AbstractThe 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
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