Aplicații Web Semantice - Descriere Proiect
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Aplicații Web Semantice - Descriere Proiect

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Aplicații Web Semantice - Descriere Proiect Aplicații Web Semantice - Descriere Proiect Presentation Transcript

  • Semantic Web Applications Project Description
  • Project description
    • The project will allow you to pass through all the stages of development of a semantic web application
    • This document presents the steps of the project from end to start
    • The purpose of the document is for you to understand which are the milestones, their importance and how they are linked
  • BBC Music Web Site - Page of an artist A semantic web site
  • If we scroll down we discover Description comes from wikipedia Links and informations come from MusicBrainz
  • What ’s behind? Data provided also as rdf Artists indentified through URI ’s Links to other relevant information about the artist
  • 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
  • Where does the data come from? Query language for RDF meta-data Bookmark this link 
    • You can query the linked data using sparql
  • 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
  • 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
  • Link to other datasets
  • 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