RBMS12 Linked Open Data Panel

Transcript

1. Linked Open Data in SNAC #RBMS12 Brian Tingle @tingletech
2. What is Linked Open Data? • w3c Semantic Web Technology Stack • Web of atomized Data, not a web of documents • RDF; OWL ontologies; SPARQL queries; triple/quad/quint stores • httpRange14; content negotiation; CURIE • No restrictions on data use; free and easy license • Not of direct interest to most "real users"
3. What is Linked Open Data? • Getting to the good stuff • Blue underlined text • Pulling in data from multiple sources, in an intelligent way, into a "document" • Understand and discover relationships • Open access for research, education, private study and other fair use
22. • First steps into linked data proper; embedded RDFa and micro data
23. RDFa owl:sameAs
24. HTML 5 microdata in chron list
25. Tinkerpop graph database stack • Simple "property graph" model • "JDBC for graph databases" [SNAC is using Neo4J for the graphDB] • XPath like "gremlin" for graph query • REST interfaces with "Rexster" • For me, this was 10 to 100 times easier than using RDF
27. Thanks Ed Summers! RDF of the social graph
28. Open Data • Summers' flavor RDF and graphML • Open Data Commons Attribution License • other data made available for research, but is not open licensed
31. • Record view page has meta link to Summers style RDF for the page (via SPARQL query). -- content negotiation is not supported, but I think what we are doing is httpRange14 compliant • Also experimenting with italian RDF via xslt
32. http://templates.xdams.net/IBC/ontology/eac-cpf.rdf Silvia Mazzini regesta.exe srl
34. &mode=xml2owl [experimental]
35. Future LOD plans for SNAC • Stable URIs between batches • More links to related sources such as dbpedia, IMDB, familysearch, id.loc.gov • Content negotiation (in SNAC 2 I'll have control over the front end apache, so this should be easy enough) • Visualizations useful and integrated (network and geospatial) • Integration with local systems (such as with the context widget)