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

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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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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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