the semantic web and why you should care
DESCRIPTION
subtitle: "This Is The Most Informal Talk You Will Ever Hear About a Formal Topic" Originally presented at the IEEE/ACM 2009 Joint Conference on Digital Libraries, Workshop On Integrating Digital Library Content with Computational Tools and Services, on 19 June 2009. co-author: http://www.slideshare.net/krpageTRANSCRIPT
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This Is The Most Informal Talk You Will Ever Hear About a
Formal Topic
Ben Fields - Goldsmiths University of LondonKevin Page - University of Southampton
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orThe Semantic Weband why you should
care
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Semantic Web
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Semantic Web
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Semantic
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meaning
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machine readable
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machine readablemeaning
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machine readablemeaning
self-describing
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machine readablemeaning
self-describing
Why RDF?
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What is RDF?
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RDF is a model
objectpredicate
subject
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Is that it?
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Yes, that’s it.
objectpredicate
subject
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The model can be serialized as XML
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The model can be serialized as XML
It’s pig ugly
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The model can be serialized as XML
It’s pig ugly
That’s fine.Machines eat ugly for
breakfast
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Honestly, don’t worryRDF != RDF/XML
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Our model can describe models
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Specific Models
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About stuff
Specific Models
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About Things
Specific Models
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About Things
Specific Models
Let’s call these ontologies
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This Is The Most Informal Talk You Will Ever Hear About a
Formal Topic
Ben Fields - Goldsmiths University of LondonKevin Page - University of Southampton
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Ontologies are described in OWL
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Ontologies are described in OWL
OWL is modeled in RDF
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RDF is machine readable
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RDF is machine readable
So ontologies can understood by
machines
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This Is The Most Informal Talk You Will Ever Hear About a
Formal Topic
Ben Fields - Goldsmiths University of LondonKevin Page - University of Southampton
![Page 32: The Semantic Web and Why You Should Care](https://reader033.vdocuments.us/reader033/viewer/2022052621/557c20acd8b42a65268b4d93/html5/thumbnails/32.jpg)
Even if that’s just to assert that everything is
a Thing
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This Is The Most Informal Talk You Will Ever Hear About a
Formal Topic
Ben Fields - Goldsmiths University of LondonKevin Page - University of Southampton
![Page 34: The Semantic Web and Why You Should Care](https://reader033.vdocuments.us/reader033/viewer/2022052621/557c20acd8b42a65268b4d93/html5/thumbnails/34.jpg)
Semantic Web
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Semantic Web
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Web
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The Web is simply the biggest, most successful,
most useable, distributed systems architecture ever.
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“The Web is simply the biggest, most successful,
most useable, distributed systems architecture ever.”
David De Roure
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Linking
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Linking
Scale
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Linking
Scale
The mechanism for
enables the Web to
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Do people scale?
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Do people scale?
Do people scale to the size of the Web?
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machine readablemeaning
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Why does the Web scale?
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REST
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A Resource Oriented Architecture
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A Resource Oriented Architecture
with a simple protocol to return representations of
those resources
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HTTP returns those representations
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HTTP returns those representations
When it talks to us, it returns HTML
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The resources are simply addressable
objects
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What is RDF?Resource
Description Framework
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About those addressable
Things...
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We address them using URIs
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http://www.bbc.co.uk/music/artists/668fd73c-bf54-4310-a139-305517f05311
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http://www.bbc.co.uk/music/artists/668fd73c-bf54-4310-a139-305517f05311
This is the Willie Nelson.
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http://www.bbc.co.uk/music/artists/668fd73c-bf54-4310-a139-305517f05311
This is the Willie Nelson.
Honest.
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Everything in RDF is a
resource
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Everything in RDF is a URI
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Yes, that’s it.
objectpredicate
subject
URI
not quite
^
URIURI
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Why is this important to
second generation digital libraries?
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Principally libraries are about sharing
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Principally libraries are about sharing
Things.
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Do people scale?
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Do people scale?
Do people scale to the size of the Web?
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machine readablemeaning
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Demo?
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Questions?