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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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Linking Data, Linking People Presentation Transcript

  • 1. Linking Data, Linking People2010 International Symposium on Agricultural Ontology ServiceJohn Fereira, Cornell Universityjaf30@cornell.edu
  • 2.
  • 3. An RDF Graph
    John Fereira
    isAnEmployeeOf
    Cornell University
    • Subject: John Fereira
    • 4. Predicate: isAnEmployeeOf
    • 5. Object: Cornell University
  • 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)
  • 6. 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
  • 7. Sample RDF can describe members
    <foaf:Organization>        <foaf:name>Cornell University</foaf:name>        <dc:typerdf: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>
  • 8.
  • 9.
  • 10.
  • 11. Code4Lib: Code For Libraries
  • 12.
  • 13. <?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_nearrdf: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_urifoaf:knows http://www.code4lib.org/id/zoia").</s:comment>
    <knows>
    <Person rdf:about="http://rc98.net/foaf#me">
    <nick>gsf</nick>
    </Person>
    </knows>
    <swc:attendeeAtrdf:resource="http://code4lib.org/2009#conference" />
    <swc:attendeeAtrdf: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>
  • 14.
  • 15. 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
  • 16.
  • 17. Vivo in the Open Data Cloud
  • 18. Food security
  • 19.
  • 20.
  • 21.
  • 22.
  • 23. Melbourne Central Research Data Registry
  • 24. SKE Knowledge Environment
  • 25. Biomedical and Health Knowledge Environment
  • 26. Unique Identifier for Michael Conlon
    http://vivo.ufl.edu/individual/n25562
    http://vivo.ufl.edu/individual/Michael_Conlon would be better
  • 27.
  • 28. Requesting RDF using an Accept Header
    curl -H "Accept: application/rdf+xml" -X GET http://vivo.ufl.edu/display/n25562
  • 29.
  • 30. 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
  • 31.
  • 32.
  • 33. Enabling National Networking of Scientists
  • 34. Vivoweb is open source
    http://www.vivoweb.org
    http://sourceforge.net/projects/vivo
  • 35. cancer
  • 36.
  • 37.
  • 38. Visualizing RDF as a map
  • 39. Querying the CIARD ring with SPARQL
  • 40. Ciard Ring SPARQL Query results
  • 41.
  • 42. Thank YouZieZie
  • 43. Linking Data, Linking People
    A collection of links
    Ontology defined on Wikipedia
    http://en.wikipedia.org/wiki/Ontology_(information_science)
    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/index.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/SemanticServices/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