APR 13

DevConnect 2023: Discovery without Disclosure - Using Query Collection MARC to Surface Non-traditional Subject Relationships while Respecting Prot

In this presentation, Emily Fidelman of West Virginia University presents an methodology using SQL on MARC pulled from WMS query collections to capture “out-of-ontology" content.

Dit is een on-demand evenement.

Linked data ontologies use principles of link popularity as a mechanism for algorithms to rank topical search. Increasingly, they form the basis for Discovery layers running on library metadata in contrast to retrieving specific MARC fields in weighted combination with others. There are also concerns about privacy and reductionism when categorizing content in ontologies, especially content related to protected identities.

In distinguishing between linked data ontologies and ontologies embedded in MARC metadata such as LCSH, Emily will demonstrate a methodology using SQL on MARC pulled from WMS query collections to capture “out-of-ontology" content. By combining subject headings from embedded MARC fields, such as LCSH, with other data points, librarians can retrieve materials on a subject that may not be related to others in an explicit or easily defined way, generating collection insights to potentially remediate gaps in representation while respecting the privacy and varied experience of persons with protected identities.


  • Emily Fidelman, Head of Metadata, West Virginia University

This webinar is part of DevConnect 2023, an annual OCLC program in which OCLC and library staff share API and technology insights with the library community.

For questions about a specific webinar or the series, contact Carly DiVito at

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13 april 2023


11:00 AM – 12:00 PM
Eastern Daylight Time, North America [UTC -4]

Recording access

This webinar recording is available to members of the OCLC APIs Community. To view the recording, you’ll need to sign into the OCLC Community Center with your credentials. If you don’t know your Community Center credentials, reference the OCLC Support website or contact OCLC Support.  If you don’t have Community Center credentials, you may request them here.