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Semantic Web Landscape 2009
In 2009, the semantic web is marked by established core standards and an array of emerging technologies, enabling users to employ interoperable tools for serious enterprise implementations. Community projects have successfully linked numerous public datasets, demonstrating the viability of the semantic web for data integration and complex querying. Despite this progress, challenges remain, including a shortage of skilled professionals and unresolved issues regarding standard solutions for privacy and trust.
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Editor's Notes
- #4 Susie StephensBen AdidaEric Prud’hommeauxChris Bizer, Chris Becker
- #6 Executive summary.
- #29 Courtesy W3C SWEO group, http://linkeddata.org/docs/eswc2007-poster-linking-open-data.pdf
- #35 http://linkeddata.org/tools
- #37 http://esw.w3.org/topic/TaskForces/CommunityProjects/LinkingOpenData/SemWebClients
- #42 See http://beckr.org/DBpediaMobile/ and http://wiki.dbpedia.org/DBpediaMobile
- #58 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.
- #59 Thanks to Fabien Gandon for the POWDER slides: http://www.slideshare.net/fabien_gandon/powder-in-a-nutshell-presentation
- #60 Thanks to Fabien Gandon for the POWDER slides: http://www.slideshare.net/fabien_gandon/powder-in-a-nutshell-presentation
- #61 Thanks to Fabien Gandon for the POWDER slides: http://www.slideshare.net/fabien_gandon/powder-in-a-nutshell-presentation
- #62 Thanks to Fabien Gandon for the POWDER slides: http://www.slideshare.net/fabien_gandon/powder-in-a-nutshell-presentation
- #63 Thanks to Fabien Gandon for the POWDER slides: http://www.slideshare.net/fabien_gandon/powder-in-a-nutshell-presentation
- #64 Thanks to Fabien Gandon for the POWDER slides: http://www.slideshare.net/fabien_gandon/powder-in-a-nutshell-presentation
- #71 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
- #74 http://www.w3.org/2001/sw/sweo/public/UseCases/
- #108 Definition.
- #109 Prescriptive.
- #110 Descriptive.
- #111 Formal.
- #115 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.
- #121 Quotation from http://xtech06.usefulinc.com/schedule/paper/61
- #122 Definition.
- #123 Prescriptive.
- #124 Descriptive.
- #126 Descriptive (part 2). This is leagues ahead of the situation with SQL!
- #130 To run for real: http://dbpedia.org/sparqlPREFIX type: <http://dbpedia.org/class/yago/>PREFIX prop: <http://dbpedia.org/property/>SELECT ?country_name ?populationWHERE { ?country a type:LandlockedCountries ;rdfs:label ?country_name ;prop:populationEstimate ?population . FILTER (?population > 15000000 && langMatches(lang(?country_name), \"EN\")) .} ORDER BY DESC(?population)
- #135 http://bio2rdf.org/
- #137 http://bio2rdf.org/
- #141 Definition.
- #143 Definition.
- #150 Thanks to BijanParsia for much of this material http://www.cs.man.ac.uk/~bparsia/2009/comp60462/17-03-casestudies.pdf