Linked data

It builds upon standard Web technologies such as HTTP, RDF and URIs, but rather than using them to serve web pages only for human readers, it extends them to share information in a way that can be read automatically by computers.Part of the vision of linked data is for the Internet to become a global database.[13] The mailing list was initially hosted by the SIMILE project[14] at the Massachusetts Institute of Technology.[18] There are a number of European Union projects involving linked data.Some of the better known ontologies are: Clickable diagrams that show the individual datasets and their relationships within the DBpedia-spawned LOD cloud (as by the figures to the right) are available.
A network of over a thousand circles clustered into groups and linked with lines into a web.
Wikidata in the Linked Open Data Cloud. Databases indicated as circles (with wikidata indicated as ‘WD’), with grey lines linking databases in the network if their data is aligned. Generated from https://lod-cloud.net/datasets .
DBpedia as the most interlinked LOD dataset and crystallization point of the Linked Open Data Cloud since 2008
DBpedia as the most interlinked LOD dataset and crystallization point of the Linked Open Data Cloud since 2008, image from 2021, generated from https://lod-cloud.net .
Deployment scheme for Linked Open Data [ 10 ]
The above diagram shows which Linking Open Data datasets are connected, as of August 2014. This was produced by the Linked Open Data Cloud project, which was started in 2007. Some sets may include copyrighted data which is freely available. [ 15 ]
The same diagram as above, but for February 2017, showing the growth in just two and a half years
Linked data structurecomputingsemantic queriesInternetdatabaseTim Berners-LeeWorld Wide Web ConsortiumSemantic Webopen dataUniform Resource IdentifiersSPARQLTED conferenceStructured datacontrolled vocabularyResource Description FrameworkserializationRDF/XMLTurtleJSON-LDLinked Data PlatformDBpediaWikibaseWikidataMicrosoft Excel file formatComma-separated valuesSIMILEMassachusetts Institute of Technologydata commonsdatasetstriplesEuropean UnionEU Open Data PortalOntologiesOpenCycGeoNamesWikimedia FoundationGlobal Research Identifier Databaseknowledge graphmultilingualdatasheetsdigital assetsstatisticsAmerican Art CollaborativeAuthority controlCitation analysisHyperdataNetwork modelSchema.orgWeb Ontology LanguageList of datasets for machine-learning researchPascal HitzlerWayback MachineScientific AmericanDatabasesHypertextSemanticsSemantic networksWorld Wide WebDataspacesRule-based systemsSemantic analyticsSemantic brokerSemantic computingSemantic mapperSemantic matchingSemantic publishingSemantic reasonerSemantic searchSemantic service-oriented architectureSemantic wikiCollective intelligenceDescription logicFolksonomyGeotaggingInformation architectureKnowledge extractionKnowledge managementKnowledge representation and reasoningLibrary 2.0Digital libraryDigital humanitiesMetadataReferencesTopic mapWeb 2.0Web engineeringWeb Science TrustNotation3N-TriplesSemantic HTMLCommon LogicRule Interchange FormatSemantic Web Rule LanguageMicrodataMicroformatsSAWSDLFacebook PlatformDublin CorehCalendarhProducthRecipehReviewOpen science dataOpen-notebook scienceCanadaFranceOpen energy system databasesOpen accessOpen contentOpen educationOpen governmentOpen hardwareOpen knowledgeOpen scienceOpen source