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RBMS12 Linked Open Data Panel

RBMS12 Linked Open Data Panel

tingletech

June 26, 2012
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  1. 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"
  2. 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
  3. 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
  4. Open Data • Summers' flavor RDF and graphML • Open

    Data Commons Attribution License • other data made available for research, but is not open licensed
  5. • 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
  6. 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)