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for the entity schema of building data instances. This extension has since been installed on
Wikidata and enables contributors to use ShEx for validating and describing Resource Description Framework data in items and lexemes. Any item or lexeme on Wikidata can be validated against an Entity Schema,
1775:
Thornton, Katherine; Solbrig, Harold; Stupp, Gregory S.; Labra Gayo, Jose Emilio; Mietchen, Daniel; Prud’hommeaux, Eric; Waagmeester, Andra (2019), Hitzler, Pascal; Fernández, Miriam; Janowicz, Krzysztof; Zaveri, Amrapali (eds.), "Using Shape
Expressions (ShEx) to Share RDF Data Models and to Guide
897:, or access from a given article of a Knowledge to the statements on Wikidata items not directly connected to it. For example, it became possible to read data about Germany from the Berlin article, which was not feasible before. On 27 April 2016, arbitrary access was activated on Wikimedia Commons.
840:
Wikidata was launched on 29 October 2012 and was the first new project of the
Wikimedia Foundation since 2006. At this time, only the centralization of language links was available. This enabled items to be created and filled with basic information: a label – a name or title, aliases – alternative
640:. Lexicographical entries in Wikidata can contain statements, senses, and forms. The use of lexicographical entries in Wikidata allows for the documentation of word usage, the connection between words and items on Wikidata, word translations, and enables machine-readable lexicographical data.
708:
In
January 2019, development started of a new extension for MediaWiki to enable storing ShEx in a separate namespace. Entity schemas are stored with different identifiers than those used for items, properties, and lexemes. Entity schemas are stored with an "E" identifier, such as
532:
can be used to refine the meaning of a statement by providing additional information. For example, a "population" statement could be modified with a qualifier such as "point in time (P585): 2011" (as its own key-value pair). Values in the statements may also be annotated with
553:
Each property has a numeric identifier prefixed with a capital P and a page on
Wikidata with optional label, description, aliases, and statements. As such, there are properties with the sole purpose of describing other properties, such as
825:
2134:
346:, a positive integer prefixed with the upper-case letter Q, known as a "QID". Q is the starting letter of the first name of Qamarniso Vrandečić (née Ismoilova), an Uzbek Wikimedian married to the Wikidata co-developer
981:
As of
November 2018, Wikidata information was used in 58.4% of all English Knowledge articles, mostly for external identifiers or coordinate locations. In aggregate, data from Wikidata is shown in 64% of all
575:
property includes a "single value constraint", reflecting the reality that (typically) territories have only one capital city. Constraints are treated as testing alerts and hints, rather than inviolable rules.
892:
The ability for the various language editions of
Knowledge to access data from Wikidata was rolled out progressively between 27 March and 25 April 2013. On 16 September 2015, Wikidata began allowing so-called
868:
on 13 February and to all other
Wikipedias on 6 March. After no consensus was reached over a proposal to restrict the removal of language links from the English Knowledge, they were automatically removed by
844:
Historically, a
Knowledge article would include a list of interlanguage links (links to articles on the same topic in other editions of Knowledge, if they existed). Wikidata was originally a self-contained
1848:
2552:
881:
On 4 February 2013, statements were introduced to
Wikidata entries. The possible values for properties were initially limited to two data types (items and images on Wikimedia Commons), with more
518:
Values may take on many types including other Wikidata items, strings, numbers, or media files. Properties prescribe what types of values they may be paired with. For example, the property
2583:
2126:
2862:
1719:
2054:
Pellissier Tanon, Thomas; Vrandečić, Denny; Schaffert, Sebastian; Steiner, Thomas; Pintscher, Lydia (11 April 2016). "From Freebase to Wikidata: The Great Migration": 1419–1428.
2388:
816:
to Wikidata. Each link in these lists is to an article that requires its own list of interlanguage links to the other articles; this is the information centralized by Wikidata.
2414:
632:
In Wikidata, lexicographical entries have a different identifier from regular item entries. These entries are prefixed with the letter L, such as in the example entries for
849:
of interlanguage links. Knowledge language editions were still not able to access Wikidata, so they needed to continue to maintain their own lists of interlanguage links.
2281:
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2103:
2525:
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1498:
2335:
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60:
53:
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1005:
As of December 2020, Wikidata's data was visualized by at least 20 other external tools and over 300 papers have been published about Wikidata.
770:
1942:
Turki, Houcemeddine; Shafee, Thomas; Hadj Taieb, Mohamed Ali; Ben Aouicha, Mohamed; Vrandečić, Denny; Das, Diptanshu; Hamdi, Helmi (November 2019).
841:
terms for the label, a description, and links to articles about the topic in all the various language editions of Knowledge (interwikipedia links).
3934:
1165:
2218:
1641:
673:
In Wikidata, a schema is a data model that outlines the necessary attributes for a data item. For instance, a data item that uses the attribute "
3102:
3440:
3119:
Mora-Cantallops, Marçal; Sánchez-Alonso, Salvador; GarcĂa-Barriocanal, Elena (2 September 2019). "A systematic literature review on Wikidata".
1840:
2544:
3863:
3804:
2880:
2866:
2503:
1214:
734:
Wikidata's content collections include data for biographies, medicine, digital humanities, scholarly metadata through the WikiCite project.
1663:
Nielsen, Finn (May 2020) . Ionov, Maxim; McCrae, John P.; Chiarcos, Christian; Declerck, Thierry; Bosque-Gil, Julia; Gracia, Jorge (eds.).
2476:
924:
as the query language. As of November 2018, there are at least 26 different tools that allow querying the data in different ways. It uses
350:. This enables the basic information required to identify the topic that the item covers to be translated without favouring any language.
3924:
1462:
750:
2840:
3268:
1404:
537:, pointing to a source backing up the statement's content. As with statements, all qualifiers and references are property–value pairs.
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920:
announced the release of the Wikidata Query Service, which lets users run queries on the data contained in Wikidata. The service uses
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3034:
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2384:
900:
According to a 2020 study, a large proportion of the data on Wikidata consists of entries imported en masse from other databases by
2575:
2738:
2904:
621:
meaning representing a group of words that share the same core meaning and grammatical characteristics. Similarly, Wikidata's
487:" or "1902"). For example, the informal English statement "milk is white" would be encoded by a statement pairing the property
1818:
1521:
2260:
2038:
1795:
1753:
1676:
1611:
1543:
1478:
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released the Query Builder, "a form-based query builder to allow people who don't know how to use SPARQL" to write a query.
3159:
812:
A Knowledge article's list of interlanguage links as they appeared in an edit box (left) and on the article's page (right)
413:. However, the combination of a label and its description must be unique. To avoid ambiguity, an item's unique identifier (
2277:
2127:"Knowledge's Next Big Thing: Wikidata, A Machine-Readable, User-Editable Database Funded By Google, Paul Allen And Others"
3057:
431:
A layout of the four main components of a phase-1 Wikidata page: the label, description, aliases, and interlanguage links
1193:
787:
Creating and updating list articles based on data in Wikidata and linking to other Wikimedia sister projects, including
3433:
2968:
2548:
1427:
103:
1878:
1314:
643:
In 2020, lexicographical entries on Wikidata exceeded 250,000. The language with the most lexicographical entries was
1705:
1344:
1282:
856:
became the first to enable the provision of interlanguage links via Wikidata. This functionality was extended to the
777:
Centralising interlanguage links – links between Knowledge articles about the same topic in different languages.
754:
515:
could be linked with the values "physicist" and "chemist", to reflect the fact that she engaged in both occupations.
122:
75:
2095:
1900:
Chisholm, Andrew; Radford, Will; Hachey, Ben (2017). "Learning to generate one-sentence biographies from Wikidata".
3823:
2410:
1374:
1236:
2604:
2304:
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3350:
1598:, Lecture Notes in Computer Science, vol. 11762, Cham: Springer International Publishing, pp. 141–146,
2164:
82:
3325:
3261:
2248:
702:
2331:
3426:
3408:
342:, focusing on items, which represent any kind of topic, concept, or object. Each item is allocated a unique,
403:
3873:
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3368:
2991:
2358:
846:
2705:"[Wikidata] Announcing the release of the Wikidata Query Service - Wikidata - lists.wikimedia.org"
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495:
471:
Statements are how any information known about an item is recorded in Wikidata. Formally, they consist of
382:
368:
89:
3919:
3904:
3815:
3511:
2682:
705:(RDF). The use of entity schemas in Wikidata helps address data inconsistencies and unchecked vandalism.
1457:
Samuel, John (15 August 2018). "Experimental IR Meets Multilinguality, Multimodality, and Interaction".
1161:
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Items for scholarly articles are the biggest part of Wikidata, followed by the collection of biographies
583:
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502:
354:
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375:
361:
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Waagmeester, Andra; Stupp, Gregory; Burgstaller-Muehlbacher, Sebastian; et al. (17 March 2020).
2579:
2441:
952:
597:
71:
3178:
In, OpenSym 2015 – Conference on Open Collaboration, San Francisco, US, 19 – 21 Aug 2015 (preprint).
2080:
1928:
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Nielsen, Finn Ă…rup (2019), Hitzler, Pascal; Kirrane, Sabrina; Hartig, Olaf; de Boer, Victor (eds.),
569:
2015:
1565:
Bonami, Olivier; Boyé, Gilles; Dal, Georgette; Giraudo, Hélène; Namer, Fiammetta (23 August 2018).
472:
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Statements may map a property to more than one value. For example, the "occupation" property for
49:
1494:
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3537:
710:
666:
484:
2760:
2252:
1732:
Erxleben, Fredo; Günther, Michael; Krötzsch, Markus; Mendez, Julian; Vrandečić, Denny (2014),
391:
Item labels do not need to be unique. For example, there are two items named "Elvis Presley":
3752:
3301:
2836:
2704:
2187:
2067:
1915:
1036:
KDE Itinerary – a privacy conscious open source travel assistant that uses data from Wikidata
940:
766:
446:
Optionally, multiple aliases and some number of statements (and their properties and values).
410:
343:
2781:(The message also contains a link to the graph databases comparison performed by Wikimedia.)
1065:
A systematic literature review of the uses of Wikidata in research was carried out in 2019.
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with 38,122 lexemes. There are over 668 languages with lexicographical entries on Wikidata.
3789:
3747:
3647:
3449:
3396:
1115:
917:
824:
347:
309:
286:
205:
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data. Since 2016, Wikidata has supported lexicographical entries in the form of lexemes.
8:
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853:
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1901:
1288:
1105:
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1058:
983:
694:
682:
674:
637:
27:
3175:
Peer-production system or collaborative ontology development effort: What is Wikidata?
3100:
Mining Mathematical Documents for Question Answering via Unsupervised Formula Labeling
96:
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3552:
3501:
3335:
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3225:
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3001:
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2256:
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1963:
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1607:
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1534:
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865:
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464:
231:
3612:
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1128:
1076:
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3757:
3592:
3557:
3486:
3128:
2996:
2790:
2656:
2638:
2620:
2055:
2026:
1994:
1955:
1781:
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1599:
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1529:
1466:
1270:
1030:
905:
857:
648:
644:
3174:
1135:
662:
3597:
3392:
3232:
3106:
2863:"First ODI Open Data Awards presented by Sirs Tim Berners-Lee and Nigel Shadbolt"
2468:
2030:
1786:
1733:
1603:
1470:
1262:
1197:
1082:
1043:
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and dates) to follow later. The first new type, string, was deployed on 6 March.
564:
Properties may also define more complex rules about their intended usage, termed
317:
282:
1745:
158:
3577:
3567:
3547:
3506:
3400:
3388:
3118:
933:
179:
3602:
1959:
1780:, vol. 11503, Cham: Springer International Publishing, pp. 606–620,
589:, which is used on more than 290,000,000 item pages as of November 2023.
545:
3888:
3714:
3617:
3582:
3542:
3132:
3005:
2634:
2240:
1396:
870:
399:
301:
3172:
Claudia Müller-Birn, Benjamin Karran, Janette Lehmann, Markus Luczak-Rösch:
2059:
1274:
873:. On 23 September 2013, interlanguage links went live on Wikimedia Commons.
579:
Before a new property is created, it needs to undergo a discussion process.
3840:
3767:
3607:
3587:
3404:
3384:
3164:
2652:
2606:
2245:
Knowledge U: Knowledge, Authority, and Liberal Education in the Digital Age
1967:
1576:
1023:
967:
In November 2014, Wikidata received the Open Data Publisher Award from the
901:
758:
626:
455:
2930:
2660:
1999:
1982:
1664:
1050:
and transfer it into Wikidata by coming up with relevant statements using
425:
3784:
3704:
3694:
3572:
3562:
3521:
3380:
3291:
2885:
2053:
959:. It was created by Arun Ganesh and selected through community decision.
929:
610:
512:
2625:
2025:. Lecture Notes in Computer Science. Vol. 10577. pp. 237–259.
1669:
Proceedings of the 7th Workshop on Linked Data in Linguistics (LDL-2020)
1136:"The Wikidata revolution is here: enabling structured data on Knowledge"
726:
328:
3709:
3689:
3664:
3622:
3418:
1465:
2018. Lecture Notes in Computer Science. Vol. 11018. p. 129.
995:
987:
956:
925:
832:
takes the reader to Wikidata to edit interlanguage and interwiki links.
460:
440:
2730:
1261:
Vrandečić, Denny; Pintscher, Lydia; Krötzsch, Markus (30 April 2023).
3799:
3779:
3684:
3679:
3642:
3277:
1671:. Marseille, France: European Language Resources Association: 82–86.
1459:
Experimental IR Meets Multilinguality, Multimodality, and Interaction
1047:
991:
882:
788:
305:
294:
290:
1944:"Wikidata: A large-scale collaborative ontological medical database"
1943:
1810:
1566:
38:
3699:
2761:"[Wikidata-tech] Wikidata Query Backend Update (take two!)"
1906:
1110:
1095:
678:
549:
Example of a simple statement consisting of one property–value pair
313:
144:
20:
3083:
2096:"Paul Allen Invests In A Massive Project To Make Knowledge Better"
625:
are items with a structure that makes them more suitable to store
479:(such as "author", or "publication date") with one or more entity
1100:
781:
2014:
Nielsen, Finn Ă…rup; Mietchen, Daniel; Willighagen, Egon (2017).
1983:"A systematic review of Wikidata in Digital Humanities projects"
1941:
765:
1.3 million. The development of the project is mainly driven by
737:
It includes data collections from other open projects including
3087:
2794:
2529:
1039:
921:
701:(ShEx) to describe the data in Wikidata items in the form of a
614:
1774:
3241:
2960:
2611:
1731:
749:
The creation of the project was funded by donations from the
333:
This diagram shows the most important terms used in Wikidata.
316:. As of mid-2024, Wikidata had 1.57 billion item statements (
3246:
2806:
1870:
1306:
1185:
1183:
1740:, Cham: Springer International Publishing, pp. 50–65,
1336:
1019:
974:
In December 2014, Google announced that it would shut down
762:
718:
and this makes it an important tool for quality assurance.
698:
278:
184:
2013:
1260:
2905:"Percentage of articles making use of data from Wikidata"
1366:
1180:
298:
1634:"Wikidata:Lexicographical data/Documentation – Wikidata"
2545:"Wikidata: Access to data from arbitrary items is here"
2156:
1718:
Hernández, Daniel; Hogan, Aidan; Krötzsch, M. (2015). "
911:
3109:
ACM/IEEE Joint Conference on Digital Libraries, 2022.
2607:"Wikidata as a knowledge graph for the life sciences"
1899:
1495:"Wikidata:Database reports/List of properties/Top100"
3059:
KDE Itinerary – A privacy by design travel assistant
2278:"First steps of Wikidata in the Hungarian Knowledge"
1568:
The Lexeme In Descriptive And Theoretical Morphology
1564:
1267:
Companion Proceedings of the ACM Web Conference 2023
1072:
304:
license. Wikidata is a wiki powered by the software
463:(Q111). Values include links to other items and to
1428:"Wikidata as a digital preservation knowledgebase"
713:for the entity schema of human data instances and
26:For Knowledge's information page on Wikidata, see
1029:Mwnci extension can import data from Wikidata to
3886:
2356:
2329:
2302:
2275:
2149:
1148:Since Wikidata.org went live on 30 October 2012,
443:(the QID), related to a label and a description.
2674:
1592:"Ordia: A Web Application for Wikidata Lexemes"
1014:Wikidata's structured dataset has been used by
647:, with a total of 101,137 lexemes, followed by
1046:project that aims to parse the information on
773:, and was originally split into three phases:
681:" would typically include attributes such as "
525:may only be paired with values of type "URL".
3864:Artificial intelligence in Wikimedia projects
3434:
3262:
2992:"Inside the Alexa-Friendly World of Wikidata"
2824:commons:File talk:Wikidata-logo-en.svg#Hybrid
1734:"Introducing Wikidata to the Linked Data Web"
876:
2576:"Wikidata support: arbitrary access is here"
2305:"Wikidata coming to the next two Wikipedias"
2023:The Semantic Web: ESWC 2017 Satellite Events
1720:Reifying RDF: What Works Well With Wikidata?
1596:The Semantic Web: ESWC 2019 Satellite Events
1189:
297:, and anyone else, is able to use under the
3157:
2296:
1694:
904:, which helps to "break down the walls" of
751:Allen Institute for Artificial Intelligence
3441:
3427:
3269:
3255:
3224:
2931:"Wikidata:Tools/Visualize data – Wikidata"
2188:"wikidata.org is live (with some caveats)"
971:"for sheer scale, and built-in openness".
697:." The entity schema in Wikidata utilizes
230:
143:
3219:
2642:
2624:
2573:
2542:
2497:
2435:
2185:
2093:
1998:
1905:
1785:
1533:
224:
123:Learn how and when to remove this message
3448:
2989:
2332:"Wikidata live on the English Knowledge"
1425:
1213:. Wikimedia Deutschland. 30 March 2012.
823:
805:
725:
661:
596:
544:
454:
424:
327:
3935:Internet properties established in 2012
3027:"Rob Barry / Mwnci – Deep Spreadsheets"
2411:"Knowledge talk:Wikidata interwiki RFC"
1662:
1589:
1519:
1159:
417:) is hence linked to this combination.
3887:
3055:
3037:from the original on 21 September 2019
2971:from the original on 30 September 2021
2731:"Wikidata:Tools/Query data – Wikidata"
2555:from the original on 27 September 2016
2543:Pintscher, Lydia (16 September 2015).
2528:. The H. 25 April 2013. Archived from
2436:Pintscher, Lydia (23 September 2013).
2239:
2016:"Scholia, Scientometrics and Wikidata"
1704:. Karlsruhe: Fakultät für Informatik,
1456:
791:and the own Wikidata (interwikilinks).
59:Please improve this article by adding
3422:
3250:
2941:from the original on 15 November 2018
2711:from the original on 10 November 2015
2466:
2385:"Wikidata ist fĂĽr alle Wikipedien da"
2359:"Wikidata now live on all Wikipedias"
2338:from the original on 19 February 2013
2330:Pintscher, Lydia (13 February 2013).
2284:from the original on 14 December 2015
2124:
2106:from the original on 23 December 2017
1987:Digital Scholarship in the Humanities
1690:
1688:
1644:from the original on 13 November 2018
1501:from the original on 24 February 2023
2843:from the original on 21 January 2021
2685:from the original on 7 November 2016
2586:from the original on 5 February 2017
2469:"Wikidata/Status updates/2013 03 01"
2448:from the original on 6 December 2021
2417:from the original on 18 October 2021
2391:from the original on 6 November 2018
2303:Pintscher, Lydia (30 January 2013).
2276:Pintscher, Lydia (14 January 2013).
2212:
2186:Pintscher, Lydia (30 October 2012).
2094:Dickinson, Boonsri (30 March 2012).
1980:
1881:from the original on 19 October 2021
1811:"Extension:EntitySchema – MediaWiki"
1776:Curation with Rigorous Validation",
1426:Cochrane, Euan (30 September 2016).
1217:from the original on 23 October 2012
912:Query service and other improvements
435:Fundamentally, an item consists of:
32:
2771:from the original on 6 January 2021
2311:from the original on 4 October 2018
2137:from the original on 5 October 2012
1438:from the original on 5 January 2022
1168:from the original on 2 October 2021
955:contain the word "WIKI" encoded in
163:Main page of Wikidata in April 2021
13:
3925:Creative Commons-licensed websites
3151:
3121:Data Technologies and Applications
3098:Scharpf, P. Schubotz, M. Gipp, B.
3056:Krause, Volker (12 January 2020),
2990:Simonite, Tom (18 February 2019).
2889:. 16 December 2014. Archived from
2574:Pintscher, Lydia (27 April 2016).
2549:Knowledge:Village pump (technical)
2506:from the original on 29 March 2013
2498:Pintscher, Lydia (27 March 2013).
2479:from the original on 12 April 2013
2365:from the original on 14 April 2013
1851:from the original on 19 March 2022
1685:
1665:"Lexemes in Wikidata: 2020 status"
1397:"Help:Property constraints portal"
1377:from the original on 17 April 2019
1347:from the original on 23 March 2019
1317:from the original on 25 March 2019
795:
461:Wikidata's item on the planet Mars
14:
3946:
3471:Knowledge community (Wikipedians)
3182:
3066:from the original on 26 June 2020
2357:Pintscher, Lydia (6 March 2013).
2221:from the original on 31 July 2020
2167:from the original on 7 April 2012
1948:Journal of Biomedical Informatics
1821:from the original on 25 June 2021
1738:Lecture Notes in Computer Science
1706:Karlsruhe Institute of Technology
1520:Andreou, Marios (27 March 2019),
864:Wikipedias on 30 January, to the
755:Gordon and Betty Moore Foundation
657:
3189:
2741:from the original on 31 May 2020
1407:from the original on 1 June 2019
1162:"Welcome to Wikidata! Now what?"
1075:
293:that Wikimedia projects such as
157:
37:
3810:Monkey selfie copyright dispute
3112:
3092:
3077:
3049:
3019:
2983:
2953:
2923:
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2269:
2233:
2215:"The Knowledge data revolution"
2213:Roth, Matthew (30 March 2012).
2206:
2179:
2118:
2087:
2047:
2007:
1974:
1935:
1893:
1863:
1833:
1803:
1768:
1725:
1712:
1656:
1626:
1583:
1558:
1513:
1487:
1450:
1419:
1389:
1211:"Data Revolution for Knowledge"
1160:Chalabi, Mona (26 April 2013).
1008:
16:Free knowledge database project
2526:"Wikidata goes live worldwide"
2249:Johns Hopkins University Press
2125:Perez, Sarah (30 March 2012).
1535:10.1093/obo/9780199772810-0232
1359:
1329:
1299:
1254:
1229:
1203:
1153:
780:Providing a central place for
744:
703:Resource Description Framework
308:, including its extension for
1:
3276:
1121:
540:
450:
420:
400:the American singer and actor
61:secondary or tertiary sources
3874:Knowledge for World Heritage
3795:WikiConference North America
3369:Open energy system databases
3158:Mark Graham (6 April 2012),
2500:"You can have all the data!"
2031:10.1007/978-3-319-70407-4_36
1787:10.1007/978-3-030-21348-0_39
1698:Schema Inference of Wikidata
1604:10.1007/978-3-030-32327-1_28
1471:10.1007/978-3-319-98932-7_12
1307:"Help:Statements – Wikidata"
962:
7:
3816:Wikimedia Foundation v. NSA
3512:Rosie Stephenson-Goodknight
3160:"The Problem With Wikidata"
1981:Zhao, Fudie (31 May 2023).
1746:10.1007/978-3-319-11964-9_4
1695:Werkmeister, Lucas (2018).
1528:, Oxford University Press,
1337:"Help:Data type – Wikidata"
1068:
289:. It is a common source of
10:
3951:
3743:List of Wikimedia chapters
1841:"Initial empty repository"
877:Statements and data access
721:
592:
582:The most used property is
353:Examples of items include
340:document-oriented database
323:
25:
18:
3832:
3730:
3635:
3530:
3479:
3463:
3456:
3377:
3361:
3310:
3284:
2837:"Und der Gewinner ist..."
2502:. Wikimedia Deutschland.
2361:. Wikimedia Deutschland.
2334:. Wikimedia Deutschland.
2307:. Wikimedia Deutschland.
2280:. Wikimedia Deutschland.
1960:10.1016/j.jbi.2019.103292
1367:"Help:Sources – Wikidata"
1263:"Wikidata: The Making of"
916:On 7 September 2015, the
822:
804:
254:
246:
238:
219:
211:
201:
193:
170:
151:
142:
3133:10.1108/DTA-12-2018-0110
3105:10 February 2023 at the
2807:"Wikidata Query Builder"
2475:. Wikimedia Foundation.
2217:. Wikimedia Foundation.
1057:MathQA – a mathematical
852:On 14 January 2013, the
784:data for all Wikipedias.
769:under the management of
19:Not to be confused with
3658:Censorship of Knowledge
2826:. Retrieved 2016-10-06.
2387:(in German). Golem.de.
2060:10.1145/2872427.2874809
1275:10.1145/3543873.3585579
1196:29 October 2012 at the
1052:artificial intelligence
946:
409:, which represents his
3854:Wikimedian of the Year
3538:Hampton Lintorn-Catlin
3242:Wikidata Query Builder
2075:Cite journal requires
1923:Cite journal requires
1577:10.5281/zenodo.1402520
978:in favor of Wikidata.
833:
828:The "Edit links" link
817:
731:
670:
606:
550:
485:Sir Arthur Conan Doyle
468:
459:Three statements from
432:
335:
279:collaboratively edited
260:; 11 years ago
48:relies excessively on
3302:Open-notebook science
1241:grafana.wikimedia.org
1044:frame semantic parser
1042:originally started a
990:articles, 34% of all
941:Wikimedia Deutschland
827:
809:
767:Wikimedia Deutschland
729:
665:
600:
548:
458:
428:
355:1988 Summer Olympics
344:persistent identifier
331:
3869:Google and Knowledge
3790:WikiConference India
3450:Wikimedia Foundation
2580:Commons:Village pump
2442:Commons:Village pump
1871:"Version – Wikidata"
1432:openpreservation.org
1269:. pp. 615–624.
1116:Wikimedia Enterprise
986:' pages, 93% of all
918:Wikimedia Foundation
310:semi-structured data
287:Wikimedia Foundation
258:29 October 2012
206:Wikimedia Foundation
2911:on 15 November 2018
2765:lists.wikimedia.org
2626:10.7554/ELIFE.52614
2473:Wikimedia Meta-Wiki
2438:"Wikidata is Here!"
2243:(1 November 2014).
2000:10.1093/llc/fqac083
1847:. 15 January 2019.
969:Open Data Institute
854:Hungarian Knowledge
801:
739:Freebase (database)
667:Human entity schema
568:. For example, the
398:, which represents
215:Wikimedia community
139:
3920:Community websites
3905:Wikimedia projects
3848:Knowledge Monument
3738:Wikimedia movement
3720:Abstract Knowledge
3653:List of Wikipedias
3497:Dariusz Jemielniak
3492:Lisa Seitz-Gruwell
3362:Open data projects
2811:query.wikidata.org
2679:query.wikidata.org
2532:on 1 January 2014.
2467:Pintscher, Lydia.
2161:meta.wikimedia.org
1106:Semantic MediaWiki
1091:Abstract Knowledge
1059:question answering
1016:virtual assistants
834:
818:
800:
732:
677:" with the value "
671:
607:
551:
469:
433:
336:
197:Multiple languages
137:
28:Knowledge:Wikidata
3910:Lexical databases
3882:
3881:
3670:Wikimedia Commons
3631:
3630:
3553:Florence Devouard
3502:Rebecca MacKinnon
3416:
3415:
3297:Open science data
2893:on 20 March 2019.
2869:on 24 March 2016.
2413:. 29 March 2013.
2262:978-1-4214-1550-5
2157:"Wikidata – Meta"
2040:978-3-319-70406-7
1797:978-3-030-21347-3
1755:978-3-319-11963-2
1678:979-10-95546-36-8
1613:978-3-030-32326-4
1545:978-0-19-977281-0
1480:978-3-319-98931-0
1000:Wikimedia Commons
866:English Knowledge
838:
837:
601:Wikidata Klingon
587:
573:
559:
523:
520:official website
506:
499:
492:
465:Wikimedia Commons
411:self-titled album
407:
396:
386:
379:
372:
365:
358:
272:
271:
194:Available in
133:
132:
125:
107:
3942:
3915:Online databases
3900:Knowledge graphs
3859:Tides Foundation
3824:Knowledge Engine
3593:Patricio Lorente
3558:Oscar van Dillen
3517:Esra'a Al Shafei
3487:Maryana Iskander
3461:
3460:
3443:
3436:
3429:
3420:
3419:
3271:
3264:
3257:
3248:
3247:
3228:
3223:
3222:
3220:Official website
3193:
3192:
3169:
3145:
3144:
3116:
3110:
3096:
3090:
3081:
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3074:
3073:
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3014:
3012:
2987:
2981:
2980:
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2976:
2957:
2951:
2950:
2948:
2946:
2935:www.wikidata.org
2927:
2921:
2920:
2918:
2916:
2907:. Archived from
2901:
2895:
2894:
2877:
2871:
2870:
2865:. Archived from
2859:
2853:
2852:
2850:
2848:
2833:
2827:
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2815:
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2803:
2797:
2788:
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2757:
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2750:
2748:
2746:
2735:www.wikidata.org
2727:
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2153:
2147:
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2122:
2116:
2115:
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2111:
2100:Business Insider
2091:
2085:
2084:
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2073:
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2020:
2011:
2005:
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1800:
1789:
1778:The Semantic Web
1772:
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1710:
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1692:
1683:
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1638:www.wikidata.org
1630:
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1371:www.wikidata.org
1363:
1357:
1356:
1354:
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1341:www.wikidata.org
1333:
1327:
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1324:
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1311:www.wikidata.org
1303:
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1175:
1173:
1157:
1151:
1150:
1145:
1143:
1132:
1085:
1080:
1079:
1031:LibreOffice Calc
1018:such as Apple's
951:The bars on the
895:arbitrary access
802:
799:
699:Shape Expression
585:
571:
557:
521:
504:
497:
490:
475:, which match a
405:
394:
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3878:
3828:
3726:
3627:
3598:Katherine Maher
3526:
3475:
3452:
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3417:
3412:
3393:Open government
3373:
3357:
3306:
3280:
3275:
3218:
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3213:
3212:
3194:
3190:
3185:
3154:
3152:Further reading
3149:
3148:
3117:
3113:
3107:Wayback Machine
3097:
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2018:
2012:
2008:
1979:
1975:
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1209:
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1198:Wayback Machine
1188:
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1171:
1169:
1158:
1154:
1141:
1139:
1138:. 25 April 2013
1134:
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1083:Internet portal
1081:
1074:
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1011:
965:
949:
914:
879:
811:
810:
798:
796:Initial rollout
771:Lydia Pintscher
747:
724:
660:
654:
627:lexicographical
595:
556:subproperty of
543:
501:under the item
494:with the value
473:key–value pairs
453:
430:
429:
423:
348:Denny Vrandečić
334:
326:
318:semantic triple
283:knowledge graph
264:
262:
259:
223:
189:
173:
166:
165:
164:
155:
129:
118:
112:
109:
66:
64:
58:
54:primary sources
42:
31:
24:
17:
12:
11:
5:
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3650:
3639:
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3633:
3632:
3629:
3628:
3626:
3625:
3620:
3615:
3613:MarĂa Sefidari
3610:
3605:
3600:
3595:
3590:
3585:
3580:
3578:Aaron Halfaker
3575:
3570:
3568:Arnnon Geshuri
3565:
3560:
3555:
3550:
3548:Bishakha Datta
3545:
3540:
3534:
3532:
3528:
3527:
3525:
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3519:
3514:
3509:
3507:Raju Narisetti
3504:
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3477:
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3465:
3458:
3454:
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3446:
3445:
3438:
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3423:
3414:
3413:
3401:Open knowledge
3389:Open education
3378:
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3184:
3183:External links
3181:
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3147:
3146:
3127:(3): 250–268.
3111:
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2896:
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2854:
2839:13 July 2012.
2828:
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2241:Leitch, Thomas
2232:
2205:
2194:(Mailing list)
2178:
2148:
2117:
2086:
2077:|journal=
2046:
2039:
2006:
1993:(2): 852–874.
1973:
1934:
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1055:
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1027:
1010:
1007:
998:', and 27% of
994:', 32% of all
964:
961:
948:
945:
934:graph database
913:
910:
878:
875:
836:
835:
821:
819:
797:
794:
793:
792:
785:
778:
746:
743:
723:
720:
695:place of death
691:"date of death
683:place of birth
659:
658:Entity Schemas
656:
594:
591:
542:
539:
452:
449:
448:
447:
444:
422:
419:
404:Elvis Presley
393:Elvis Presley
376:Elvis Presley
338:Wikidata is a
332:
325:
322:
285:hosted by the
270:
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180:Knowledge base
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