverage, etc.: can convert to linked data fields. More possible statements: This podcast – has subject - Indians This podcast – has type – MovingImage This podcast – has geographic coverage – Brevard County (Fla.)

Cataloging Digital CONTENTdm: Adding Linked Data Values/Labels ■CONTENTdm: Adding linked data values to some fields for some collections –CONTENTdm doesn’t “fully” accommodate linked data; –Trying to catalog using linked data values for various fields, such as: Name, Place, State, Country, subjects… (terms uri(s) not added) –Use "Subject" and "Keyword" fields separately; –Always search LC Linked Data services, FAST and other online thesauri. ■Non-MARC data in digital repositories can take advantage of controlled vocabularies used in traditional library catalogs and furthermore, linked data lists; ■Is it deemed good practice for the catalogers to use linked data values/labels to prepare for the linked data in digital repositories?

Some Reflections ■Limitations of Existing Authority Files: –VIAF, LC Name Authority, Local Authority… (Inadequate) –When automatic full validation and data reconciliation is not yet built-in to the systems, how much time can be spent checking and adding the linked data values? –Is it the ideal world: Keywords co-exist with controlled vocabularies, especially linked data lists? (More freedom vs. more control?) ■Reactions to Linked Data –General initial reaction: Confusion, doubts; –Support experiments will try and evaluate…

Some Reflections ■Collaboration and Consensus Building –Collaboration between Cataloging and Digital Initiatives; –Collaboration between the library and other university units: The Regional Initiative for Collecting the History, Experiences, and Stories of Central Florida (RICHES), History Department… –Consensus building, experiments and evaluation ■Possibilities: –Name lists in linked data form (to meet local needs) ■Personal Names: (link to) VIAF; LC authority name; Google Scholar profile; DBpedia; ORCID… ■Organizational Names: (link to) VIAF; LC authority name headings… ■Geographic names, places: (link to) LC authority geographic names; GeoNames… –Create linked data from collections: Create mapping between metadata elements and data model predicates; Implement reconciliation; Build interface for access and displaying of linked data

References and Readings Lampert, Cory K. & Southwick, Silvia B. (2013). Transforming CONTENTdm metadata into linked open data. CONTENTdm Virtual Conference, December Luyten, Bram. ORCID for DSpace (2014). identifiers-for-dspacehttp:// identifiers-for-dspace Myntti, J. & Cothran N. (2013). Authority Control in a Digital Repository: Preparing for Linked Data. Journal of Library Metadata. Volume 13, Issue 2-3, Tarver, H., Waugh, L., Philips, M. & Hicks W. (2013). Implementing name authority control into institutional repositories: A staged approach. UNT Digital Library. University of Central Florida Libraries (2015). STARS: Showcase of Text, Archives, Research & Scholarship. Cover background photo: WorldCat Works linked data

Thank you! Acknowledgements:  Lee Dotson, Digital Initiatives Librarian,  Peter Spyers-Duran, Cataloging Librarian,  Jeanne Piascik, Principal Cataloger,  Mary Page, Associate Director, Collections & Technical Services, Contact: Sai Deng, Metadata Librarian,