2026-08-11T10:11:33Z https://dcpapers.dublincore.org/oai

oai:dcpapers.dublincore.org:952109369 2008-09-10 dc-2008

LCSH is to Thesaurus as Doorbell is to Mammal: Visualizing Structural Problems in the Library of Congress Subject Headings Spero, Simon E LCSH Controlled vocabularies Hierarchical relationships visualization The Library of Congress Subject Headings (LCSH) has been developed over the course of more than a century. Before 1986, only “See Also” references were available. In that year, an attempt was made to automatically convert these references into standardized hierarchical and associative thesaural relations. This process was highly unreliable. Unfortunately 20 years later most records still have not had their references evaluated, making their use in automated processes problematic. As part of our work on converting the Headings into SKOS, this project has experimented with different graph visualizations of the tangled web of broader terms embedded in LCSH. This poster will demonstrate several of these renderings, show how they can help users to judge which relationships might not be correct, and reveal the true relationship between Doorbells and Mammals. A sample visualization is available online at http://www.ibiblio.org/ses/dashbell.pdf Dublin Core Metadata Initiative 2008-09-10 Text application/pdf text/html https://doi.org/10.23106/dcmi.952109369 https://dcpapers.dublincore.org/article/952109369 Dublin Core Metadata Initiative Conference Proceedings en https://www.wikidata.org/wiki/Q120636556 https://creativecommons.org/licenses/by/4.0/