Difference between revisions of "Wikidata"
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* https://www.mediawiki.org/wiki/API:Presenting_Wikidata_knowledge | * https://www.mediawiki.org/wiki/API:Presenting_Wikidata_knowledge | ||
− | [[Category: | + | [[Category:Wikidata]] |
Latest revision as of 08:22, 18 April 2023
The Genesis of WikiData
Links
- Get your own copy of WikiData
- WikiBase DataModel
- https://www.wikidata.org/wiki/Special:GoToLinkedPage/enwiki/Q5
Structure
see also https://addshore.com/2018/12/wikidata-architecture-overview-diagrams/ https://www.mediawiki.org/wiki/Wikibase/DataModel/Primer
![](/images/wiki/diagrams/Diagrams_ad94aaa5633cf7a81cd22ca20d09bbc8.png)
https://upload.wikimedia.org/wikipedia/commons/c/c2/Wikibase_JavaScript_Data_Model_1.0.svg
Example
Æthelstan King of the English - 927-939
Position Held
Queen Victoria
- https://en.wikipedia.org/wiki/Queen_Victoria
- https://www.wikidata.org/wiki/Q9439
- http://royal-family.bitplan.com/index.php/Queen_Victoria
Entity:Queen Victoria
Statements | |
---|---|
PropertyId/name | value |
P18/image | ![]() |
P569/date of birth | 24 May 1819 |
P39/position held | Q9134365/Monarch of the United Kingdom qualifiers -> start:20 June 1837, end:22 January 1901, replaced by:https://www.wikidata.org/wiki/Q20875 |
P570/date of death | 22 January 1901 |
P20/place of death | Osborne House |
P21/sex or gender] | Q6581072/female |
Descendants of Queen Victoria
# WikiData SPARQL Query
#
# Wolfgang Fahl 2018-01-06
#
# get childen of queen victoria
SELECT ?child ?childLabel ?genderLabel ?dob
WHERE {
#
# child
# https://www.wikidata.org/wiki/Property:P40
# Queen Victoria
# https://www.wikidata.org/wiki/Q9439
wd:Q9439 wdt:P40+ ?child.
# gender
# https://www.wikidata.org/wiki/Property:P21
?child wdt:P21 ?gender.
# date of birth
# https://www.wikidata.org/wiki/Property:P569
?child wdt:P569 ?dob
SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
}
ORDER BY ?dob
How Triples are stored in WikiData
Regular triple
![](/images/wiki/diagrams/Diagrams_b5043b34adf1cf9f03cc7977c1ca015f.png)
WikiData Example Queen Victoria's father
![](/images/wiki/diagrams/Diagrams_4518bd357041ffff2861a83f6e439ebc.png)
WikiData Example Queen Victoria's father (technically)
![](/images/wiki/diagrams/Diagrams_69fe283f436719ba4ac4f42a40e7312c.png)
WikiData Example Queen Victoria's father (multiple languages)
![](/images/wiki/diagrams/Diagrams_90128f27d667bfdf6f0c537a7aadb70d.png)
Queen Victoria's father SPARQL Query
# WikiData SPARQL Query
#
# Wolfgang Fahl 2018-01-06
# see also https://stackoverflow.com/a/48341522/1497139
#
# get father of queen victoria
SELECT ?queenVictoria ?queenVictoriaLabel ?fatherProperty ?fatherPropertyLabel ?father ?fatherLabel
WHERE {
#
# father
# https://www.wikidata.org/wiki/Property:P42
# Queen Victoria
# https://www.wikidata.org/wiki/Q9439
VALUES (?queenVictoria) {(wd:Q9439)}
VALUES (?property) {(wdt:P22)}
?queenVictoria ?property ?father.
?fatherProperty wikibase:directClaim ?property
SERVICE wikibase:label { bd:serviceParam wikibase:language "fr". }
}
Import
- Get_your_own_copy_of_WikiData
- https://www.wikidata.org/wiki/Wikidata:Data_Import_Guide
- https://www.wikidata.org/wiki/Q2140665
- https://github.com/maxlath/wikidata-cli
- https://www.wikidata.org/wiki/Wikidata:Tools/External_tools
Virtuoso Import
- http://wikidata.demo.openlinksw.com/sparql -- SPARQL endpoint
- http://wikidata.demo.openlinksw.com/fct -- Faceted Browsing Interface
- https://wikidata.demo.openlinksw.com/describe/?url=http%3A%2F%2Fwww.wikidata.org%2Fentity%2FQ60&gp=16&go=&lp=940&invfp=IFP_OFF&sas=SAME_AS_OFF&distinct=1
Ontology
- https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/extensions/Wikibase/+/master/docs/ontology.owl
- https://www.mediawiki.org/wiki/Wikibase/DataModel
Tools
- https://github.com/maxlath/wikidata-cli/blob/master/docs/write_operations.md#wd-create-item
- https://quickstatements.toolforge.org