Knowledge graphs: Difference between revisions
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Acquiring access for our consumers to a [[w:semantic network|semantic network]] of relevant [[w:linked data|linked]] [[w:open data|open data]] compiled by other efforts and structured by a number of [[w:ontology (information science)|ontologies]] is obviously key to Consumerium. Reciprocally we aim to share the information we gather and compile available to other efforts. | |||
[[ | |||
See also: [[mw:Manual:Managing data in MediaWiki]] at mediawiki.org | |||
= Wikidata = | = Wikidata = | ||
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* [https://rdflib.github.io/sparqlwrapper/ SPARQL Endpoint interface to Python] | * [https://rdflib.github.io/sparqlwrapper/ SPARQL Endpoint interface to Python] | ||
* [[wikidata:Wikidata:Database download|Wikidata database download]] | * [[wikidata:Wikidata:Database download|Wikidata database download]] | ||
* The [https://tools.wmflabs.org/wikidata-game/# Wikidata Game] [[w:gamification|gamifies]] adding information to Wikidata. | |||
Main entry point of any Wikidata item is a [[w:JSON|JSON]] dictionary, that has this form: | Main entry point of any Wikidata item is a [[w:JSON|JSON]] dictionary, that has this form: | ||
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“sitelinks”: by-language dictionary}</code> | “sitelinks”: by-language dictionary}</code> | ||
== Lexicographical Wikidata == | |||
A '''lexeme''' is a unit of [[w:lexical semantics|lexical]] meaning that underlies a set of words that are related through [[w:inflection|inflection]]. It is a basic abstract unit of meaning,<ref>''The Cambridge Encyclopedia of The English Language''. Ed. [[w:David Crystal|]]. Cambridge: Cambridge University Press, 1995. p. 118. {{ISBN|0521401798}}.</ref> a [[w:emic unit|unit]] of [[w:Morphology (linguistics)|morphological]] [[w:Semantic analysis (linguistics)|analysis]] in [[w:linguistics]] that roughly corresponds to a set of forms taken by a single root [[w:word]]. For example, in [[w:English language|English]], ''run'', ''runs'', ''ran'' and ''running'' are forms of the same lexeme, which can be represented as <span style="font-variant:small-caps; text-transform:lowercase;">RUN</span> (Wikipedia on 2019-12-29) | |||
Since 2018, Wikidata has also stored a new type of data: words, phrases and sentences, in many languages, described in many languages. This information is stored in new types of entities, called '''Lexemes''' ('''L'''), '''Forms''' ('''F''') and '''Senses''' ('''S''').<ref>[[wikibooks:SPARQL/WIKIDATA Lexicographical data]]</ref>. This is enabled by [[mw:Extension:WikibaseLexeme|the WikibaseLexeme extension]]. | |||
* [[wikidata:Wikidata:Lexicographical_data/Documentation|The main documentation page for lexicographical data on Wikidata]] | |||
* [[wikidata:Wikidata:Tools/Lexicographical data|Wikidata's list of lexicographical properties and tools using the lexicographical data]] | |||
* [[wikibooks:SPARQL/WIKIDATA Lexicographical data|Wikibook on Wikidata's lexicographical data]] | |||
== Useful information == | == Useful information == | ||
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* [[w:Wikipedia:Wikidata|Wikipedia advice on Wikidata issues]] | * [[w:Wikipedia:Wikidata|Wikipedia advice on Wikidata issues]] | ||
= Wikibase = | == Wikibase == | ||
[[File:Wikibase_logo.png|thumb|right|250px|The [http://wikiba.se/ Wikibase] logo]] | [[File:Wikibase_logo.png|thumb|right|250px|The [http://wikiba.se/ Wikibase] logo]] | ||
'''[[mw:Wikibase|Wikibase]]''' [http://wikiba.se/ (wikiba.se)] is a system for storing and querying structured data that powers [[Wikidata]] and other wikis. | '''[[mw:Wikibase|Wikibase]]''' [http://wikiba.se/ (wikiba.se)] is a system for storing and querying structured data that powers [[Wikidata]] and other wikis. | ||
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:# [[mw:Extension:Wikibase Client|Wikibase Client]] that allows a wiki to access structured data from a repository. The client can work only with repository databases it can access so they must be on the same machine or the same load balancer. | :# [[mw:Extension:Wikibase Client|Wikibase Client]] that allows a wiki to access structured data from a repository. The client can work only with repository databases it can access so they must be on the same machine or the same load balancer. | ||
== Installation of Wikibase == | === Installation of Wikibase === | ||
[[mw:Wikibase/Installation|Wikibase installation instructions at Mediawiki.org]] and [[mw:Wikibase/Installation/Advanced_configuration|advanced configuration of Wikibase]]. | [[mw:Wikibase/Installation|Wikibase installation instructions at Mediawiki.org]] and [[mw:Wikibase/Installation/Advanced_configuration|advanced configuration of Wikibase]]. | ||
The installation instructions assume you are installing the dependencies with [[mw:Composer|Composer]], a PHP package manager that makes the installation of dependencies easy. | The installation instructions assume you are installing the dependencies with [[mw:Composer|Composer]], a PHP package manager that makes the installation of dependencies easy. | ||
== Useful extensions in conjunction with Wikibase == | === Useful extensions in conjunction with Wikibase === | ||
* [[mw:Extension:ArticlePlaceholder]] makes article placeholders from repository data and invites users to create the article. | * [[mw:Extension:ArticlePlaceholder]] makes article placeholders from repository data and invites users to create the article. | ||
* [[mw:Extension:UniversalLanguageSelector]] is recommended to work in conjunction with Wikibase for user comfort. | * [[mw:Extension:UniversalLanguageSelector]] is recommended to work in conjunction with Wikibase for user comfort. | ||
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* [[#LinkedWiki extension]] can be configured to access multiple SPARQL endpoints. | * [[#LinkedWiki extension]] can be configured to access multiple SPARQL endpoints. | ||
== Useful information == | === Useful information === | ||
* [[mw:Wikibase/DataModel|The data model used in Wikibase]] (thorough) and [[mw:Wikibase/DataModel/Primer|the primer on the data model]] (quick access) | * [[mw:Wikibase/DataModel|The data model used in Wikibase]] (thorough) and [[mw:Wikibase/DataModel/Primer|the primer on the data model]] (quick access) | ||
* [https://github.com/wikimedia/mediawiki-extensions-Wikibase/blob/master/docs/federation.wiki Information on the federation of Wikibase at Github] | * [https://github.com/wikimedia/mediawiki-extensions-Wikibase/blob/master/docs/federation.wiki Information on the federation of Wikibase at Github] | ||
* [https://phabricator.wikimedia.org/T159240 Phabricator Task to "Document how to set up federated Wikibase instances"] | * [https://phabricator.wikimedia.org/T159240 Phabricator Task to "Document how to set up federated Wikibase instances"] | ||
* [https://phabricator.wikimedia.org/T196997 Phabricator Task to "Wikidata/Wikibase federation and distribution"] and the [https://docs.google.com/document/d/1YYIuQzcWz2cH9zTUbbfiBrTecVxMWAu3_9-U4DcKzEU/edit#heading=h.z49pje934vur Google Docs document charting out the task] | * [https://phabricator.wikimedia.org/T196997 Phabricator Task to "Wikidata/Wikibase federation and distribution"] and the [https://docs.google.com/document/d/1YYIuQzcWz2cH9zTUbbfiBrTecVxMWAu3_9-U4DcKzEU/edit#heading=h.z49pje934vur Google Docs document charting out the task] | ||
---- | ---- | ||
= Semantic MediaWiki = | = Semantic MediaWiki = | ||
[[File:SemanticMediaWiki_Logo.png|thumb|right|200px| | [[File:SemanticMediaWiki_Logo.png|thumb|right|200px|The [https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki Semantic MediaWiki] logo]] | ||
'''Semantic MediaWiki''' [https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki (.org)] (SMW) is a free, open-source [[MediaWiki extensions|extension]] to [[MediaWiki]] that lets you store & query semantic data within the wiki and it seems well suited to [[Consumerium]]'s information infrastructure needs. | '''Semantic MediaWiki''' [https://www.semantic-mediawiki.org/wiki/Semantic_MediaWiki (.org)] (SMW) is a free, open-source [[MediaWiki extensions|extension]] to [[MediaWiki]] that lets you store & query semantic data within the wiki and it seems well suited to [[Consumerium]]'s information infrastructure needs. | ||
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---- | ---- | ||
= Open Food Facts = | |||
{{:Open Food Facts}} | |||
---- | |||
= DBpedia = | |||
[[File:DBpediaLogo.svg|thumb|right|260px|The [https://www.dbpedia.org/ DBpedia] logo]] | |||
'''[[w:DBpedia|DBpedia]]''' [https://www.dbpedia.org/ (.org)] is a community effort to enable the web moving ''"Towards a Public Data Infrastructure for a Large, Multilingual, Semantic Knowledge Graph"''. | |||
Today the DBpedia '''[[w:data set|data set]]s''' contain a wealth of information structured into '''[[w:Ontology (information science)|ontologies]]'''. This [[w:structured data|structured data]] can be queried with [[SPARQL]] query language at their [http://dbpedia.org/sparql public DBpedia SPARQL endpoint]. | |||
DBpedia uses [[w:Virtuoso Universal Server]] to store and query the data. [https://www.w3.org/wiki/VirtuosoUniversalServer VirtuosoUniversalServer at w3.org] | |||
There are many methods how the DBpedia ontology and datasets could be used in the Consumerium implementation stage wiki. | |||
== Ontology classes useful for implementing Consumerium == | |||
'''[https://dief.tools.dbpedia.org/server/ontology/classes/ All DBpedia ontology classes]''' | |||
* [http://mappings.dbpedia.org/server/ontology/classes/Company Company] | |||
* [http://mappings.dbpedia.org/server/ontology/classes/Non-ProfitOrganisation Non-ProfitOrganisation] | |||
* [http://mappings.dbpedia.org/server/ontology/classes/Food Food] | |||
** [http://mappings.dbpedia.org/server/ontology/classes/Beverage Beverage] | |||
* [http://mappings.dbpedia.org/server/ontology/classes/MeanOfTransportation MeanOfTransportation] | |||
** [http://mappings.dbpedia.org/server/ontology/classes/Aircraft Aircraft] | |||
** [http://mappings.dbpedia.org/server/ontology/classes/Automobile Automobile] | |||
** [http://mappings.dbpedia.org/server/ontology/classes/Locomotive Locomotive] | |||
** [http://mappings.dbpedia.org/server/ontology/classes/Ship Ship] | |||
* [http://mappings.dbpedia.org/server/ontology/classes/Place Place] | |||
** [http://mappings.dbpedia.org/server/ontology/classes/ArchitecturalStructure ArchitecturalStructure] | |||
*** [http://mappings.dbpedia.org/server/ontology/classes/Building Building] | |||
**** [http://mappings.dbpedia.org/server/ontology/classes/Hotel Hotel] | |||
**** [http://mappings.dbpedia.org/server/ontology/classes/Restaurant Restaurant] | |||
**** [http://mappings.dbpedia.org/server/ontology/classes/ShoppingMall ShoppingMall] | |||
*** [http://mappings.dbpedia.org/server/ontology/classes/Infrastructure Infrastructure] | |||
**** [http://mappings.dbpedia.org/server/ontology/classes/Airport Airport] | |||
**** [http://mappings.dbpedia.org/server/ontology/classes/RouteOfTransportation RouteOfTransportation] | |||
***** [http://mappings.dbpedia.org/server/ontology/classes/RailwayLine RailwayLine] | |||
***** [http://mappings.dbpedia.org/server/ontology/classes/Road Road] | |||
**** [http://mappings.dbpedia.org/server/ontology/classes/Station Station] | |||
***** [http://mappings.dbpedia.org/server/ontology/classes/RailwayStation RailwayStation] | |||
* [http://mappings.dbpedia.org/server/ontology/classes/PopulatedPlace PopulatedPlace] | |||
** [http://mappings.dbpedia.org/server/ontology/classes/AdministrativeRegion AdministrativeRegion] | |||
** [http://mappings.dbpedia.org/server/ontology/classes/Continent Continent] | |||
** [http://mappings.dbpedia.org/server/ontology/classes/Country Country] | |||
** [http://mappings.dbpedia.org/server/ontology/classes/Island Island] | |||
** [http://mappings.dbpedia.org/server/ontology/classes/Settlement Settlement] | |||
*** [http://mappings.dbpedia.org/server/ontology/classes/City City] | |||
*** [http://mappings.dbpedia.org/server/ontology/classes/Town Town] | |||
*** [http://mappings.dbpedia.org/server/ontology/classes/Village Village] | |||
== DBpedia datasets == | |||
* '''[http://wiki.dbpedia.org/Datasets DBpedia datasets]''' have been released annually, sometimes with improvements more frequently. The latest (as of July 2018) [https://wiki.dbpedia.org/develop/datasets/dbpedia-version-2016-10 DBpedia dataset version is 2016-10] which was published in 2017. | |||
== DBpedia Databus == | |||
The [https://databus.dbpedia.org/ '''DBpedia Databus''' at databus.dbpedia.org] ''is a data cataloging and versioning platform for data developers and consumers.'' | |||
[https://databus.dbpedia.org/sparql '''SPARQL endpoint''' at databus.dbpedia.org] | |||
DBpedia developed the DBpedia Databus in the late 2010's with a Databus alpha published in May 2018. | |||
== History of DBpedia == | |||
DBpedia began as an effort to extract structured information from [[Wikipedia]] [[templates|infobox templates]] and [[categories]] and to make this information available on the Web with the initial release on January 10th 2007. | |||
== More info on DBpedia == | |||
* [https://wiki.dbpedia.org/ DBpedia wiki] | |||
* [https://blog.dbpedia.org/ DBpedia blog] | |||
* [https://github.com/dbpedia/ DBpedia code at GitHub] | |||
---- | |||
= LinkedWiki extension = | = LinkedWiki extension = | ||
[[File:LogoLinkedWiki.png|thumb|right|260px|Logo of the [[mw:Extension:LinkedWiki|LinkedWiki extension]]]] | [[File:LogoLinkedWiki.png|thumb|right|260px|Logo of the [[mw:Extension:LinkedWiki|LinkedWiki extension]]]] | ||
A possible way to tap into various knowledge graphs is the [[mw:Extension:LinkedWiki|LinkedWiki extension]]. LinkedWiki has been developed since 2010 by [[mw:User:Karima Rafes]], a [[#Semantic MediaWiki]] developer and CEO of [http://www.bordercloud.com/ BorderCloud.com] | A possible way to tap into various knowledge graphs is the [[mw:Extension:LinkedWiki|LinkedWiki extension]]. LinkedWiki has been developed since 2010 by [[mw:User:Karima Rafes]], a [[#Semantic MediaWiki]] developer and CEO of [http://www.bordercloud.com/ BorderCloud.com] | ||
''' See also ''' | |||
* [https://linkedwiki.com/ LinkedWiki.com - The best place to discover available Linked Data and to share SPARQL queries] | |||
* [[Database]] for a higher level view of what is going on with the databases | * [[Database]] for a higher level view of what is going on with the databases | ||
= References = | |||
<references/> | |||
[[Category:List]] | |||
[[Category:Technology]] | |||