information sharing on the social semantic web
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Information Sharing on Information Sharing on the Social Semantic Webthe Social Semantic Web
Aman Shakya* and Hideaki Takeda
National Institute of Informatics,Tokyo, Japan
The Second NEA-JC Workshop on Current and Future Technologies, Oct. 12, 2008, Tokyo
OutlineOutlineSocial WebSemantic WebSocial Semantic WebStYLiDConclusion
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Social WebSocial WebRecent phenomenon on the Web
◦A new generation of Web◦Most significant aspect of Web 2.0
Mass user participationUser activity
◦People Connect, Socialize and Interact
User-generated ContentsEasy to understand / use
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BlogsBlogs
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WikiWiki
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Social Web applicationsSocial Web applicationsMultimedia sharing sites
Social Networking
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Social BookmarkingSocial Bookmarking
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TaggingTaggingFolksonomy
Tag Cloud
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Social Social WebWebTodayToday
Web 2.0
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Social Web LimitationsSocial Web LimitationsUnstructured data
◦Unclear Semantics◦Machines do not understand◦Information processing/retrieval difficult
Lack of Interoperability◦Lot of data locked in closed “Data Silos”
or “Walled data gardens”
Lack of Standards
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Walled Data GardensWalled Data Gardens
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Semantic WebSemantic WebSir Tim Berners-Lee (inventor of the Web)
“.. an extension of the current web in which information is given well-defined meaning, better enabling computers and people to work in cooperation..” Scientific American
(2001) 14NEA-JC, 2008, Tokyo
Semantic Web (explained)Semantic Web (explained)Web of Data Giant Global Graph (GGG)
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WWW – Web of Documents GGG - Web of Data
Semantic Web (explained)Semantic Web (explained)Data Modeling and Knowledge
Representation◦Machine understandable Semantics
Ontology“.. an explicit specification of a conceptualization”
◦modeling of the objects, concepts, entities, relationships that exist in the area of interest
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Gruber (1993)
OntologyOntology
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Semantic Web (explained)Semantic Web (explained)
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The Semantic Web Cake
Semantic Web (explained)Semantic Web (explained)ConsensusCommon formatsStandard Vocabulary
InteroperabilityInformation exchangeInformation integration
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The Semantic Web TodayThe Semantic Web Today
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OWL (web ontology language)
Resource Description Format
SPARQL query language
Linked Data browsers
MicroformatsRDFa
MIT
Gene ontology
Challenges for Semantic Challenges for Semantic WebWebOntology creation is difficultGlobal consensus is difficult
Difficult to understand and use for ordinary people
Lack of incentive / motivation◦Lack of enough Data and
Applications
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Semantic Web “Chicken or Semantic Web “Chicken or Egg”Egg”
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Data first or Applications first
Social Semantic WebSocial Semantic WebSocial Web + Semantic Web
◦ Complement each other
◦ Semantic Web Machine understandable structure Interoperability standards
◦ Social Web Easy-to-use platforms Consensus thru Social interaction / collaboration
Combining the two cultures (Web 3.0 ?)◦ Semantic Wiki◦ Semantic Blog◦ Semantic Tagging ◦ Ontology from folksonomy….. etc
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StYLiDStYLiDStructure Your own Linked Data
http://www.stylid.org
Social Web platformShare a wide variety of Structured Data
◦Define your own Concepts (with attributes)◦Easy for ordinary people
Publish on the Semantic Web◦Exploit the structured data for useful
applications
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NEA-JC, 2008, Tokyo
Creating a new Concept
Attribute labels
Description
“Project” concept
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Enter Instance Data
value
Multiple Values
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attributes
values
Concept ConsolidationConcept Consolidation
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Hotel - ver.1 (user1)
Name
Address
Country
Hotel - ver.2 (user1)
Name
Address
Phone-number
Hotel - ver.3 (user1)
Name
Location
Rating
Hotel - ver.1 (user2)
Name
Capacity
Zip-code
Hotel - ver.2 (user2)
Name
Zip-code
Price
Hotel - ver.1 (user3)
Name
Lat
Long
Hotel (user1)
Hotel (user2)
Hotel (user3)
Hotel Virtual Concept
ConclusionConclusionSocial Web and Semantic Web
◦ Developed independently◦ Weakness of one Strength of another
Social Semantic Web◦ Combine the two cultures
StYLiD◦ Social platform to share Semantic Web
data
Effective integration not easy◦ Disadvantages creep in with advantages
Proper coordination between the two communities necessary
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Thank You! Thank You!
Happy Vijaya Dashami
and Deepawali 2065 !!
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