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María Poveda Villalón
Ontology Engineering Group
Universidad Politécnica de Madrid, Spain
Publishing Linked Open
Data on t...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Licence
2
§ This work is licensed un...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
About these slides
3
§ This material...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 4
Presentations
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
About María and a bit of OEG
5
Direc...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
About María
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§ Tools
• Ontology eva...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
About María
7
§ Ontologies
o Interne...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Ontology Engineering Group at a glan...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
We lead and manage the Open Data Ins...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Collaboration with companies
10
,,,
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Collaboration with international res...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Participation in standardization act...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
On-going and recent EU research proj...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Our Research Areas
14
Linked Data-ba...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Ontological Engineering
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§ METHONT...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Ontology engineering tools
16
§ Onto...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Linked data Technologies and Project...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Linked data applications
18
Culture ...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 19
Publishing Linked
Open Data on Th...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 20
Why?
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Web of documents
21
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Web of documents
22
充分突出
普通全
記錄
70 6...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Web of documents
23
INEAEMET
Data ex...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Web of documents
24
INEAEMET
Data ex...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Web of documents
25
INEAEMET
Populat...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 26
Why?
No semantics
Isolated data
W...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Population 2013
Llanaves 8Population...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Population 2013
Llanaves 8Population...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
The collection of Semantic Web techn...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 30
Why?
No semantics
Isolated data
W...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Linked Open Data (I)
31
★ On the web...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Linked Open Data (II)
32
★ On the we...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Linked Open Data (III)
33
★ On the w...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Linked Open Data (IV)
34
★ On the we...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Linked Open Data (V)
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★ On the web...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Linked Data Principles
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o Use URIs...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Linked Data Principles
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o Use URIs...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Linked Data Principles
38
o Use URIs...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Linked Data Principles
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o Use URIs...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Linked Data Principles
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o Use URIs...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Vocabularies (ontologies)
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• Vocab...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Ontologies: Knowledegde and Data
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...
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Watermark station Vantage 1 at
Mo...
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Watermark station Vantage 1 at
Mo...
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Watermark station Vantage 1 at
Mo...
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Watermark station Vantage 1 at
Mo...
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sosa:Sensor
ssn:System
Example - ...
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sosa:Sensor
ssn:System
Example – ...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Benefits
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§ Provide semantics/cont...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Implementation
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Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Evaluation
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• Ontology editors • R...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Documentation
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§ Ejemplo owl y htm...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Reuse & Share
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http://vocab.linked...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Handle versions and distributed envi...
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Why? What?
Linked Data Principles...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
datos.bne.es
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Person
(bne:C1005)
W...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Linked Open Data - example
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Wikipedia in RDF example
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http://d...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
schema.org example
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https://search...
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Why? What?
Linked Data Principles...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Wrapping up
§ Need of structured and...
Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018
Questions?
62
Why? What?
Linked Data...
María Poveda Villalón
Ontology Engineering Group
Universidad Politécnica de Madrid, Spain
Publishing Linked Open
Data on t...
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Publishing Linked Open Data on the Web & the Role of Ontologies

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Publishing Linked Open Data on the Web & the Role of Ontologies

  1. 1. María Poveda Villalón Ontology Engineering Group Universidad Politécnica de Madrid, Spain Publishing Linked Open Data on the Web & the Role of Ontologies mpoveda@fi.upm.es @MariaPovedaV 4th April 2018 irstea
  2. 2. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Licence 2 § This work is licensed under Creative Commons Attribution – Non Commercial – Share Alike License § You are free: o to Share — to copy, distribute and transmit the work o to Remix — to adapt the work § Under the following conditionss o Attribution — You must attribute the work by inserting • “[source http://www.oeg-upm.net/]” at every reused slide • A slide declaring: “This material is partially based on “Publishing Linked Open Data on the Web & • the role of ontologies” by María Poveda Villalón” o Non-commercial o Share-Alike
  3. 3. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 About these slides 3 § This material has been elaborated by María Poveda Villalón reusing content from her colleagues at OEG: o Asunción Gómez-Pérez o Oscar corcho o Raúl García-Castro o Mari Carmen Suárez de Figueroa-Baonza o Etc.
  4. 4. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 4 Presentations
  5. 5. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 About María and a bit of OEG 5 Directors: Asunción Gómez-Pérez, Oscar Corcho Position: 8º ranking UPM (200 groups) Research group (30 people) o 3 Full Professors o 5 Associate Professors o 3 Assistant Professors o 7 Senior Postdocs o 6 PhD Students o 2 MSc and BSc Students o 2 software engineers o 1 system administrator o 2 project managers 170+ Collaborations 50+ Visitors http://www.oeg-upm.net/ https://github.com/oeg-upm @oeg-upm Post doc, Ontological Engineering, ontology development, evaluation, linked (open) data https://github.com/mariapoveda @MaríaPovedaV
  6. 6. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 About María 6 § Tools • Ontology evaluation - OOPS! OntOlogy Pitfall Scanner http://oops.linkeddata.es/ • Vocabulary registry - OEG vocabularies http://vocab.linkeddata.es/ - Smart Cities http://smartcity.linkeddata.es/ • Vocabulary distributed development - OnToology http://ontoology.linkeddata.es/ § Methodologies § Linked Open Terms (work in progress) http://lot.linkeddata.es/
  7. 7. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 About María 7 § Ontologies o Internet of Things • SAREF extensions, VICINITY o Web of Things o Scientific reviews o Agricultural datasets o Products and services for cibersecurity o … IoT WoT Scientific Reviews Agri datasets
  8. 8. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Ontology Engineering Group at a glance 8 Ø Created in1995 Ø World-wide known in the research areas § Ontologies § Semantic Web and Linked Data § Multilingual linked Data § Open Data § eScience Ø Projects (> 12M€) § 27 EU projects (7 as coordinator) § 54 National Projects § 27 contracts with companies Ø Publications § > 100 journal papers § > 400 International conferences and book chapters § 7 Books Ø Impact of publications § Asunción Gómez-Pérez (h:58, 20,000 citations) § Oscar Corcho García (h: 44, 11,000 citations) Ø Services to the community § Host esDbpedia § Host linkeddata.es § Ontology development services Ø Awards and Prizes § Ada Byron § Juan López de Peñalver § Fujitsu, Open data, ISWC, ESWC § SUR Awards Watson for Tech. Watch Ø Supervision of students § 28 Ph.D thesis (9 awarded bestthesis prize) § >150 MS.C thesis and BS.C Ø Events organization § 11 editions of the International Summer School on Ontological Engineering and the Semantic Web § > 50 WS and tutorials Ø Standardization activities § >25 @ W3C, ISO, OASIS, etc. Ø Mobility § PhD students: 3-6 months abroad § Postdocs: 1 month every 2 years Ø Visibility § Program chairs of ESWC, ISWC, KCAP, EKAW, TKE, TIA § Editorial board of Journals § Invited talks at conferences and events § Programme Committee presence
  9. 9. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 We lead and manage the Open Data Institute @ Madrid 9 1. R&D on open data 2. ODI training courses 3. ODI open data certificates 4. Organization of events: datathons, hackathons, seminars, etc. 5. Ecosystem of stakeholders on the publication and consumption of Open Data § http://madrid.theodi.org/
  10. 10. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Collaboration with companies 10 ,,,
  11. 11. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Collaboration with international research groups 11 Univ. of Amsterdam Free Univ. of Amsterdam DFKI Univ. of Augsburg Univ. of Karlsruhe Univ. of Koblenz Univ. of Hannover Univ. of Mannheim Univ. of Bielefeld Forschungszentrum Informatik Inst. Angewandte Informatik EV KIT UMC-Mainz Open University Oxford University Univ. of Manchester Univ. of Liverpool Univ. of Sheffield Univ. of Aberdeen Univ. of Edinburgh Univ. of Southampton Univ. of Hull Univ. of Bedfordshire Bournemouth Univ. Univ. of Huddersfield CNR Univ. of Trento Univ. of Bolzano Univ. Studi Roma La Sapienza Politecnico di Torino KSL. Stanford Univ. Wright State Univ. Univ. of Galway (DERI) Trinity College Dublin Nat. Univ. of Ireland Maynooth irstea INRIA W3C-ERCIM Centre Scientifique et Technique du Batiment Univ. of Athens TUC Univ. of Creete Centre for Research and Technology Hellas Free Univ. of Brussels Univ. of Wien Univ. of NR & ALS Univ. of Innsbruck RMIT Univ. Commonwealth Scientific and Industrial Research Org. Ústav Informatiky Academy of Sciences Univ. of Tel AvivUniv. of Brasilia Univ. of Chile Univ. of Zurich Southeast Univ. (China) Zaporizhzhya Nat. Univ. (Ukraine) USC UCoruña UPV UniZar UPF UJaen UnEx UCM
  12. 12. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Participation in standardization activities 12 W3C- World Wide Web Consortium § Web of Things Working Group § Web of Things Interest Group § LBD Community Group § BPMLOD: Best Practices for Multilingual Linked Open Data Community Group § CSV on the Web Working Group § eGovernmentInterest Group § Library Linked Data Incubator Group § LD4LT: Linked Data for Language Technologies Community Group § LDP: Linked Data Platform Working Group § Media Annotations Working Group § ODRL Community Group § Ontolex: Ontology Lexica Community Group § prov: Provenance Working Group § prov-xg: Provenance Incubator Group § Research Object for Scholarly Communication Community Group § RDB2RDFWorking Group § Semantic Sensor Networks Community Group § SPARQL Working Group § SDW: Spatial Data on the Web Working Group § RDF Stream Processing Community Group § Open Linked Education Community Group § Web of Things Working Group § Bioschemas for Lifesciences Community Group OASIS § OSLC: Open Services for Lifecycle Collaboration ETSI § SmartM2M § ISG CIM AENOR § Comité Técnico de Normalización CTN178 Ciudades Inteligentes.Norma UNE 178301 Open Knowledge Foundation § Working Group on Open Data in Linguistics ISO -International Organization for Standardization § ISO/TC 19150 - Geographic Information – Ontology § Ad-hoc Group Linked Data – ISO/TC211ISO/TC 37/SC 1 Principles and methods § ISO/TC 37/SC 3 Systems to manage terminology, knowledge and content § ISO/TC 37/SC 4 Language resource management Dublin Core Metadata Initiative (CMI) § DCMI Metadata Provenance Task Group § DCMI Vocabulary ManagementCommunity § DCMI Bibliographic Metadata Task Group Europeana Network § Technology Developer and Knowledge Partner /Expert International Federation of Library Associations (IFLA) § Semantic Web Special Interest Group
  13. 13. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 On-going and recent EU research projects 13 § STARS4ALL (H2020- Coordinator): citizen science (light pollution) § VICINITY (H2020): Open virtual neighbourhood network to connect IoT infrastructures and smart objects § SlideWiki (H2020): educational material and open data § Mobile-AGE (H2020): open data for elderly people § TransformingTransport (H2020): open data about transport § BigStorage (H2020 – Coordinator): Storage-based Convergence between HPC and Cloud to handle Big Data (ETN) § easyTV (H2020): Easing the access of Europeans with disabilities to converging media and content § Lynx (H2020 – Coordinator): Building the Legal Knowledge Graph for Smart Compliance Services in Multilingual Europe § GoF4R (H2020): Governance of the Interoperability Framework for Rail and Intermodal Mobility § TheyBuyForYou (H2020): generating and exploiting open data about public contracting § DELTA (H202): energy efficiency § Recent o 3cixty (H2020 EIT Digital): city data markets and tourism o SemDATA (FP7 - Coordinator): semantic data management (Marie Curie IRSES) o KOPAR (FP7): semantic e-Science (Marie Curie) o SIMON (FP7): transport data and accessibility o CLARITY (H2020 CSA): open data impact analysis and roadmapping o DrInventor (FP7): opening new opportunities to general research communities
  14. 14. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Our Research Areas 14 Linked Data-based Data Integration Open Science (Social) Semantic Web Data-driven language technologies Ontological Engineering 1995 19972000 2004 2008
  15. 15. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Ontological Engineering 15 § METHONTOLOGY and NeOn methodologies for building Networks of Ontologies oWorld-wide used METHONTOLOGY (1997) NeOn (2010) Ontologies • Metadata Vocabularies (@W3C) • Provenance (@W3C) • Internet of Things (@W3C @ETSI) • Geography (@IGN, CENIG) • (Multi)-Media (@W3C) • Knowledge Management • Software Engineering (OSLC@OASIS) • Tourism • User experience • AENOR vocab. for smart cities • Libraries (@BNE) • Health (@WHO) • e-Science • … Knowledge Resources O. Specification O. Conceptualization O. ImplementationO. Formalization 1 Non Ontological Resource Reuse Non Ontological Resource Reengineering 3 Ontological Resource Reuse Ontology Restructuring (Pruning, Extension, Specialization, Modularization) 8 O. Localization 9 Ontology Support Activities: Knowledge Acquisition (Elicitation); Documentation; Configuration Management; Evaluation (V&V); Assessment 1,2,3,4,5,6,7,8, 9 O. Aligning O. Merging Alignments Ontological Resource Reengineering 4 6 5 5 RDF(S) OWL Flogic 4 6 2 2 3 4 5 6 6 Ontology Design Pattern Reuse Ontological Resources 7 O. Repositories and Registries Flogic RDF(S) OWL O. Design Patterns 2 Non Ontological Resources Thesauri DictionariesGlossaries Lexicons Taxonomies Classification Schemas Scheduling
  16. 16. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Ontology engineering tools 16 § Ontology evaluation o OOPS! OntOlogy Pitfall Scanner http://oops.linkeddata.es/ § Vocabulary documentation o HTML: Widoco https://github.com/dgarijo/Widoco/ o Diagrams: AR2DTool http://ar2dtool.linkeddata.es/ o Vocabulary registry • OEG vocabularies http://vocab.linkeddata.es/ • Smart Cities http://smartcity.linkeddata.es/ o Vocabulary distributed development o OnToology http://ontoology.linkeddata.es/
  17. 17. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Linked data Technologies and Projects 17 Geometry2RDF shp2RDF geo REST service annotation Sem4TagsMarimbaNOR2OMorph SPARQL -Stream Linked Library Data VisualisationMap4RDF Sensor Data Visualisation Visualization RDF Generation and Linking Conditional Access Diagnoseand repair LDP4j Access Agora
  18. 18. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Linked data applications 18 Culture (@BNE) Geographical (@IGN) Metereological (@AEMET) News and Media (@Prisa, RTVE) Internet of Things( @CRTM, Bike sharingsystem) Smart Cities and Open Data (@ Zaragoza, GobAragón, Jacathon, Catalogues) Host of esDBpedia ApplicationLifecycle M. (BancoSantander)
  19. 19. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 19 Publishing Linked Open Data on The Web and the role of Ontologies
  20. 20. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 20 Why?
  21. 21. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Web of documents 21
  22. 22. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Web of documents 22 充分突出 普通全 記錄 70 6c 65 6e 6f 20 65 78 74 72 61 6f 72 64 69 6e 61 72 69 6f 0d 0a 70 6c 65 6e 6f 20 6f 72 64 69 6e 61 72 69 6f 0d 0a 61 63 74 61 0d 0a Need: semantics
  23. 23. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Web of documents 23 INEAEMET Data exposed in the Web via HTML
  24. 24. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Web of documents 24 INEAEMET Data exposed in the Web via HTML Municipalities with less population where there is more snow?
  25. 25. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Web of documents 25 INEAEMET Population 2013 Llanaves 8Population 2014 Llanaves 8 Population 2015 Llanaves 8 Measurement 13:00:0021nov2013 Llanaves snow 6m Measurement 13:10:0021nov2013 Llanaves snow 6m Measurement 13:20:0021nov2013 Llanaves snow 6m Need: linking
  26. 26. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 26 Why? No semantics Isolated data What?
  27. 27. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Population 2013 Llanaves 8Population 2014 Llanaves 8 Population 2015 Llanaves 8 Measurement 13:00:0021nov2013 Llanaves snow 6m Measurement 13:10:0021nov2013 Llanaves snow 6m Measurement 13:20:0021nov2013 Llanaves snow 6m Publishing linked data 27 INEAEMET Municipality Observation Population has population measured in
  28. 28. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Population 2013 Llanaves 8Population 2014 Llanaves 8 Population 2015 INE:Llanaves 8 Measurement 13:00:0021nov2013 Llanaves snow 6m Measurement 13:10:0021nov2013 Llanaves snow 6m Measurement 13:20:0021nov2013 INE:Llanaves snow 6m Publishing linked data 28 INEAEMET Municipality Observation Population has population measured in
  29. 29. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 The collection of Semantic Web technologies provides an environment where application can query that data, draw inferences using vocabularies, etc. Web semántica y datos enlazados 14 https://www.w3.org/standards/semanticweb/data Linked Data is the collection of interrelated datasets on the Web Population 2013 Llanaves 8Population 2014 Llanaves 8 Population 2015 INE:Llanaves 8 Measurement 13:00:0021nov2013 Llanaves snow 6m Measurement 13:10:0021nov2013 Llanaves snow 6m Measurement 13:20:0021nov2013 INE:Llanaves snow 6m INEAEMET Municipality Observation Population has population measured in
  30. 30. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 30 Why? No semantics Isolated data What? Linked Data How? Semantic Web
  31. 31. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Linked Open Data (I) 31 ★ On the web (whatever format) with an open licence • e.g: pdf
  32. 32. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Linked Open Data (II) 32 ★ On the web (whatever format) with an open licence • e.g: pdf ★ ★ Machine-readable, structured • e.g: excel table ftp://ftp.ibge.gov.br/
  33. 33. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Linked Open Data (III) 33 ★ On the web (whatever format) with an open licence • e.g: pdf ★ ★ Machine-readable, structured • e.g: excel table ★★★ Non-proprietary format • e.g: csv instead of excel
  34. 34. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Linked Open Data (IV) 34 ★ On the web (whatever format) with an open licence • e.g: pdf ★ ★ Machine-readable, structured • e.g: excel table ★★★ Non-proprietary format • e.g: csv instead of excel ★★★★ RDF & W3C standards • e.g: use URIs as identifiers http://datos.bne.es/persona/XX1718747.rdf
  35. 35. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Linked Open Data (V) 35 ★ On the web (whatever format) with an open licence • e.g: pdf ★ ★ Machine-readable, structured • e.g: excel table ★★★ Non-proprietary format • e.g: csv instead of excel ★★★★ RDF & W3C standards • e.g: use URIs as identifiers ★★★★★ Link to other data • e.g: point to URIs from other data providers http://datos.bne.es/persona/XX1718747.rdf
  36. 36. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Linked Data Principles 36 o Use URIs to identify things (everything, persons, works, places, etc.) • https://w3id.org/people/mpoveda • https://plus.google.com/+MaríaPovedaVillalón
  37. 37. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Linked Data Principles 37 o Use URIs to identify things (everything, persons, works, places, etc.) • https://w3id.org/people/mpoveda • https://plus.google.com/+MaríaPovedaVillalón o Use HTTP protocol allowing others to retrieve information about those URIs https://www.w3.org/DesignIssues/LinkedData.html
  38. 38. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Linked Data Principles 38 o Use URIs to identify things (everything, persons, works, places, etc.) • https://w3id.org/people/mpoveda • https://plus.google.com/+MaríaPovedaVillalón o Use HTTP protocol allowing others to retrieve information about those URIs o Provide useful information using standards as the RDF data model to describe resources https://www.w3.org/DesignIssues/LinkedData.html Subject Objectpredicate <http://w3id.org/people/mpoveda> a foaf:Person . <http://w3id.org/people/mpoveda> foaf:family_name "Poveda-Villalón"^^xsd:string . <http://w3id.org/people/mpoveda> foaf:givenname "María"^^xsd:string ; <http://w3id.org/people/mpoveda> foaf:holdsAccount<https://twitter.com/MariaPovedaV> . …
  39. 39. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Linked Data Principles 39 o Use URIs to identify things (everything, persons, works, places, etc.) • https://w3id.org/people/mpoveda • https://plus.google.com/+MaríaPovedaVillalón o Use HTTP protocol allowing others to retrieve information about those URIs o Provide useful information using standards as the RDF data model to describe resources o Link to other URIs https://www.w3.org/DesignIssues/LinkedData.html Subject Objectpredicate <http://w3id.org/people/mpoveda> a foaf:Person . <http://w3id.org/people/mpoveda> foaf:family_name "Poveda-Villalón"^^xsd:string . <http://w3id.org/people/mpoveda> foaf:givenname "María"^^xsd:string . <http://w3id.org/people/mpoveda> foaf:based_near <http://dbpedia.org/resource/Madrid> . <http://w3id.org/people/mpoveda> foaf:schoolHomepage <http://www.fi.upm.es/> . …
  40. 40. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Linked Data Principles 40 o Use URIs to identify things (everything, persons, works, places, etc.) • https://w3id.org/people/mpoveda • https://plus.google.com/+MaríaPovedaVillalón o Use HTTP protocol allowing others to retrieve information about those URIs o Provide useful information using standards as the RDF data model to describe resources o Link to other URIs https://www.w3.org/DesignIssues/LinkedData.html Subject Objectpredicate <http://w3id.org/people/mpoveda> a foaf:Person . <http://w3id.org/people/mpoveda> foaf:family_name "Poveda-Villalón"^^xsd:string . <http://w3id.org/people/mpoveda> foaf:givenname "María"^^xsd:string . <http://w3id.org/people/mpoveda> foaf:based_near <http://dbpedia.org/resource/Madrid> . <http://w3id.org/people/mpoveda> foaf:schoolHomepage <http://www.fi.upm.es/> . …
  41. 41. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Vocabularies (ontologies) 41 • Vocabularies define the concepts and relationships used to describe and represent an area of concern. Definition taken from: http://www.w3.org/standards/semanticweb/ontology • An ontology is a formal, explicit specification of a shared conceptualization Definition taken from: Studer, R., Benjamins, V. R., & Fensel, D. (1998). Knowledge engineering: principles and methods. Data & knowledge engineering Define terms, hierarchies, properties, relations, etc. Use standard languages like RDF Schema & OWL Slide adapted from “Soporte para desarrollo de vocabularios para datos abiertos: Un caso de uso para contaminación acústica” Oscar Corcho, Paola Espinoza y María Poveda
  42. 42. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Ontologies: Knowledegde and Data 42 Ontology Instances Knowledge level Concepts Taxonomies Relationships Attribuites Axioms Data level Instances of concepts Relations between intstances
  43. 43. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 43 Watermark station Vantage 1 at Montoldre Sensor Model Value Timestamp Probe 1 Davis 6440 150 2012-10-08 11:57:17 Probe 2 Davis 6440 130 2012-10-08 11:57:17 … sosa:Sensor ssn:System Example sosa:Observation time:TemporalEntity owl:Thing ex:probe1 sosa:observes sosa:resultTime sosa:hasSimple Result sosa:hasSubSystem <<subclassOf>> Ontology level ex:probe2 ex:watermark Station rdf:type sosa:hasSub System ex:obs1probe1 sosa:observes Data level “150” ex:obs1probe2 sosa:observes “130” sosa:hasSimpleResult sosa:hasSimpleResult
  44. 44. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 44 Watermark station Vantage 1 at Montoldre Sensor Model Value Timestamp Probe 1 Davis 6440 150 2012-10-08 11:57:17 Probe 2 Davis 6440 130 2012-10-08 11:57:17 … sosa:Sensor ssn:System Example sosa:Observation time:TemporalEntity owl:Thing ex:probe1 sosa:observes sosa:resultTime sosa:hasSimple Result sosa:hasSubSystem <<subclassOf>> Ontology level ex:probe2 ex:watermark Station rdf:type sosa:hasSub System ex:obs1probe1 sosa:observes Data level “150” ex:obs1probe2 sosa:observes “130” sosa:hasSimpleResult sosa:hasSimpleResult Give me all sensors in the system
  45. 45. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 45 Watermark station Vantage 1 at Montoldre Sensor Model Value Timestamp Probe 1 Davis 6440 150 2012-10-08 11:57:17 Probe 2 Davis 6440 130 2012-10-08 11:57:17 … sosa:Sensor ssn:System Example – Small Inference sosa:Observation time:TemporalEntity owl:Thing ex:probe1 sosa:observes sosa:resultTime sosa:hasSimple Result sosa:hasSubSystem <<subclassOf>> Ontology level ex:probe2 ex:watermark Station rdf:type sosa:hasSub System ex:obs1probe1 sosa:observes Data level “150” ex:obs1probe2 sosa:observes “130” sosa:hasSimpleResult sosa:hasSimpleResult Give me all systems
  46. 46. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 46 Watermark station Vantage 1 at Montoldre Sensor Model Value Timestamp Probe 1 Davis 6440 150 2012-10-08 11:57:17 Probe 2 Davis 6440 130 2012-10-08 11:57:17 … sosa:Sensor ssn:System Example sosa:Observation time:TemporalEntity owl:Thing ex:probe1 sosa:observes sosa:resultTime sosa:hasSimple Result sosa:hasSubSystem <<subclassOf>> Ontology level ex:probe2 ex:watermark Station rdf:type sosa:hasSub System ex:obs1probe1 sosa:observes Data level “150” ex:obs1probe2 sosa:observes “130” sosa:hasSimpleResult sosa:hasSimpleResult Give me all devices
  47. 47. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 47 sosa:Sensor ssn:System Example - Combine ontologies - Multi inheritance sosa:Observation time:TemporalEntity owl:Thing ex:probe1 sosa:observes sosa:resultTime sosa:hasSimple Result sosa:hasSubSystem <<subclassOf>> Ontology level ex:probe2 ex:watermark Station rdf:type sosa:hasSub System ex:obs1probe1 sosa:observes Data level “150” ex:obs1probe2 sosa:observes “130” sosa:hasSimpleResult sosa:hasSimpleResult Ontology level saref:Sensor saref:Device Give me all devices
  48. 48. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 48 sosa:Sensor ssn:System Example – Complementary information sosa:Observation time:TemporalEntity owl:Thing ex:probe1 sosa:observes sosa:resultTime sosa:hasSimple Result sosa:hasSubSystem <<subclassOf>> Ontology level ex:probe2 ex:watermark Station rdf:type sosa:hasSub System ex:obs1probe1 sosa:observes Data level “150” ex:obs1probe2 sosa:observes “130” sosa:hasSimpleResult sosa:hasSimpleResult Ontology level saref:Sensor saref:Device rdfs:Literal saref:hasModel “Davis 6440” saref:hasModel
  49. 49. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Benefits 49 § Provide semantics/context § Disambiguation, prevent errors § Facilitate data reuse § Facilitate data integration o Different formats, sources, schemas, languages.. § Facilitate dataset maintenance § Reasoning, inference § Mechanism used in the Web of Data
  50. 50. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Implementation 50
  51. 51. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Evaluation 51 • Ontology editors • Reasoners: • Pellet • Fact • Hermit • etc + http://oops.linkeddata.es
  52. 52. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Documentation 52 § Ejemplo owl y html https://github.com/dgarijo/Widoco/
  53. 53. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Reuse & Share 53 http://vocab.linkeddata.es/ Organizational level (OEG) Community http://lov.okfn.org
  54. 54. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Handle versions and distributed environments 54 Evaluation reports HTML documentation Diagrams Permanent Ids Content negotiation Bundle Pre-view http://ontoology.linkeddata.es
  55. 55. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 55 Why? What? Linked Data Principles How? Technology Who? Ontologies No semantics Isolated data Semantic Web
  56. 56. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 datos.bne.es 56 Person (bne:C1005) Work (bne:C1001) Expression (bne:C1002) Manifestation (bne:C1003) Item (bne:C1004) creator of (OP5001) realized through (OP1002) realization of (OP2002) materialized in (OP2001) materialization of (OP3002) exemplified by (OP3001) exemplar of (OP4001) created by (OP1005) is subject (OP1007) has subject (OP1006) Work (bne:C1001) Concept (skos:Concept) has subject (OP1010) has subject (OP3008) is subject (OP5003) has subject (OP1008)
  57. 57. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Linked Open Data - example 57
  58. 58. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Wikipedia in RDF example 58 http://dbpedia.org/resource/Institut_national_de_recherche_en_sciences_et_technologies_pour_l'environnement_et_l'agriculture
  59. 59. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 schema.org example 59 https://search.google.com/structured-data/testing-tool https://www.ennetflix.mx/sidetracked/22659 Transparencia adaptada de “Vocabularies for Linked Data” de Raúl García Castro, Asunción Gómez Pérez y María Poveda Villalón
  60. 60. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 60 Why? What? Linked Data Principles How? Technology Who? Examples No semantics Isolated data Ontologies Semantic Web
  61. 61. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Wrapping up § Need of structured and annotated data on the Web § Resources are not open by default § Take care of ontologies as we do for data (publish, document, license, etc.)… they can also be 5 stars: ★ On the web (whatever format) with an open licence (pdf, UML, + text describing your model) ★ ★ Structured format (OWL) ★★★ Include descriptions (labels, comments, provenance) ★★★★ Different formats (ttl, rdf/xml…) ★★★★★ Link to other vocabularies 61
  62. 62. Publishing Linked Open Data onthe Web & the Role of Ontologies – Clermont-Ferrand2018 Questions? 62 Why? What? Linked Data Principles How? Technology Who? Examples No semantics Isolated data Thanks for you attention Ontologies Semantic Web
  63. 63. María Poveda Villalón Ontology Engineering Group Universidad Politécnica de Madrid, Spain Publishing Linked Open Data on the Web & the Role of Ontologies mpoveda@fi.upm.es @MariaPovedaV 4th April 2018 irstea

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