Semantic WebLinked Data

RDF

Distributed Expertise

Distributed Data

Why the Web?

Why the Semantic Web?

RDFResource Description Framework

RDFResource Description Framework

expresses meaningmachine readablecommunicates with links

RDFResource Description Framework

expresses meaningmachine readablecommunicates with links

RDFResource Description Framework

expresses meaningmachine readablecommunicates with links

Why links?

Internet

Linked Data

Tim Berners-Lee

Linked Data

Sir Tim Berners-Lee

http://www.otherThings.org/thing1/http://www.moreThings.org/thing2/http://www.someThings.org/thing3/http://www.neatThings.org/thing4/

Info about Thing #1http://www.otherThings.org/thing1/http://www.moreThings.org/thing2/http://www.someThings.org/thing3/http://www.neatThings.org/thing4/

Linked Data

http://www.things.org/thing1/

http://www.otherThings.org/thing5/http://www.moreThings.org/thing6/http://www.someThings.org/thing7/http://www.neatThings.org/thing48

Web API

RDF

A Mosque is a type of Building

A Mosque is a type of Building

RDF triple

A Mosque is a type of Building

RDF triplesubject predicate object

A Mosque is a type of Building

RDF triplelink + link + link

A Mosque is a type of Building

http://www.w3.org/2004/02/skos/core#Concept/Mosque

A Temple is a type of Building

http://www.w3.org/1999/02/22-rdf-syntax-ns#type

A Temple is a type of Building

http://www.w3.org/2004/02/skos/core#Concept/Building

A Mosque is a type of Building

http://www.w3.org/2004/02/skos/core#Concept/Building

http://www.w3.org/2004/02/skos/core#Concept/Mosque

http://www.w3.org/1999/02/22-rdf-syntax-ns#type

A Mosque is a type of Building

http://www.w3.org/2004/02/skos/core#Concept/Building

http://www.w3.org/2004/02/skos/core#Concept/Mosque

http://www.w3.org/1999/02/22-rdf-syntax-ns#type

A Mosque is a type of Building

http://www.w3.org/2004/02/skos/core#Concept/Building

http://www.w3.org/2004/02/skos/core#Concept/Mosque

http://www.w3.org/1999/02/22-rdf-syntax-ns#typeRDF Triple

link

RDF links give meaning

Ontolgy

Schema

Vocabulary

linklink?

RDFSOWL

RDF Schema

Web Ontology Language

RDFSOWL

RDF Schema

Classes (general things)

Web Ontology Language

RDFSOWL

RDF Schema

Classes (general things)

Web Ontology Language

Relationships that can exist among things

RDFSOWL

RDF Schema

Classes (general things)

Web Ontology Language

Relationships that can exist among things

Properties (or attributes) those things may have

ClassLibrarian: subclass of person

ClassLibrarian: subclass of person

Person: subclass of human

ClassLibrarian: subclass of person

Person: subclass of human

Human: subclass of animal

Logic

Therefore:

Logic

Therefore:

Librarians are animals

ClassA Mosque is a Building

A Building has a Geographic Location

A Building has a human creator

ClassThis Mosque is located on Temple Mount

Therefore it is located in Jerusalem

Therefore it is in a Holy City

RDF candy store

Architecture http://www.vraweb.org/vracore/4.0

Location http://www.opengis.net/

Religion http://www.loc.gov/mods/v3

Politics http://www.loc.gov/mods/v3

News http://www.pbcore.org/PBCore/

RDF mixable schemas

Architecture http://dbpedia.org/class/yago/

Location http://www.geonames.org/

Religion http://www.freebase.com/

Politics http://id.loc.gov/authorities/

News http://cv.iptc.org/newscodes/

RDF mixable vocabularies

DomeDome

Search for:

Built work + Dome + Islamic

Search for:

Built work + Dome + Islamic

Hagia SophiaHagia Sophia

Built workBuilt work

MosqueMosque

Dome of the RockDome of the Rock

Arcade Arcade

Dome of the RockDome of the Rock

San Vitale San Vitale

MosqueMosque

Religious buildingReligious building

Search for:

Religious building + Arcade

Search for:

Religious building + Arcade

Dome of the RockDome of the Rock

MosqueMosque

Dome of the RockDome of the Rock

MosqueMosque

Dome of the RockDome of the Rock

MosqueMosque

Dome of the RockDome of the Rock

MosqueMosque

Dome of the RockDome of the Rock

MosqueMosque

Arcade Arcade

Religious buildingReligious building

Search for:

Religious building + Arcade

Search for:

Religious building + Arcade

Arcade Arcade

Religious buildingReligious building

San Vitale San Vitale

Search for:

Religious building + Arcade

Search for:

Religious building + Arcade

Arcade Arcade

Religious buildingReligious building

Search for:

Religious building + Arcade

Search for:

Religious building + Arcade

Arcade Arcade

Religious buildingReligious building

Search for:

Religious building + Arcade

Search for:

Religious building + Arcade

Arcade Arcade

San Vitale San Vitale

Religious buildingReligious building

Search for:

Religious building + Arcade

Search for:

Religious building + Arcade

Arcade Arcade

San Vitale San Vitale

Religious buildingReligious building

Search for:

Religious building + Arcade

Search for:

Religious building + Arcade

Arcade Arcade

DomeDome

Search for:

Built work + Dome + Islamic

Search for:

Built work + Dome + Islamic

Hagia SophiaHagia Sophia

RitualRitual

San Vitale San Vitale

Search for:

Religious building + Arcade

Search for:

Religious building + Arcade

Arcade Arcade

Religious buildingReligious building

MosqueMosque

Dome of the RockDome of the Rock

Built workBuilt work

http://dbpedia.org/page/Domehttp://dbpedia.org/page/Dome

Search for:http://www.freebase.com/view/architecture/building

http://dbpedia.org/page/Domehttp://id.loc.gov/authorities/sh85006804

Search for:http://www.freebase.com/view/architecture/building

http://dbpedia.org/page/Domehttp://id.loc.gov/authorities/sh85006804

http://id.loc.gov/authorities/sh85114228http://id.loc.gov/authorities/sh85114228

http://viaf.org/viaf/147047031/http://viaf.org/viaf/147047031/

Search for:http://sw.opencyc.org/2009/01/31/concept/en/ReligiousBuildng

http://id.loc.gov/vocabulary/graphicMaterials/tgm000448

Search for:http://sw.opencyc.org/2009/01/31/concept/en/ReligiousBuildng

http://id.loc.gov/vocabulary/graphicMaterials/tgm000448

http://id.loc.gov/vocabulary/graphicMaterials/tgm000448http://id.loc.gov/vocabulary/graphicMaterials/tgm000448

http://sw.opencyc.org/2009/01/31/concept/en/ReligiousBuildinghttp://sw.opencyc.org/2009/01/31/concept/en/ReligiousBuilding

http://id.loc.gov/authorities/sh85087470#concepthttp://id.loc.gov/authorities/sh85087470#concept

http://viaf.org/viaf/134358038/http://viaf.org/viaf/134358038/

http://www.freebase.com/view/architecture/building

http://www.freebase.com/view/architecture/building

http://en.wikipedia.org/wiki/File:Ayasofya-Innenansicht.jpg

http://www.flickr.com/photos/cornelluniversitylibrary/3611150353/

Semantic WebLinked Data

RDF

MeaningLogic

Combination Re-use