User:Denny

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User language
hr-N Ovaj suradnik govori hrvatski kao materinski jezik.
de-N Dieser Benutzer spricht Deutsch als Muttersprache.
en-5 This user has professional knowledge of English.
sr-3 Овај корисник разуме српски / srpski језик на напредном нивоу.
bs-3 Ovaj korisnik ima napredno znanje bosanskog jezika.
sh-3 Ovaj korisnik ima napredno poznavanje srpskohrvatskog jezika.

Овај корисник има напредно познавање српскохрватског језика.

fr-1 Cet utilisateur dispose de connaissances de base en français.
uz-0 Bu foydalanuvchi oʻzbek tilini umuman bilmaydi.
Users by language

For a slightly more international version, check out my Wikidata user page, where you can switch the display language.

I used to have a second user account while I was working at Wikimedia Deutschland: User:Denny Vrandečić (WMDE). I am not using that one anymore.

Local user pages


General bio

I am Croatian (my parents are from Brač, the most beautiful place in the world). I went to the Geschwister-Scholl-Gymnasium, studied computer science and philosophy at the University of Stuttgart, got my PhD at the Karlsruhe Institute of Technology, where my research area have been Ontologies and the Semantic Web. I have been doing research at the Laboratory of Applied Ontology at the CNR and at the Information Sciences Institute at USC. After that I joined Wikimedia Deutschland to start the Wikidata project. Today I work at Google.

I also have written texts for the German fantasy role playing game Das Schwarze Auge.

I lived on the island of Brač, in Stuttgart, Rome, Karlsruhe, Los Angeles, Berlin, and now San Francisco.

Wikimedia bio

The following text was part of a first draft for my candidacy statement for the Board of Trustees elections. So please bear with me that it sounds a bit self-aggrandizing.

I am a Wikipedian since 2003. In 2004, I became the first administrator and bureaucrat of the Croatian Wikipedia, when there was no community yet. At the first Wikimania in 2005, my colleagues and I presented the idea of including structured data in Wikipedia. In the following, Markus Krötzsch and I created the Semantic MediaWiki extension to demonstrate the power of the idea. Semantic MediaWiki became one of the most versatile extensions, and remains a unique advantage enabling many use cases in organizations as diverse as Stanford, NASA, the UN, WHO, FSF’s Free Software Directory, translatewiki.net, the Metropolitan Museum of Art, or on a kids’ wiki about Yu-Gi-Oh!

I gained my PhD at KIT from 2004-2010, for which I did research, among other things, on the Wikimedia projects. In 2008 I was co-chair of the research track of Wikimania. In 2009/2010 I co-wrote the proposal for the EU project RENDER (total budget 4.4 Million Euro), the first EU research project in which Wikimedia Deutschland participated.

In 2010/11, I wrote the Wikidata proposal with input from numerous community members, the Wikimedia Foundation and Wikimedia Deutschland, and external advisors. In the following, I secured more than 2 Million USD in donations to fund the development of Wikidata, and for Wikimedia Deutschland, hired and led the team which would start in 2012 with the development and eventual deployment of Wikidata. Wikidata has become the single biggest sustainable contributor of new members to the Wikimedia communities in the past decade, and is today the fourth largest Wikimedia project community. It is also easily the most impactful technical change in many years, and yet it was introduced with an unusual small amount of backlash and on-wiki discussions. Wikidata has removed more than 400 Million lines of Wikitext so far - content, that has not to be maintained anymore, without loss of quality or coverage.

I joined Google in 2013, and since then I have helped with the release of several datasets from Google under a CC0 license, and most importantly supported the ongoing shutdown of Freebase and the release of Freebase’s data for the benefit of the Wikidata project. This summer I will host a Wikidata editor at Google to make sure that as much data as possible is being offered to Wikidata.