Daniel Mietchen

Joined 15 November 2012
There are 102,080,533 content pages on Wikidata, of which 97,835,062 are items and 10,013 properties.
Wikidata RDF model
Lexicographic data on Wikidata, and tools around that
Tool for visualizing the contribution history on Wikipedia
Wikidatatrust, a tool for visualizing who contributed to which Wikidata statement

I am a biophysicist (Q14906342) interested in integrating research (Q42240) workflows with the Internet (Q75) — particularly if they relate to medicine (Q11190), Biodiversity (Q47041) or open science (Q309823). My contributions here cover similar topics, with a focus on scholarly publications as sources for statements in Wikidata. My most recent affiliations are Institute for Globally Distributed Open Research and Education (Q55775817), Ronin Institute (Q27207785), Freie Universität Berlin (Q153006), Leibniz Institute of Freshwater Ecology and Inland Fisheries (Q1813732), Fraunhofer Institute for Biomedical Engineering (Q1167435) and University of Virginia (Q213439) — see my ORCID profile for details. I enjoy most of the interactions with the Wikidata community, which sometimes trigger wiki thanks.

For semi-automated or tool-assisted edits, I am experimenting with a separate account over at User:Research Bot.

Wikidata statsEdit

Wikidata statistics
  Number of pages 102,080,533  
  User total 5,452,360  
  Active users list 24,042  
  Administrators 63  
  Users/administrator 382  

Most recently created pagesEdit

The ten most recently created itemsEdit

The ten most recently created propertiesEdit

The ten most recently created lexemesEdit

See also Wikidata:Lexical Masks.

The ten most recently created pages in the Wikidata namespaceEdit

The ten most recently created pages in the Entity schema namespaceEdit

See also Special:NewEntitySchema, a list of schemas and Schema visualization.

Properties I am interested inEdit

Wikidata list-based galleryEdit

As per Wikidata:Database reports/birthday today:

Bengt I. Samuelsson (1934-05-21)

Mengistu Haile Mariam (1937-05-21)
Addis Ababa

Heinz Holliger (1939-05-21)

Mary Robinson (1944-05-21)

Al Franken (1951-05-21)

Mr. T (1952-05-21)

Sergey Shoygu (1955-05-21)

Nick Cassavetes (1959-05-21)
New York City

End of automatically generated list.

See also

Arbitrary accessEdit

Other stuffEdit

Popular pagesEdit

Topic PagesEdit

The PLoS Computational Biology articles serving as the basis for Wikipedia entries should be properly represented at Wikidata, which they are not yet. Dumping the list here for the moment - help is welcome.

These should link to the respective topic items via "main subject".



Wikidata lists


Genome annotation releasesEdit



Interesting papersEdit

Most viewed Wikidata pagesEdit

Wikidata and CommonsEdit

Property constraintsEdit

Properties around topics and research fieldsEdit

QuickStatementsBot and ReinheitsgebotEdit

Yet more to dig intoEdit

Labels, descriptions, aliases per languageEdit

Navel GazerEdit

Related PropertiesEdit

Data DrainerEdit


Bugs to reportEdit

Italics in titles not recognized upon importEdit

See also this discussion and its on-wiki counterpart.

Origin of the problemEdit
Variants of the problemEdit

See also Help:Ranking and Help:Deprecation and usage stats for deprecated rank as well as for preferred rank


The problem may not be apparent from what is currently displayed here, so it is advisable to check the version history for the items in question.

No auto-relinking after merging of lexemes?Edit

Quality control and maintenance for WikiProjects on enwpEdit

Tools galleryEdit

MediaWiki graphs based on Wikidata queryEdit

Multilingual WikipediaEdit

Game to add senses to lexemesEdit

Game to add descriptions to itemsEdit

Learning game based on Wikidata SPARQL queriesEdit

Optimizing SPARQL queriesEdit

Wikidata blameEdit

Template:Compare Wikidata with CSVEdit

The BookEdit

  • shows the first paragraph and first image for a set of articles on the same page, just like in old lexica
  • examples:

Search propertiesEdit

Clickstream data visualizationsEdit

Topic tagging for taxaEdit

Image tagging for worksEdit



Babel user informationEdit

I find the current way of handling this information rather unwieldy, but since it is basically required for editing Wikidata in multiple languages, I'm just pushing it to the bottom of the page, along with some pointers to topics or tools of interest.

Babel user information
 This user uses Scholia.
 This user is a member of
WikiProject Open Access.
 This user is a member of
WikiProject Medicine
 This user is a member of
WikiProject Physics.
 This user is a member of WikiProject Chemistry.
 This user is a member of WikiProject COVID19.
 This user uses QuickStatements.
 This user loves Wikidata.
 This user uses Mix'n'match.
 This user is a member of WikiProject India.
 This user contributes using Firefox.
 This contributor uses Project Jupyter (Q55630549).
Users by language
Babel user information
de-N Dieser Benutzer spricht Deutsch als Muttersprache.
en-4 This user has near native speaker knowledge of English.
fr-4 Cet utilisateur dispose de connaissances proches de la langue maternelle en français.
ru-4 Этот участник владеет русским языком почти как родным.
eo-2 Ĉi tiu uzanto havas meznivelan scion de Esperanto.
es-2 Esta persona tiene un conocimiento intermedio del español.
it-2 Questo utente può contribuire con un livello intermedio in italiano.
la-2 Hic usor lingua Latina mediae difficultatis conferre potest.
nl-2 Deze gebruiker heeft basiskennis van het Nederlands.
sv-2 Den här användaren har medelgoda kunskaper i svenska.
uk-2 Цей користувач володіє українською мовою на середньому рівні.
eo-2 Ĉi tiu uzanto havas meznivelan scion de Esperanto.
af-1 Hierdie gebruiker het basiese kennis van Afrikaans.
ar-1 هذا المستخدم لديه معرفة أساسية بالعربية.
bg-1 Този потребител има основни познания по български език.
ca-1 Aquest usuari té un coneixement bàsic de català.
cs-1 Tento uživatel má základní znalosti češtiny.
da-1 Denne bruger har grundlæggende kendskab til dansk.
el-1 Αυτός ο χρήστης μπορεί να συνεισφέρει σε βασικού επιπέδου Ελληνικά.
fa-1 این کاربر فارسی را در حد مقدماتی می‌فهمد.
ja-1 この利用者は初級日本語ができます。
kk-1 Бұл қатысушы қазақша бастапқы деңгейде меңгереді.
ko-1 이 사용자는 한국어조금 할 수 있습니다.
ky-1 Бул колдонуучу кыргыз тилин башталгыч деңгээлде билет.
nb-1 Denne brukeren har grunnleggende kjennskap til norsk (bokmål).
pl-1 Ten użytkownik posługuje się językiem polskim na poziomie podstawowym.
pt-1 Este utilizador tem um nível básico de português.
ro-1 Acest utilizator poate contribui cu un nivel de bază de română.
sh-1 Ovaj korisnik zna srpskohrvatski na osnovnoj razini.
sk-1 Tento užívateľ má základné znalosti slovenčiny.
sl-1 Uporabnik pozna osnove slovenskega jezika.
sw-1 Mtumiaji huyu ni mwongeaji wa Kiswahili cha kiwango cha Msingi.
tg-1 Ин корбар тоҷикӣро дар сатҳи муқаддамотӣ мефаҳмад.
tr-1 Bu kullanıcı temel düzeyde Türkçe bilir.
uz-1 Bu foydalanuvchi oʻzbek tilini boshlangʻich darajada biladi.
zh-1 这位用户的中文达到初级水平
ee-0 Ezãla sia mese Eʋegbe o.
fi-0 Tämä käyttäjä osaa hyvin vähän tai ei lainkaan suomea.
hu-0 Ez a szerkesztő nem beszéli a magyar nyelvet (vagy csak nagyon nehezen érti meg).
is-0 Þessi notandi talar ekki íslensku (á erfitt með að skilja hana eða kýs að tala hana ekki).
sa-0 एषः सदस्यः संस्कृतेन लेखितुं शक्नोति (अथवा तु बहुकष्टेन ज्ञातुं प्रभवति ।)।
simple-4 This user has near native speaker knowledge of Simple English.
Users by language
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