https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/Head https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8 http://www.nanopub.org/nschema#hasAssertion https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/assertion https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8 http://www.nanopub.org/nschema#hasProvenance https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/provenance https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8 http://www.nanopub.org/nschema#hasPublicationInfo https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/pubinfo https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8 http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://www.nanopub.org/nschema#Nanopublication https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/assertion https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/from-marc-to-meaning-building-and-using-a http://purl.org/dc/terms/description <span><p>Libraries have cataloged the world's published record for over a century, but that description sits as text inside records rather than as identifiable things. We have spent the past several years rebuilding it as a knowledge graph. WorldCat Entities publishes descriptions of people, events, places, organizations, and works as persistent, resolvable URIs. The Dewey Decimal Classification is published on the same basis, which turns a familiar classification scheme into a machine-navigable hierarchy of human knowledge.</p><p>These identifiers have been integrated across OCLC data to improve our products and services and are also widely used by libraries and other cultural heritage organizations around the world.</p><p>Two decisions mattered most in the effort to build out our knowledge graph.</p><ul><li> First, we centralized entity management so that two libraries describing the same person land on the same URI.</li><li> Second, we never asked anyone to adopt a new workflow: identifiers are written into records automatically as catalogers do the job they already do, which is why adoption has grown steadily rather than stalling.</li></ul><p>An important lesson we learned that can help every organisation working to build a graph is that a graph delivers its value at the point of linkage, so getting identifiers into the systems people already use is critical to success and adoption.</p></span> https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/from-marc-to-meaning-building-and-using-a http://purl.org/dc/terms/isPartOf https://w3id.org/spaces/semantic-data-ny/2026 https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/from-marc-to-meaning-building-and-using-a http://purl.org/pav/authoredBy https://orcid.org/0000-0002-8411-2952 https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/from-marc-to-meaning-building-and-using-a http://www.w3.org/1999/02/22-rdf-syntax-ns#type http://www.wikidata.org/entity/Q604733 https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/from-marc-to-meaning-building-and-using-a http://www.w3.org/2000/01/rdf-schema#label From MARC to Meaning: Building and Using a Knowledge Graph at Library Scale https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/from-marc-to-meaning-building-and-using-a http://www.w3.org/2000/01/rdf-schema#seeAlso https://henrystewartconferences.com/session/events-semantic-data-new-york-2026-marc-meaning-building-and-using-knowledge-graph-library https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/from-marc-to-meaning-building-and-using-a http://www.wikidata.org/entity/P823 https://orcid.org/0000-0002-8411-2952 https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/from-marc-to-meaning-building-and-using-a https://schema.org/endDate 2026-10-01T12:40:00-04:00 https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/from-marc-to-meaning-building-and-using-a https://schema.org/location New York Hilton Midtown Hotel https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/from-marc-to-meaning-building-and-using-a https://schema.org/startDate 2026-10-01T12:10:00-04:00 https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/provenance https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/assertion http://www.w3.org/ns/prov#wasAttributedTo https://orcid.org/0000-0001-8492-0354 https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/assertion http://www.w3.org/ns/prov#wasDerivedFrom https://henrystewartconferences.com/events/semantic-data-new-york-2026/agenda/day-1 https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/pubinfo https://orcid.org/0000-0001-8492-0354 http://xmlns.com/foaf/0.1/name Ashley Caselli https://orcid.org/0000-0002-8411-2952 http://xmlns.com/foaf/0.1/name Jeff Mixter https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8 http://purl.org/dc/terms/created 2026-09-16T10:39:16Z https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8 http://purl.org/dc/terms/creator https://orcid.org/0000-0001-8492-0354 https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8 http://purl.org/dc/terms/license https://creativecommons.org/licenses/by/4.0/ https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8 http://purl.org/nanopub/x/introduces https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/from-marc-to-meaning-building-and-using-a https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8 http://www.w3.org/2000/01/rdf-schema#label Presentation: From MARC to Meaning: Building and Using a Knowledge Graph at Library Scale https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8 https://w3id.org/np/o/ntemplate/wasCreatedFromProvenanceTemplate http://purl.org/np/RAefFjYMSnydcZtTqdT8TG8rJeJa76ryG7h10VHQiWKgY https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8 https://w3id.org/np/o/ntemplate/wasCreatedFromPubinfoTemplate https://w3id.org/np/RA-N4_kFxcruvBTlo1yJv29E4SLOXsx5KO_th69PprMrA https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8 https://w3id.org/np/o/ntemplate/wasCreatedFromPubinfoTemplate https://w3id.org/np/RACJ58Gvyn91LqCKIO9zu1eijDQIeEff28iyDrJgjSJF8 https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8 https://w3id.org/np/o/ntemplate/wasCreatedFromPubinfoTemplate https://w3id.org/np/RARJj78P72NR5edKOnu_f4ePE9NYYuW2m2pM-fEoobMBk https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8 https://w3id.org/np/o/ntemplate/wasCreatedFromPubinfoTemplate https://w3id.org/np/RAYrlN4s93vVe9LGI-gmPLTb-QZGHKd0mxx8VxJ3XVhuw https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8 https://w3id.org/np/o/ntemplate/wasCreatedFromTemplate https://w3id.org/np/RAnXwqhtOJ1lxMw8dQVDKOmQSBJynhJR-agg4iyzTJDj8 https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/sig http://purl.org/nanopub/x/hasAlgorithm RSA https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/sig http://purl.org/nanopub/x/hasPublicKey MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA+i9DV8ynzO944pYkYsDwtlqJHuk+b7FQt6Bb4TIQSDX3jGUURn6WpaNwESHmgMLWSydaH5XlabMzuqpPL4iyB+IAzvwIxdJBLhe39EQMu2j+FZ/5d/xu/gO3nZw2KoEvJ7cJisabuI05OylIRSJ+OG5CmzFxnjojUEJeCFi1njY1InhXrb0yHud9b1ifzweoN6YYOBecKs1gTOaT2bf+t4Wgzg3M0PmRVZ4F0OALsnh4T5+x7kFtiPcDKNpORi585JjKCZ4kczIF6oUKcwgC0kmIY97jtLqSLcXRkxHx5CDI6qz4XlRFs1ZbCUdSlzjdPZAkaBcNem1gIhWzkHkEnQIDAQAB https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/sig http://purl.org/nanopub/x/hasSignature UOnQu9B6pk5dvvdMosfJFIc28lytY/Fp2WhS75BFrH8aTUclToXJFmB2+Ii0cenUATrvwgJ+httUn60cJH2h3qgMkwqaYWkS7QreMq1BMInUtoHIIsBRWpvZnyWYEH013/uDwbEhekB6XSincC0/+yGR4OCe0/hoSB1XJDm+ev2KMlg+f6kGYzAPVCrVntfZr03D4JssGG6SRVWlxgEJrqZsnFm9zvsBuIE0qwOnxmxFslfiDWcilnoZWz5hIVQJfpCMXRNS9ODni9u0KFPfHLKmy1+amofrtlyLgzcXVHNcyAEr4HnVYczms+wC8rm7RoYnvohhCvWI6jHpss19/g== https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/sig http://purl.org/nanopub/x/hasSignatureTarget https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8 https://w3id.org/np/RAZRQjIqprtfSJSByKHfibq3I55YVQt9l1qbuhkL6P5Z8/sig http://purl.org/nanopub/x/signedBy https://orcid.org/0000-0001-8492-0354