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Semantic Web Vo Camp Seoul Summer Rdf Vocabularies
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Transcript of Semantic Web Vo Camp Seoul Summer Rdf Vocabularies
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RDF Vocabularies
SemanticWebVoCampSeoul:Summer
May29,2009
SangwonYang
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ConnectionorLinking
• 우리는혼자가아니다.우리가내쉬는숨조차타인에게흡수된다⋯내가느끼는햇살을내이웃도똑같이느낀다.이런의미에서모든 것들은 서로 긴밀히 연결되어있다⋯나와친구가연결되어있는동시에나와적도연결되어있는것이다.
- NBCLifeSeason1.EP08
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Link
• Areferenceinaresourcetoanotherresource
• Resource
- canbeanything
‣ people
‣ document
‣ data
- aslongasitcanbeuniquelyidentified
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RDF
• ResourceDescriptionFramework(RDF)isalanguageforrepresenting information about resourceintheWorldWideWeb
- http://www.w3.org/TR/rdf-primer
• ItisabackboneoftheSemanticWeb
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RDFVocabularies
• AsetofpredefinedclassesandpropertiesusingbyRDF
- FOAF
- SIOC
- SKOS- SCOT : Social Semantic Cloud of Tags
- etc...
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SocialWebor
SocialNetwork
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http://www.flickr.com/photos/briansolis/2735401175/sizes/l/
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SocialWeborSNS
• theSocialWebiscurrentlyusedtodescribehowpeoplesocializeorinteractwitheashotherthroughouttheWorldWideWeb.Suchpeoplearebroughttogetherthroughavarietyofshared interests
- wikipedia,SocialWeb
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SocialWeborSNS
• TheSocialWeborSocialNetworksconsistofpeoplewhoareconnectedbyashared object.
- socialgraph:thewayIamconnected,thereason,SNSworks.
- socialobject:thereason,peoplearetalkingtoeachother
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aPremise
• TheCurrentthinkingintheindustryisthatthethreemajorblocksofSNSplatformare:Identity,Friends,andFeed
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RDFVocabularies:QuickReview
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FOAF:FriendofaFriend
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• TheFOAFprojectiscreatingaWebofmachine-readablepagesdescribing people, the links betweenthemandthethingstheycreateanddo
- www.foaf-project.org
FriendofaFriend
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FriendofaFriend
• 사람,사람간의그리고개체간의연결된 관계를표현해준다.-machinereadable
• XML/RDF기반의textdocument이다.
• FOAF는사용자에대한socialinformation을제공하는방법이다.
• FOAF는친구의관계(anetworkoffriends)를표현하는방법이다.
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FriendofaFriend
• FOAFataglace
- Classes:12
- Properties:54
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FOAF
• FOAF는사람(people)과사람간의관계(relationships)을의미적으로표현하기위한RDFvocabularies이다.
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DescribingPeople
• BasicInformation
- name,sex,birthday,nick...
• PersonalInformation
- interest,organization,weblog...
• ContactInformation
- onlineaccount,email,IM,phone,address...
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FOAFdataexample
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DescribingRelationships
• foaf:knows,extendedwiththeRelationshipsvocabulary
- :mefoaf:knows:you
- :merel:collaboratesWith:you
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FOAFdataexample
!"#!$%&'(") !"#!$%&'(")
!"#!$*)"+(
'&,$(%"-(&.!
!"#!$+&/,"0
!"#!$)#1& 23&*3"-)0!451
677%$88/,"09)#:&'9;"18&0&'"!"#!$+&/,"0
!"#!$)#1& <#)0+")!=#)0
677%$88+++9",,59;"9*'8
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IdentityandFriends
Who I am
Who I know
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FOAF
• FOAF는사람(people)과사람간의관계(relationships)을의미적으로표현하기위한RDFvocabularies이다.
• 즉,SocialWeb의Identity와Friends는FOAF를통해서의미적으로 표현할수있다.
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WhoIam
MynameisSangwonYang.I'masystemdesigner@nuriensoftwareandlivinginSeoul.
Seemyblog,photos,tweetsandvideosformorepersonaldetails.
Also,youmaysubscribetothisuniversal feedwhichaggregatesmyonlineactivity.
July25th1973.twosonsandonewife
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DistributedIdentity
google : sangwon.yang twitter : sangwon
facebook : 701611529 friendfeed : olli
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IntegrationofIdentity
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InterlinkedSocialGraph
!"#!!$%&'()*"+)
!"#!!$%&,++),+-)*
!"#!!$%&$*$%+
!"#!!$%&'(./+0'
1+(1&2)+"'
1+(1&2)+"'
1+(1&2)+"'
13&45676689:
13&6;;;;86466
13&69866:9;8;
1+(1&2)+"'1+(1&2)+"'
11&+00#
11&'(./+0
11&,++),+-)*
11&<#<#)$01
1+(1&2)+"'
1+(1&2)+"'
1+(1&2)+"'
.$
+"0&'(.$=' +"0&'(.$='
+"0&'(.$='
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MergingSocialGraph
• acompletedecentralizedsocialgraph
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SIOC:Semantically-Interlinked
OnlineCommunities
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SIOC
• SIOCaimstoenabletheintegrationofonlinecommuniyinformation.
- allowthedescirptionofinformationcontainedwithinonlinecommunitysites(blogs,forums..)andbydoingsomakeitpossibletoconnectthesesitestogether,formingaSocialWebofData
- tofullydescirbethecontentsandstructureofcommunitysites
http://sioc-project.org/
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Evolutionofonlinecommunitysites
• 현재의온라인커뮤니티사이트는,
- 가치있는정보의소스를제공한다.
- 풍부한메타정보를담을수있다.
- 그러나서로고립되어있다.
• Next,
- 온라인커뮤니티사이트들을함께연결한다.
- 더많은가치의추가
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SIOC
• RepresentCommunity
- 문서(document)뿐만아니라데이타(data)도표현한다.
- 온라인커뮤니티의다양한측면을다룰수있다
‣ UserAccount,groups
- reader,reviewer,moderator
‣ Contentsandtypes
- blogs,posts,wiki
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SIOC
- 사용자들과컨텐츠사이의action을표현할수있다.
‣ 사용자는포스트를생성,태깅,공유한다
‣ 태그를통해컨텐츠를살펴본다.
‣ 코멘트를통해컨텐츠에대한논의를한다.
‣ 포스팅된컨텐츠를통해서로연결된다.
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SIOCdataexample
• twitter/ymjkim이@sangwon과@samdols에게pbtweet을살펴보라함.
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SIOCdataexample
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ModelingsocialdatawithSIOC
• Asontologytodescribesocialactivitiesofonlinecommunities.
• theSIOC(withFOAF)canrepresentyour/yourfriendssocialactivitiesontheWeb
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Yoonyoung
Nam
Sangwon Yang
!"#!$%&'(")
!"#!$*)"+(!'&,$-",,#."'#/&(01/2
sangwon
(1"-$3(&'
!"#!$4"-56&)/
!"#!$#--"5)/7&'81-&9"6&:#;&
!"#!$2",<(=--"5)/
sangwon on twitter
(1"-$>"'56?(1"-/$@1-'".,";
!"!"1
!"!"3(1"-$-'&#/"'A"!
(1"-$-'&#/"'A"!
(1"-$"+)&'A"!
(1"-$%"(/
(1"-$%"(/(1"-$-")/#1)&'A"!
(1"-$-")/#1)&'A"!
!"#!$%&'(")
yoonyoung
(1"-$3(&'
!"#!$4"-56&)/
!"#!$#--"5)/7&'81-&9"6&:#;&
!"#!$2",<(=--"5)/
yoonyoung on twitter
(1"-$>"'56?(1"-/$@1-'".,";
!"!"2
(1"-$%"(/ (1"-$-")/#1)&'A"!
(1"-$-'&#/"'A"!
(1"-$"+)&'A"!
(1"-$'&:,BA"!
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Feed
your/your friends social activities
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ActivitiesontheWeb
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Activityfeed
• sangwon-"RT@blogtalkBlogtalk2009willbeheldonthe1stand2ndSeptember2009inJejuIsland,Korea",May26at11:30pmfromtwitter
- sioc:Userasubclassoffoaf:OnlineAccount
- content,sioc:content
- when,dcterm:created
- place,sioc:Site
- sioc:Post
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FOAF+SIOC
• theSIOCwithFOAFcanrepresentyour/yourfriendssocialactivitiesontheWeb
- describingidentity&friends(socialgraph)
- describingfeed:thecontentandstructureofsocialweb
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SKOS:SimpleKnowledgeOrganiztionSystem
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SKOS
• acommondatamodelforsharingandlinkingknowledgeorganizationsystems(KOSs)suchasthesauri,classificationschemes,andtaxonomies.
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SKOSOverview
• UsingSKOS,KOSscanbeexpressedasmachine-readbledata.
• Itcanbeexchangedapplicationsandpublishedinamachine-readableformatintheWeb
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SKOSOverview
• TheSKOSdatamodelviewaKOSasaconcept schemecomprisingasetofconcepts
- skos:Concept
- skos:ConceptScheme
• SKOSconceptsandconceptschemesareidentifiedbyURIs
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SKOSOverview
• SKOSconceptscanbelabledwithanynumberoflexicalstrings
- skos:prefLabel
- skos:altLabel
- skos:hiddenLabel
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SKOSOverview
• SKOSconceptscanbeassignedoneormorenotations
- skos:notation
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SKOSOverview
• SKOSconceptscanbedocumentedwithnotesofvarioustypes
- skos:note
- skos:scopeNote,skos:definition,skos:example
- skos:historyNote,skos:editorialNote,skos:changeNote
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SKOSOverview
• SKOSconceptscanbelinkedtootherSKOSconceptsviasemanticrelationpropertis
- skos:broader
- skos:narrower
- skos:related
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SKOSOverview
• SKOSconceptscanbegroupedintocollections,whichcanbelabeledand/orordered
- skos:Collection
- skos:member
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SKOSOverview
• SKOSconceptscanbemappedtootherSKOSconceptsindifferentconceptschemes
- skos:closeMatch,skos:exactMatch
- skos:broadMatch,skos:narrowMatch
- skos:relatedMatch
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Example1-1:wikipedia
• Dinosaur
- Dinosaurswerethedominantvertebrateanimalsof⋯.
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Example1-2
skos:Conceptdb:dinosaurrdf:type
skos:definitionskos:prefLabel
Dinosaurus were... Dinosaur
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Example2-1:taxonomy
• Animals
- Reptile
- Bird
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Example2-2
db:animals
Reptile
Bird
Animals
db:reptile
db:bird
skos:prefLabel
skos:prefLabel
skos:prefLabel
skos:broader
skos:narrower
skos:broaderskos:narrower
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Example3-1:Thesaurus
• Term:Economiccooperation
• UsedFor:Economicco-operation
• BroaderTerms:Economicpolicy
• NarrowerTerms:Economicintegration,Europeaneconomiccooperation
• RelatedTerms:Interdependence
• ScopeNote:Includescooperative...
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Example3-2
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Identity,Friends,andFeed
your/your friends social activities
Who I am
Who I know
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TheSemanticSocialWeb
Yoonyoung
Nam
Sangwon Yang
!"#!$%&'(")
!"#!$*)"+(!'&,$-",,#."'#/&(01/2
sangwon
(1"-$3(&'
!"#!$4"-56&)/
!"#!$#--"5)/7&'81-&9"6&:#;&
!"#!$2",<(=--"5)/
sangwon on twitter
(1"-$>"'56?(1"-/$@1-'".,";
!"!"1
!"!"3(1"-$-'&#/"'A"!
(1"-$-'&#/"'A"!
(1"-$"+)&'A"!
(1"-$%"(/
(1"-$%"(/(1"-$-")/#1)&'A"!
(1"-$-")/#1)&'A"!
!"#!$%&'(")
yoonyoung
(1"-$3(&'
!"#!$4"-56&)/
!"#!$#--"5)/7&'81-&9"6&:#;&
!"#!$2",<(=--"5)/
yoonyoung on twitter
(1"-$>"'56?(1"-/$@1-'".,";
!"!"2
(1"-$%"(/ (1"-$-")/#1)&'A"!
(1"-$-'&#/"'A"!
(1"-$"+)&'A"!
(1"-$'&:,BA"!
Concept
Concept
sioc:topic
skos:narrower
sioc:topic
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TheSemanticSocialWeb
• Identity,Friends,andFeed
• FOAF+SIOC+SKOS+etc
• People,Relationships,andSocialAcitivities등을의미적으로표현할수있다.
![Page 61: Semantic Web Vo Camp Seoul Summer Rdf Vocabularies](https://reader033.fdocuments.in/reader033/viewer/2022051323/54b31c054a79597e288b459a/html5/thumbnails/61.jpg)
!!!!!
• Oneshouldneverforget:
- ontologies/vocabulariesmustbesharedandreused!
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Q?andA?