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Knowledge graphs: Difference between revisions

2,085 bytes added ,  16 February 2019
moved contents from Wikibase unchanged to gain better understanding of the possibilities and issues
(moved contents from Semantic MediaWiki unchanged to gain better understanding of the possibilities and issues)
(moved contents from Wikibase unchanged to gain better understanding of the possibilities and issues)
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* [[Semantic MediaWiki]] is system for inputting and querying semantic data within the MediaWiki and it is implemented as extension(s).
* [[Semantic MediaWiki]] is system for inputting and querying semantic data within the MediaWiki and it is implemented as extension(s).
* [[DBpedia]] the original structured data harvesting effort for the MediaWiki wikis
* [[DBpedia]] the original structured data harvesting effort for the MediaWiki wikis
== Wikibase ==
'''[[mw:Wikibase|Wikibase]]''' [http://wikiba.se/ (wikiba.se)] is a system for storing and querying structured data that powers [[Wikidata]] and other wikis.
Wikibase consists of two extensions:
:# [[mw:Extension:Wikibase Repository|Wikibase Repository]] that allows a wiki to work as a repository for structured data.
:# [[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 ===
[[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.
=== Related useful extensions ===
* [[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.
=== Alternative to using Wikibase Client ===
* [[mw:Extension:LinkedWiki]] can be configured to access multiple SPARQL endpoints.
=== 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)
* [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/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]


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