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Geometry2rdf(v2 boris)

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geometry2rdf, a Library for Generating RDF from Geometrical Information

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Geometry2rdf(v2 boris)

  1. 1. geometry2rdf<br />Victor Saquicela, Boris Villazón-Terrazas, Alexander de León, Luis M. Vilches, and Oscar Corcho<br />Facultad de Informática, Universidad Politécnica de Madrid<br />Campus de Montegancedosn, 28660 Boadilla del Monte, Madrid<br />http://www.oeg-upm.net<br />Phone: 34.91.3366605, Fax: 34.91.3524819<br />
  2. 2. ToC<br />Motivation<br />Briefdescription<br />Howitworks<br />FutureWork<br />2<br />
  3. 3. Motivation<br />Holidaystovisit Mora Municipality in Spain.<br />Wanttoknow places topracticewater-relatedsportsclosetothearea<br />3<br />?<br />
  4. 4. Motivation<br />In the geospatial context, the transformation and publication of the <br />OpenStreetMap<br />Ordnance Survey<br />GeoLinkedData<br />data according to the Linked Data principles have added a new dimension to the Web of Data. In this way spatial data can be retrieved and interlinked.<br />4<br />
  5. 5. Motivation<br />So, let’sconvertthegeospatialinformationinto RDF<br />But, how?<br />5<br />geometry2rdf<br />http://www.oeg-upm.net/index.php/en/downloads/151-geometry2rdf<br />http://mccarthy.dia.fi.upm.es/geometry2rdf/<br />
  6. 6. geometry2rdf<br />Toolforgenerating RDF fromgeometricalinformation<br />Thegeometrycouldbeavailable in GML or WKT<br />The RDF generatedfollowsourGeometryModel<br />Howitworks?<br />6<br />
  7. 7. In a nutshell<br />7<br />
  8. 8. Extractingthe GML fromthe Oracle GeoSpatialDatabases<br />Oracle STO UTIL package <br />SELECT TO_CHAR(SDO_UTIL.TO_GML311GEOMETRY(geometry)) <br /> AS Gml311Geometry<br />FROM "BCN200"."BCN200_0301L_RIO" c<br />WHERE c.Etiqueta='Arroyo'<br />8<br />
  9. 9. Generation of the RDF resources<br />9<br />
  10. 10. Generation of the RDF resources<br />10<br />Java geoobjects<br />
  11. 11. GeometryModel<br />11<br />geoes: http://geo.linkeddata.es/<br />geo: http://www.w3.org/2003/01/geo/wgs84_pos#<br />geoes:ontology/Geometría<br />rdfs:subClassOf<br />rdfs:subClassOf<br />rdfs:subClassOf<br />geoes:ontology/Polígono<br />geoes:ontology/Curva<br />geo:Point<br />formadoPor<br />formadoPor<br />Collection of 2 or more geo:Points<br />39<br />39<br />geo:lat<br />geo:long<br />Collection of 3 or more geo:Points<br />
  12. 12. RDF generatedaccordingtoourGeometryModel<br />1<br />2<br />0<br />0<br />12<br />
  13. 13. Now, we can expressourquery<br />PREFIX geo: <http://www.w3.org/2003/01/geo/wgs84_pos#> <br />SELECT ?subject ?latitude2 ?longitude2 (bif:st_distance(bif:st_point(?longitude,?latitude),<br />bif:st_point(?longitude2,?latitude2)) ) as ?distancia ?latitude ?longitude<br />WHERE {<br /><http://geo.linkeddata.es/resource/Municipio/Mora> geo:geometry ?g .<br /> ?g geo:lat ?latitude. ?g geo:long ?longitude.<br /> ?subjectgeo:geometry ?g2.<br /> ?g2 geo:lat ?latitude2. ?g2 geo:long ?longitude2.<br />} limit 20<br />13<br />
  14. 14. Visualizeitonthemap, and …<br />14<br />
  15. 15. Futurework<br /><ul><li>Includethegeneration
  16. 16. fromshape files
  17. 17. fromother DBMS
  18. 18. ImproveourGeometryModel</li></ul>15<br />
  19. 19. Thank you<br />16<br />
  20. 20. geometry2rdf<br />Victor Saquicela, Boris Villazón-Terrazas, Alexander de León, Luis M. Vilches, and Oscar Corcho<br />Facultad de Informática, Universidad Politécnica de Madrid<br />Campus de Montegancedosn, 28660 Boadilla del Monte, Madrid<br />http://www.oeg-upm.net<br />Phone: 34.91.3366605, Fax: 34.91.3524819<br />

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