Semantic Web - A Survey Talk
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Transcript of Semantic Web - A Survey Talk
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WeST – Web Science & TechnologiesUniversity of Koblenz ▪ Landau, Germany
Semantic Web
Steffen Staab
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Steffen [email protected]
WeST – Web Science & Technologies
Phone bookCERN
Aalta 234…Zyström 981
…a short history of the Web…
<HTML>Aalta
Interests…Phone 789<HTML>
Zyström
ColleagueTel 981
~1989
789
<HTML>Researcher
Aalta…Zyström
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Steffen [email protected]
WeST – Web Science & Technologies
World Wide Web
WWW :=
Hypertext &
Internet &
Social Phenomenon
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Steffen [email protected]
WeST – Web Science & Technologies
More than 1 Billion Users Later …
Sir Tim Berners-Lee
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Steffen [email protected]
WeST – Web Science & Technologies
…the History of the Web continued…
Phone BookCERN
Aalta 789…Zyström 981
<HTML>Aalta
Interests…Tel 789<HTML>
Zyström
ColleguePhone 981
~1995
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Steffen [email protected]
WeST – Web Science & Technologies
…the Problem Inherent to Knowledge…
<HTML>
<HTML>
~1995
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Steffen [email protected]
WeST – Web Science & Technologies
…now you can read it more easily…
<HTML>
<HTML>
What a computer understands!
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Steffen [email protected]
WeST – Web Science & Technologies
…the History of the Semantic Web…
<HTML>Forscher
Aalta…Zyström
<HTML>
<HTML>
~1995
<HTML>Researcher
Aalta 789…Zyström 981
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Steffen [email protected]
WeST – Web Science & Technologies
What do you need for this idea?
<HTML>Forscher
Aalta…Zyström
<HTML>
<HTML>
<HTML>Researcher
Aalta 789…Zyström 981
1. Language for (meta-)data
2. Language for describing
schema which (meta-)data
adhere to
3. Exchange of data and schemata via
Internet
4. Lots of people and applications
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Steffen [email protected]
WeST – Web Science & Technologies
Semantic Web
Semantic Web :=
Semantic Web Data &
Ontologies &
Internet &
Social Phenomenon
1. Language for (meta-)data
2. Language for describing
schema which (meta-)data
adhere to
3. Exchange of data and schemata via
Internet
4. Lots of people and applications
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Steffen [email protected]
WeST – Web Science & Technologies
Google for „Vincent van Gogh“
Screenshot by Kingsley Idehen
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Steffen [email protected]
WeST – Web Science & Technologies
Facebook Data Object
Screenshot by Kingsley Idehen
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Steffen [email protected]
WeST – Web Science & Technologies
DBPedia Data Object
Note: DBPedia harvests knowledge from Wikipedia
Screenshot by Kingsley Idehen
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Steffen [email protected]
WeST – Web Science & Technologies
Freebase Data Object
Note: MetaWeb producing Freebase is a Semantic Web company bought by Google in 2010
Screenshot by Kingsley Idehen
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Steffen [email protected]
WeST – Web Science & Technologies
Google Search with Google Knowledge Graph
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Steffen [email protected]
WeST – Web Science & Technologies
Content
What’s in the schema? Creative works: CreativeWork, Book, Movie,
MusicRecording, Recipe, TVSeries ... Embedded non-text objects: AudioObject, ImageObject,
VideoObject Event Organization Person Place, LocalBusiness, Restaurant ... Product, Offer, AggregateOffer Review, AggregateRating
Annotating data within normal Web pages
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Steffen [email protected]
WeST – Web Science & Technologies
Return on Investment
BestBuy early adopter Launched Semantic Product Web, augmented with
GoodRelations and RDFa, 30% increase in traffic to their pages. (not a scientifically precise experiment!)
Nick Cox@Yahoo! search results augmented with structured data get
15% higher click-through rate
Cf http://www.chiefmartec.com/2009/12/best-buy-jump-starts-data-web-marketing.html
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Steffen [email protected]
WeST – Web Science & Technologies
http://lisa.west.uni-koblenz.de/lisa-demo/
Family‘s analysis of Munich LOD + Open Street Map data
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Steffen [email protected]
WeST – Web Science & Technologies
http://lisa.west.uni-koblenz.de/lisa-demo/
Entrepreneur‘s analysis of Munich LOD + Open Street Map data
1. PrizeGerman Linked Open Gov Data Competition 2012
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Steffen [email protected]
WeST – Web Science & Technologies
Making Web 2.0 More Accessible
Links Location
Persons
Knowledge Tags
low- to midlevel features
xxxxxxxxx
GeoNames
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Steffen [email protected]
WeST – Web Science & Technologies
Semantic Identity – Festung Ehrenbreitstein
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Steffen [email protected]
WeST – Web Science & Technologies
Persons – Celebrities, FOAFers & Flickr Users
Billion Triples Challenge 1. Prize 2008
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Steffen [email protected]
WeST – Web Science & Technologies
>1000 Life Science DBs, number growing quickly
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Steffen [email protected]
WeST – Web Science & Technologies
Querying Biochemical Web Sites
Rich Site Structure
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Steffen [email protected]
WeST – Web Science & Technologies
Individual knowledge work
Organizational knowledge work
?How to integrated?
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Steffen [email protected]
WeST – Web Science & Technologies
Scenario: SME architecture office
Integration of organizational & individual knowledge work
German KM 1. Prize 2011
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Steffen [email protected]
WeST – Web Science & Technologies
Developing methods…
Identity Provenance
Origin Trust
Search Intelligent Search Ranking
Scalability Cloud Querying Distribution
BTC 1. Prize 2011