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AGROVOC – Standard Vocabularies to link open data - Dr. Johannes Keizer
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AGROVOC – Standard Vocabularies to link open data - Dr. Johannes Keizer

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Präsentation von Dr. Johannes Keizer auf dem ]init[ Event "Open Data in Practice" am 7.9.2011 in Berlin

Präsentation von Dr. Johannes Keizer auf dem ]init[ Event "Open Data in Practice" am 7.9.2011 in Berlin

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  • Ifresources are marked up withsemanticallydefined and machinereadableconcepts, they can belinked and mashed up preciselyaswehaveseen in the examplefrom the BBC.In thisexamplewe start withan AGRIS record on Hazardouswaste, whichisindexedwith AGROVOC. Alreadynowwe can easily link to material indexedwithEurovoc, hereanexamplefromEuroLex. If the UNBIS thesaurus wouldberestructuredto a conceptscheme and publishedas LOD, related UN documentscouldbeattachedautomaticallyby the machine.
  • Ifresources are marked up withsemanticallydefined and machinereadableconcepts, they can belinked and mashed up preciselyaswehaveseen in the examplefrom the BBC.In thisexamplewe start withan AGRIS record on Hazardouswaste, whichisindexedwith AGROVOC. Alreadynowwe can easily link to material indexedwithEurovoc, hereanexamplefromEuroLex. If the UNBIS thesaurus wouldberestructuredto a conceptscheme and publishedas LOD, related UN documentscouldbeattachedautomaticallyby the machine.
  • How does this work: A resource is connected with each concept URI in the web. The concepts between three vocabularies are having same literal which is connected with owl:sameAS/exactMatch relationship. As we are speakingaboutthesauri and notontologieswekept the relation tobechosenpurposelyvague. The conceptscouldbematchedwithowl:sameAS or the termscouldbematcheswith SKOS:exactMatch. A lotofdiscussion on thisisongoing
  • Thisis the AGROVOC SKOS modelthathasbeendeveloped and decided in April 2010 under activecollaborationfrom Tom Baker, whowasmemberof the W3C SKOS workinggroup.
  • Transcript

    • 1. AGROVOC – Standard Vocabularies to link open data
      Dr. Johannes Keizer
      Office ofKnowledge Exchange, Research and Extension
      Food andAgricultureOrganizationofthe UN
      Talk at “Open Data in Practice”
      ]init[, Berlin, 2011-09-07
    • 2. “... FAO’s principle task is to work to ensure that the world’s knowledge of food and agriculture is available to those who need it when they need it and in a form which they can access and use ...”
    • 3. Data and Information in AgriculturalResearch and Extension
    • 4. Distributed Data Sets
    • Distributed Data Sets
      ?
      ?
      How to make value added services?
    • 23. Distributed Data Sets
      How to infere knowledge?
    • 33. Distributed Data Sets
      How can I get in real time all the specimen data on useful insects from all people making research on this on my desktop? How can I share in real time my data with other colleagues working on that.
      How to organize collaboration?
    • 43. Going simply from here…to
    • here…does not solvetheproblem
      RDF Silos are not Linked Data
    • 53. Howtogethere?
    • 54. „Hazardouswaste“ information
    • 55. Semantic Linking
      http://aims.fao.org/aos/agrovoc/c_7825
      http://agclass.nal.usda.gov/nalt/2011.xml#1780
      http://eurovoc.europa.eu/218754
    • 56. AGROVOC
      http://aims.fao.org/aos/agrovoc/c_7825
      Linking data through common URIs
      http://www.agnic.org/search/CAT85822953
      TOXIC SUBSTANCES
      UNBIS
      NALT
      http://agclass.nal.usda.gov/nalt/2011.xml#1780
      http://eurovoc.europa.eu/218754
      http://agris.fao.org/agris-search/search/display.do?f=1996/TR/TR96001.xml;TR9600026
      Eurovoc
      http://unbisnet.un.org:8080/ipac20/ipac.jsp?session=128F308557F34.283092&profile=bib&uri=full=3100001~!685149~!1&ri=1&aspect=subtab124&menu=search&source=~!horizon
      http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:202:0011:0015:EN:PDF
      http://aims.fao.org/aos/agrovoc/c_12332 owl:sameAshttp://eurovoc.europa.eu/219871
      skos: exact match UNBIS: Toxic Substances
    • 57. http://agris.fao.org/openagris/search.do?recordID=JP2010001379
    • 58. Open AGRIS threads
    • 59. AGROVOC
    • 60. AGROVOC
      A multilingual agricultural vocabulary organized as concept scheme in 20 languages
      Covers agriculture, forestry, fisheries and related themes (food security, land use, environment, etc.)
      Organized in sub-vocabularies, e.g. chemicals, fisheries terms, scientific/common names of organisms
      Maintained by a global community (e.g. librarians, terminologists, information managers) using VocBench
    • 61. AGROVOC - Statistics
    • 62. :bar
      skos:literalForm
      “maize”
      :foo
      has_synonym
      :foo
      skos:literalForm
      “corn”
      has_translation
      maïs (fr)
      has_synonym
      :bar
      AGROVOCConceptScheme
      Other scheme in FAO
      skos:inScheme
      Another scheme in FAO
      skos:topConceptOf
      6211
      Further schemes in FAO
      skos:inScheme
      skos:broader
      8171
      skos:broader
      SKOSConcept
      1474
      SKOS Label
      skos:broader
      12332
      rdf:type
      skosxl:prefLabel
      skosxl:altLabel
      rdf:type
      has_synonym
      The AGROVOC concept scheme
    • 63.
    • 64.
    • 65. Linked Open Vocabularies
      Inlinks:
      AGROVOC - GEMET: 1,191
      AGROVOC - TheSoz: 846
      AGROVOC - RAMEAU: 686
      AGROVOC - Geopolitical Ontology: 253
      Total mapping inlinks: 2,976
      Outlinks:
      AGROVOC - Eurovoc: 1,297;
      AGROVOC - GEMET: 1,191;
      AGROVOC - LCSH: 1,093;
      AGROVOC - NALT: 13,390;
      AGROVOC - STW: 1,136  (Inlinks will be published with the next edition of STW);
      AGROVOC - TheSoz: 846;
      AGROVOC - RAMEAU: 686;
      AGROVOC - DBpedia: 993;
      AGROVOC - DDC: 409;
      AGROVOC - Geopolitical Ontology: 253;
      All  AGROVOC Top Concept mapping: 21;
      Total mapping outlinks: 21,315
    • 66. Vocabularies and LOD
      Simply publishing your data as RDF does not link them to other data sets 
      Creating these links by humans is interesting in detail, but unrealistic as mass processing
      Linking 2 standard vocabularies can link 200 datasets which use these standard vocabularies
    • 67. In the Pipeline
      Vocabulary Workshop at DC2011 (needto talk aboutvocabularyalignmentandmaintenance)
      Aligningof AGROVOC with all relevant vocabularies
      Getting a criticalmass in published open RDF datafromexistingdatabases(wrappingofexistingcontent)
      Getting robust „retrofitting“ mechanismsforunstructuredcontent(AgroTagger, openKLproject)
      Creatinghighvalueservicesfrom Triple Stores
    • 68. Thank You!
      Credits: John Ferreira, Imma Subirats, Yves Jaques, Valeria Pesce, Fabrizio Celli, Ahsan Morshed, Catarina Caracciolo, Dickson Lukose, Gudrun Johannsen, Stefano Anibaldi, Armando Stellato, Tom Baker and manyothers
    • 69. http://aims.fao.org
      http://www.ciard.net
      http://ring.ciard.net
      http://aims.fao.org
      http://agris.fao.org