W3c app ld-asun(v5)-final

Linked Data Applications: examples Asunción Gómez-Pérez Facultad de Informática, Universidad Politécnica de Madrid Campus de Montegancedo sn, 28660 Boadilla del Monte, Madrid http://www.oeg-upm.net asun@fi.upm.esAcknowledgements:O.Corcho, D. Garijo, D. Vila, L.Vilches, B. Villazón Work distributed under the license Creative Commons Attribution-Noncommercial-Share Alike 3.0 Día W3C en España. 12 de Enero de 2012

Table of content1. The concept2. Foundations3. The process4. Examples • Libraries: http://datos.bne.es • Geo: http://geo.linkeddata.es/ • Metereology:http://aemet.linkeddata.es/ • Travelling: http://webenemasuno.linkeddata.es/ Día W3C en España, 12 de Enero de 2012 2

Complex queries using data from heterogeneous Web pages http://www.bne.es/ http://elviajero.elpais.com/Cervantes enthusiast from Germanyvisiting Madrid and willing to knowmore about Cervantes’ work and life http://www.viaf.org/ http://www.aemet Día W3C en España, 12 de Enero de 2012 *Picture attribution: http://commons.wikimedia.org/wiki/User:Gugerell 3

BD BD BD IGN BD BD BD BNE VIAF AEMET Prisa DBpedia Data Integration BNE Ubicado en Alcalá de Henares 1605 El Quijote Año de Same as Publicación Autor birthPlace M. Cervantes Alcalá de Henares M. Cervantes M. Cervantes creator Year ofpublication Don Quixote1960 Alcalá de Henares Alcalá de HenaresTranslatedinto Temperatura located guíaHebrew 20º Tapas Siglo de Oro VIAF Día W3C en España, 12 de Enero de 2012 4

Linked DataData & Knowledge Visualization Linking RDF Generation Día W3C en España, 12 de Enero de 2012

Table of content1. The concept2. Foundations3. The process4. Examples • Libraries: http://datos.bne.es • Geo: http://geo.linkeddata.es/ • Metereology:http://aemet.linkeddata.es/ • Travelling: http://webenemasuno.linkeddata.es/ Día W3C en España, 12 de Enero de 2012 6

Linked Data: why it is important?• Facilitate data integration • From heterogeous sources • In different formats • Different granularity • In different languages • From different countries© Slide adapted from “5min Introduction to Linked Data”- Olaf Hartig Día W3C en España, 12 de Enero de 2012

Foundations RDF(S) models Unique identifiers: URI identify or name a resource Equivalence links to other datasets Same As Data navigation http://iflastandards.info/ns/fr/frbr/frbrer/C1005 http://iflastandards.info/ns/fr/frbr/frbrer/C1001 Is creator of Person Cer Work Is a Is a Is creator of Cervantes Cer El Quijote http://datos.bne.es/resource/XX1718747 http://datos.bne.es/resource/XX3383563 Same As Same As Cervantes http://viaf.org/viaf/17220427Cervantes http://dbpedia.org/resource/Miguel_de_Cervantes Día W3C en España, 12 de Enero de 2012

FoundationsAligning Models with Owl EquivalentClass Person http://schema.org/Person http://iflastandards.info/ns/fr/frbr/frbrer/C1005 EquivalentClass Person Person http://xmlns.com/foaf/0.1/Person birthPlace Municipality Municipio EquivalentClasshttp://dbpedia.org/resource/Municipalities_of_Spain http://geo.linkeddata.es/ontology/Municipio Is a Is a Alcalá de Henares Same As Alcalá de Henares http://dbpedia.org/page/Alcal%C3%A1_de_Henares http://geo.linkeddata.es/resource/Alcalá de Henares Lessons learnt 1. Reuse existing models 2. Align the data and the concepts. Día W3C en España, 12 de Enero de 2012

El modelo (Ontología) y los datos (2 datasets) Lengua translation Is creator of birthPlaceAño Obra Person Lugar Ontology Publication date Ubicado en Has subject Biblioteca Catalán translation Is creator of birthPlace 1960 El Quijote Cervantes Alcalá de Henares Publication date Has subject Located in Data Vida de Cervantes BNE Día W3C en España, 12 de Enero de 2012 10

El modelo (Ontología) y los datos (2 datasets) Language http://iflastandards.info/ns/fr/frbr/frbrer/C1002 Ontology translation Is creator of work PersonAño http://iflastandards.info/ns/fr/frbr/frbrer/C1001 http://iflastandards.info/ns/fr/frbr/frbrer/C1005 Publication date birthPlace Has subject Located in http://geo.linkeddata.es/ontology/Municipio Biblioteca http://xmlns.com/foaf/0.1/Organization Catalán http://datos.bne.es/resource/XX1924295 translation http://geo.linkeddata.es/resource/Alcalá de Henares Don Quijote de la Mancha Cervantes Saavedra, Miguel de Es autor birthPlace1960 http://datos.bne.es/resource/XX3383563 http://datos.bne.es/resource/XX1718747 Publication date Has subject Located in http://datos.bne.es/resource/bimo0002045496 BNE Vida de Miguel de Cervantes Saavedra http://datos.bne.es/# Data Día W3C en España, 12 de Enero de 2012 11

Table of content1. The concept Specification2. Foundations Modelling3. The process RDF Generation4. Examples Links Generation Publication Exploitation Día W3C en España, 12 de Enero de 2012 12

The Ontology: based on IFLA vocabulariesSpecification Modelling RDF Generation LinksGenerationPublicationExploitation Día W3C en España, 12 de Enero de 2012

Marimba uses the ontology to generate RDFSpecification Modelling RDF Generation LinksGenerationPublicationExploitation BNE Día W3C en España, 12 de Enero de 2012

Marimba links with other resources: VIAF, DNB, SUDOC, LIBRIS, DBpedia http://d-nb.info/gnd/11851993XSpecification DNB Modelling http://viaf.org/viaf/17220427 VIAF Same As RDF Same As http://dbpedia.org/resource/Miguel_de_Cervantes Generation DBpedia Same As LinksGeneration http://datos.bne.es/resource/XX1718747 BNEPublication Same As Same AsExploitation http://www.idref.fr/026774771/id SUDOC http://libris.kb.se/resource/auth/45369 LIBRIS Día W3C en España, 12 de Enero de 2012

Marimba links with other resources: VIAF, DNB, SUDOC, LIBRIS, DBpediaSpecification Modelling RDF Generation LinksGenerationPublicationExploitation Día W3C en España, 12 de Enero de 2012

PublicaciónSpecification Modelling Data publication RDF Metadata publicacion using VOID Generation Links To facilitate the discoveryGeneration • Register in CKAN your datasetPublication • Use to sitemap4rdf to generate the site mapExploitation • Upload the site map to Google and Sindice Día W3C en España, 12 de Enero de 2012

Exploitation Web InterfaceEspecificationSpecification Modelling Model RDF Generation generation LinksPublicationGeneration SPARQL queriesExploitationPublication URI Cervantes select distinct COUNT(?Obras) where {Exploitation http://datos.bne.es/resource/XX1718747 Is author <http://iflastandards.info/ns/fr/frbr/frbrer/P2010> ?Obras } http://linkeddata3.dia.fi.upm.es/bne-demo Día W3C en España, 12 de Enero de 2012

http://geo.linkeddata.es/ Uniform access to the Spanish RDF Specification Geographical Institute Databases Generation 7 geographical DB Geometry2RDF • Granularity • Scale NOR2O • Multilingual Geometry column W3C 4 VocabularyModel O. hasStatisticalData Statistics hasLat/Long WGS84 hasLat/Long SCOVO on hydrOntology hasLocation/isLocated FAO O. FAO Time UNESCO GeopoliticalEGM / ERM 4 hasGeometry hasGeometry ontology W3C TimeGeoNames… GML Legend GML 4 Ontology Specification Specification 4 Thesaurus Día W3C en España, 12 de Enero de 2012

Phase BNE IGN AEMET PRISA INE hydrontology Scovo Modeling SSN ontology Wgs84 DC SIOC Data cube time MARiMbARDF generation geometry2rdf NOR2O CSV parser CSV parser NOR2O Silk Silk Silk NOR2O DBPEDIA Links DNB DBPEDIA VIAF Geolinkeddata.es Geolinkeddata.es generation LIBRIS Geonames Geolinkeddata.es DBPEDIA Publication Pubby sitemap4rdf SPARQL Exploitation map4rdf Día W3C en España, 12 de Enero de 2012 20

Table of content1. The concept2. Foundations3. The process4. Examples • Libraries: http://datos.bne.es • http://linkeddata3.dia.fi.upm.es/bne-demo • Geo: http://geo.linkeddata.es/ • Metereology: http://aemet.linkeddata.es/ • Travelling: http://webenemasuno.linkeddata.es/ Día W3C en España, 12 de Enero de 2012 21

Results http://datos.bne.es http://webenemasuno.linkeddata.es/• Total number of authority records: 4.100.000 • Total number of guides: 27.876• Total number of bibliographic records: • Total number of posts: 32.502 2.390.140 • Total number of locations: 6.838• Total number of RDF triples: 58.053.215 • Total number of RDF triples: 9.462.339• Links (15% authority): 587.520 • Linked sources: 12.750• Linked sources: DBPedia (6024 links) • VIAF GeoLinkedData (6726 links) • SUDOC (Sistema Universitario de Documentación) FR • GND (Auth German National Library) GER • LIBRIS Sweden • DBPedia http://geo.linkeddata.es/Number of geo type phenomenon: 95 (Rivers, mountains, etc.)Number of geo entities: 155.000Total number of RDF triples: 21.564.199Links: 1002 (outlinks) y 6782 (coming)Linked sources: DBpedia y GeoNames (outlinks) AEMET y El Viajero (entry) Día W3C en España, 12 de Enero de 2012 22

Lessons learnt• URI Learn about Linked Data • Follow existing design guidelines for new URIs with UPM official courses in • Reuse existing URIs from authoritative sources one week• Models • Reuse existing models when available • Create new models from authoritative sources • Do not forget to align your model with existing models• Generation • Vertical domains usually require specific tools for generation• Link • Generic link discovery tools performs well in vertical domains • Link to other data sets using bne:Cervantes Dbpedia:cervantes • Equivalence links (sameAs) sameAs Person Municipality • Typed links birthPlace• Discovery • Use sitemap4rdf to allow search engines to find your data• Use an iterative-incremental life cycle in your development Día W3C en España, 12 de Enero de 2012 23

Linked Data Applications: examples Asunción Gómez-Pérez Facultad de Informática, Universidad Politécnica de Madrid Campus de Montegancedo sn, 28660 Boadilla del Monte, Madrid http://www.oeg-upm.net asun@fi.upm.esAcknowledgements:O.Corcho, D. Garijo, D. Vila, L.Vilches, B. Villazón Work distributed under the license Creative Commons Attribution-Noncommercial-Share Alike 3.0 Día W3C en España. 12 de Enero de 2012

W3c app ld-asun(v5)-final

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