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CSHALS 2010 W3C Semanic Web Tutorial
 

CSHALS 2010 W3C Semanic Web Tutorial

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These slides were presented as part of a W3C tutorial at the CSHALS 2010 conference (http://www.iscb.org/cshals2010). The slides are adapted from a longer introduction to the Semantic Web available at ...

These slides were presented as part of a W3C tutorial at the CSHALS 2010 conference (http://www.iscb.org/cshals2010). The slides are adapted from a longer introduction to the Semantic Web available at http://www.slideshare.net/LeeFeigenbaum/semantic-web-landscape-2009 .

A PDF version of the slides is available at http://thefigtrees.net/lee/sw/cshals/cshals-w3c-semantic-web-tutorial.pdf .

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  • One of the goals of this tutorial is to de-mystify the all of the names of technologies, tools, projects, etc. that swirl around the Semantic Web story.And since I saw that as I researched this presentation, everyone seems to like this particular Gary Larson cartoon, it behooved me to include it.
  • The good – emphasize the importance of the foundational layers (URIs and RDF) ; emphasizes the long-term roadmap/vision of what’s needed for the Semantic WebThe bad – implies that perhaps things can’t be taken serious until all the pieces are in place ; implies an order to the research ; various versions of the cake tell different stories (importance of XML, absence of query, lack of UI/application layer, …)Valentin Zacharias wrote about the “infamy” part of the layer cake here: http://www.valentinzacharias.de/blog/2007/04/ban-semantic-web-layer-cake.html
  • The Ontology/ontology dichotomy is captured well by Jim Hendler at http://www.cs.rpi.edu/%7Ehendler/presentations/SemTech2008-2Towers.pdf
  • Definition.
  • Prescriptive.
  • Descriptive.
  • Formal.
  • The first is as opposed to relational tables or XML schemas where the schema needs to be explicitly adjusted to accommodate whatever data is being merged.The second is due to the expressivity of the model – can handle lists, trees, n-ary relations, etc.The third is as opposed to table & column identifiers or XML attribute names.
  • Definition.
  • Prescriptive.
  • Descriptive.
  • Descriptive (part 2). This is leagues ahead of the situation with SQL!
  • http://bio2rdf.org/
  • http://bio2rdf.org/
  • Definition.
  • Definition.
  • Definition.

CSHALS 2010 W3C Semanic Web Tutorial CSHALS 2010 W3C Semanic Web Tutorial Presentation Transcript