This is an experimental service that makes the Library of Congress Subject Headings available as linked-data using the SKOS vocabulary. LCSubjects.org takes the data made available from the Library of Congress' Authorities and is intended as a sandbox to provide relationships to other thesaurii and web resources. More information about the Linked Data effort can be found on the W3C Wiki.
Following the principles laid out in Cool URIs for the Semantic Web you can reference LCSH concepts using a URI that contains the Library of Congress Control Number for the authority record: http://lcsubjects.org/subjects/{lccn}#concept. The server uses content negotiation to determine what representation of the concept to send: application/rdf+xml, text/n3, application/json, and otherwise application/xhtml+xml.
You can download the entire dataset, search across the concept scheme, or try out the SPARQL endpoint. Otherwise, here are a couple high level concepts, a couple fun concepts, and links to some linked data viewers to get you (or your bot) started on your travels:
| Concept | Concept URI |
|---|---|
| Science | http://lcsubjects.org/subjects/sh85118553#concept |
| Humanities | http://lcsubjects.org/subjects/sh85062913#concept |
| Mathematics | http://lcsubjects.org/subjects/sh85082139#concept |
| Cataloging | http://lcsubjects.org/subjects/sh85020816#concept |
| World Wide Web | http://lcsubjects.org/subjects/sh95000541#concept |
The code for this project is available at github.
The data store, search interface, and SPARQL endpoints are provided by the Talis Platform.
The inspiration, as well as the seed data, for this project was entirely from http://lcsh.info/ (RIP)