Linked data and Muruca @ COST a32 - Munich
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The document discusses Linked Open Data and the Semantic Web. It explains that the Semantic Web aims to evolve the classic web by adding formal representations of data and knowledge that can be processed by machines. This will allow information on the web to be correlated and presented in a more intelligent way. Key points include using languages like RDF to represent data, creating ontologies to define vocabularies, and linking open data together to form a global knowledge graph that machines can process to provide smarter applications and services.
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Linked data and Muruca @ COST a32 - Munich
- 1. Linked Open Data ... and why you should care. Christian Morbidoni <christian.morbidoni@gmail.com> This work is licensed under a Creative Commons Attribution-NoDerivs 2.5 Italy SeMedia Università Politecnica delle Marche Sunday, November 21, 2010
- 2. The Semantic Web is... - A W3C initiative. The goal is to evolve the “classic” Web. - A big community of researchers and developers - A set of languages for data and knowledge representation - Formal models - A growing set of software tools supporting a “smarter” Web Sunday, November 21, 2010
- 3. WWW: basic components - HTTP to trasfer data - GET /index.html - URLs to identify resources - http://www.google.com/search?source=ig&hl=en&rlz=&=&q=semantic+web - HTML to represent resources - <html><head><title>… - GCI, scripting, etc. to develop applications Sunday, November 21, 2010
- 4. The “dumb” Web - The Web is great as it contains a lot of information, and sometimes it is easy to find what you look for - But sometimes it behaves not so smartly - We find out that Information that should be naturally correlated... in the and are not Sunday, November 21, 2010
- 5. The conference example Sunday, November 21, 2010
- 6. The conference example Sunday, November 21, 2010
- 7. The conference example Sunday, November 21, 2010
- 8. The conference example “Which one is hosting the ESWC?!??!” “Why the aldemar web site does not even know that the ESWC exists?!?!” Sunday, November 21, 2010
- 9. Dumb web in action... Finally after a lot of clicks I found a couple of hotels for my budget Sunday, November 21, 2010
- 10. Dumb web in azione ... ... but what is the closest to the conference venue? Sunday, November 21, 2010
- 11. Dumb web in azione ... ... but what is the closest to the conference venue? Sunday, November 21, 2010
- 12. Dumb web in azione ... ... but what is the closest to the conference venue? Sunday, November 21, 2010
- 13. Dumb web in azione ... • After a lot of copy/paste into goole maps i find out • .. but what a pain.After all it is a “mechanical” work and ... • ... probably other people need to to the very same thing ... • Why should I do it? Why not a machine?!?!? Sunday, November 21, 2010
- 14. A bit of smartness finally ... Sunday, November 21, 2010
- 15. A bit of smartness finally ... Greek hotel owner There are many systems like this.Why should I put the same info again and againg.And modify them all once I need to change them. Sunday, November 21, 2010
- 16. So? - We do not need more intelligent applications ... - We just need to let them find the right data at the right time! Sunday, November 21, 2010
- 17. Dumb Web revisited... - We want addresses to be immediately recognized as such by a machine ... - ... than we want them to be sent automatically to gmaps (with one click) - ... but we also what this to happen without a priori agreement Sunday, November 21, 2010
- 18. semantics is hidden, only humans (and not all of them) can extract it from documents Sunday, November 21, 2010
- 19. machines are helpless Sunday, November 21, 2010
- 20. unless... Sunday, November 21, 2010
- 21. we explicitly say to machines what we are talking about ... and we keep it simple... ... and we use simple, structured language that they can understand. Sunday, November 21, 2010
- 22. This is what the Semantic Web is all about. The Resource Description Framework (RDF) is the basic instrument Sunday, November 21, 2010
- 23. Sunday, November 21, 2010
- 24. Information can be useless without a priori knowledge Machines needs at least some vocabulary and basic rules of the game That is where ontologies come in Sunday, November 21, 2010
- 25. Ontologies: vocabularies for your domain Source Artistic Medium Fresco Mosaic Manuscript Book sub class of sub class of sub class of sub class of sub class of Person Artist Caliph sub class of sub class of Sunday, November 21, 2010
- 26. Ontologies: vocabularies for your domain Source Artistic Medium Fresco Mosaic Manuscript Book sub class of sub class of sub class of sub class of sub class of Person Artist Caliph sub class of sub class of Divine Comedy type Dante Alighieri type San Petronio Fresco type Prophet Muhammad type Sunday, November 21, 2010
- 27. Ontologies: vocabularies for your domain Source Artistic Medium Fresco Mosaic Manuscript Book sub class of sub class of sub class of sub class of sub class of Person Artist Caliph sub class of sub class of Divine Comedy type Dante Alighieri type San Petronio Fresco type Prophet Muhammad type has author depicts Sunday, November 21, 2010
- 28. Linking ? The Web is great because it is so simple to jump from a web page to the others With the Semantic Web it should be easy to jump from a database to an other: Image separated clouds of data that are ready to interoperate with each other ... as if it was a unique world wide database Sunday, November 21, 2010
- 29. Web of Documents vs.Web of Data Presentation Layer Data representation layer Hyperlinks ? RDF Data RDF Data RDF Data RDF Data ??? semantically defined relations ??? WebInfrastructure Sunday, November 21, 2010
- 30. RDF and Web pages Sunday, November 21, 2010
- 31. RDF and Web pages RDF Data http://example.com/home.htm http://example.com/home.rdf Web Browser / Application Sunday, November 21, 2010
- 32. RDF and Web pages RDF Data http://example.com/home.htm http://example.com/home.rdf Web Browser / Application RDF Data Web Browser / Application HTTP: GET http://example.com/home/ CONTENT-TYPE application/rdf+xml HTTP: GET http://example.com/home/ CONTENT-TYPE text/html Sunday, November 21, 2010
- 33. RDF and Web pages RDF Data http://example.com/home.htm http://example.com/home.rdf Web Browser / Application <html> ...... <rdf> ........ </rdf> ....... </html> RDF Data RDF Data Web Browser / Application HTTP: GET http://example.com/home/ CONTENT-TYPE application/rdf+xml HTTP: GET http://example.com/home/ CONTENT-TYPE text/html Sunday, November 21, 2010
- 34. Sunday, November 21, 2010
- 35. DONATELLO FLORENCEis from BRUNELLESCHI worked with made DAVID FROM wikipedia Sunday, November 21, 2010
- 36. DONATELLO FLORENCEis from BRUNELLESCHI worked with made is a Marble Statue Museo Nazionale del Bargello is exposed in DAVID FROM wikipedia FROM the museum web site Sunday, November 21, 2010
- 37. The vision: a collaborative knowledge graph Note Note Note Buraq Prophet Muhammad Mecca Buraq.jpg/2134 Buraq.txt/87874 is part of is part of mentions mentions is related to Sunday, November 21, 2010
- 38. The vision: a collaborative knowledge graph Note Note Note Note Note Buraq Prophet Muhammad Mecca Buraq.jpg/2134 Buraq.txt/87874 is part of is part of mentions mentions is related to Sunday, November 21, 2010
- 39. The vision: a collaborative knowledge graph Note Note Note Note Note Buraq Prophet Muhammad Mecca Buraq.jpg/2134 Buraq.txt/87874 is part of is part of mentions mentions is related to A Book comments on An artist reproduced Sunday, November 21, 2010
- 40. The vision: a collaborative knowledge graph Note Note Note Note Note Note Note Note Buraq Prophet Muhammad Mecca Buraq.jpg/2134 Buraq.txt/87874 is part of is part of mentions mentions is related to A Book comments on An artist reproduced Sunday, November 21, 2010
- 41. The vision: a collaborative knowledge graph Note Note Note Note Note Note Note Note Buraq Prophet Muhammad Mecca Buraq.jpg/2134 Buraq.txt/87874 is part of is part of mentions mentions is related to A Book comments on An artist reproduced An other Book is a revision of is located in A scholar wrote Sunday, November 21, 2010
- 42. The vision: a collaborative knowledge graph Note Note Note Note Note Note Note Note Buraq Prophet Muhammad Mecca Buraq.jpg/2134 Buraq.txt/87874 is part of is part of mentions mentions is related to A Book comments on An artist reproduced An other Book is a revision of is located in A scholar wrote Editorial Policy (peer review?) Publish on the Web Sunday, November 21, 2010
- 43. An important consideration The Semantic Web is not a magic thing It doesn’t necessarily mean artificial intelligence It aims at better structuring knowledge so that: Independently produced knowledge can be more easily merged Applications can be smarter in collecting, managing and presenting knowledge Sunday, November 21, 2010
- 44. Feb 2008 Sunday, November 21, 2010
- 45. Giu 2009 Sunday, November 21, 2010
- 46. http://muruca.org - open source tools for accessing the linked data now - specifically targeted to small-medium communities Sunday, November 21, 2010
- 47. Thank you! Sunday, November 21, 2010
- 48. Muruca Semantic WebOpen Source Open Access Sunday, November 21, 2010