Aplicații Web Semantice - Descriere Proiect

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Aplicații Web Semantice - Descriere Proiect

  1. 1. Semantic Web Applications Project Description
  2. 2. Project description <ul><li>The project will allow you to pass through all the stages of development of a semantic web application </li></ul><ul><li>This document presents the steps of the project from end to start </li></ul><ul><li>The purpose of the document is for you to understand which are the milestones, their importance and how they are linked </li></ul>
  3. 3. BBC Music Web Site - Page of an artist A semantic web site
  4. 4. If we scroll down we discover Description comes from wikipedia Links and informations come from MusicBrainz
  5. 5. What ’s behind? Data provided also as rdf Artists indentified through URI ’s Links to other relevant information about the artist
  6. 6. What ’s even deeper ? Basic information about the data – what does it describe – an artist (solo) that has a name Biographical info This resource is also described somewhere else! Remember the links from the html page? Data about songs and records
  7. 7. Where does the data come from? Query language for RDF meta-data Bookmark this link 
  8. 8. <ul><li>You can query the linked data using sparql </li></ul>
  9. 9. Where does the raw data come from? Public websites Usually from YOU (as data is created/gathered socially) Data is extracted and transformed into linked data using patterns and/or natural language processing techniques and/or machine learning techniques
  10. 10. Where do we do with the data we extract from web sites? Describe it using an ontology or many ontologies Frbr ontology Foaf ontology Event ontology
  11. 11. Link to other datasets
  12. 12. Create the ontology Develop a Semantic Web Application Extract linked data into a semantic repository Establish a SPARQL endpoint Choose a domain The long and winding road you have to follow

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