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Linking Data, Linking People

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2010 International Symposium on Agricultural Ontology Services

2010 International Symposium on Agricultural Ontology Services

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  • 1. Linking Data, Linking People 2010 International Symposium on Agricultural Ontology Service John Fereira, Cornell University jaf30@cornell.edu
  • 2. An RDF Graph John Fereira Cornell University isAnEmployeeOf • Subject: John Fereira • Predicate: isAnEmployeeOf • Object: Cornell University
  • 3. What is an Ontology? • an ontology defines a set of representational primitives with which to model a domain of knowledge or discourse. http://en.wikipedia.org/wiki/Ontology_(information_science)
  • 4. My Definition of an Ontology • An Ontology is the language, or vocabulary used by practitioners in a specific domain. • Essentially it is a controlled vocabulary for a specific subject area, • Geographic Names Ontology defines terms for things like: • Park, Shelf, Saddle • Terms might have different means if using a different ontology
  • 5. Sample RDF can describe members <foaf:Organization> <foaf:name>Cornell University</foaf:name> <dc:type rdf:about="http://projectrss.org/wiki/spec#Type_of_Organization">nonprofit< /dc:type> <foaf:member> <foaf:Person> <foaf:name>John Fereira</foaf:name> </foaf:Person> <foaf:Person> <foaf:name>Aaron Godert</foaf:name> </foaf:Person> </foaf:member> </foaf:Organization>
  • 6. Code4Lib: Code For Libraries
  • 7. <?xml version="1.0" encoding="UTF-8"?> ... <Person rdf:about="http://www.code4lib.org/id/zoia"> <name>Zoia</name> <nick>zoia</nick> <depiction rdf:resource="http://rc98.net/img/zoia.jpg" /> <based_near rdf:parseType="Resource"> <geo:lat>40.7355556</geo:lat> <geo:long>-74.1727778</geo:long> </based_near> <s:comment>This URI indentifies me the person. Feel free to use it when making statements about me the person (such as "your_uri foaf:knows http://www.code4lib.org/id/zoia").</s:comment> <knows> <Person rdf:about="http://rc98.net/foaf#me"> <nick>gsf</nick> </Person> </knows> <swc:attendeeAt rdf:resource="http://code4lib.org/2009#conference" /> <swc:attendeeAt rdf:resource="http://code4lib.org/node/266#linked-data-preconf" /> <interest rdf:resource="http://dbpedia.org/resource/Python_%28programming_language%29"/> <interest rdf:resource="http://dbpedia.org/resource/Singing"/> </Person> </rdf:RDF>
  • 8. Linked Data principles Tim Berners-Lee: • Use URIs as names for things • Use HTTP URIs so that people can look up those names using the web • When someone looks up a URI, provide useful information, using the standards (RDF, SPARQL) • Include links to other URIs so that people can discover more things http://www.w3.org/DesignIssues/LinkedData.html http://linkeddata.org
  • 9. Vivo in the Open Data Cloud
  • 10. Food security
  • 11. Melbourne Central Research Data Registry
  • 12. SKE Knowledge Environment
  • 13. Biomedical and Health Knowledge Environment
  • 14. Unique Identifier for Michael Conlon • http://vivo.ufl.edu/individual/n25562 • http://vivo.ufl.edu/individual/Michael_Conlon would be better
  • 15. Requesting RDF using an Accept Header • curl -H "Accept: application/rdf+xml" -X GET http://vivo.ufl.edu/display/n25562
  • 16. Querying Triples with SPARQL • By individual URI (subject or object) • Everything about one event, a grant, a person • By property relationship (verb) • All organizations that are part of another • By type • Everything with an rdf:type of Event, Person, or Project • By combinations of the above • SPARQL leverages the RDF format to focus on the data
  • 17. Enabling National Networking of Scientists
  • 18. Vivoweb is open source http://www.vivoweb.org http://sourceforge.net/projects/vivo
  • 19. cancer
  • 20. Visualizing RDF as a map
  • 21. Querying the CIARD ring with SPARQL
  • 22. Ciard Ring SPARQL Query results
  • 23. Thank You Zie Zie
  • 24. Linking Data, Linking People A collection of links Ontology defined on Wikipedia http://en.wikipedia.org/wiki/Ontology_(information_scienc e) Example of FOAF http://code.google.com/p/projectrss-spec/wiki/examples About.me http://about.me/ Semantic Web Conference Ontology http://data.semanticweb.org/ns/swc/ontology Code4Lib http://www.code4lib.org Code4Lib "Zoia" http://code4lib.org/irc/faq Linked Data Principals http://www.w3.org/DesignIssues/LinkedData.html Linked Data site http://linkeddata.org Cornell Vivo (classic Vivo) http://vivo.library.cornell.edu Melbourne Central Research Data Registry http://vitrofe.esrc.unimelb.edu.au:8333/vitroANDS/i ndex.jsp?primary=1 Subject Knowledge Environment http://ske.las.ac.cn/ Vivo at University of Florida http://vivo.ufl.edu/ Semantic Web Services app http://turner.mannlib.cornell.edu:8080/SemanticSer vices/showMainMenu.do Cornell Classics Department site http://classics.cornell.edu/people/faculty.cfm Vivoweb http://vivoweb.org Vivoweb on Sourceforge http://www.sourceforge.net/projects/vivo