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Denny Vrandečić

@vrandecic.bsky.social
373 followers 353 following 69 posts

Husband. Dad. Abstract Wikipedia at WMF. Founder Wikidata. Previously: ontologist at Google, Wikimedia Trustee, RPG author. Q18618629. Views mine.

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Denny Vrandečić @vrandecic.bsky.social · 17/07/2026
Elon Musk's SpaceX has become only the fifth, and by far the fastest company to ever lose more than one trillion dollars in market capitalization. #spcx #musk #spacex #finance $spcx
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Denny Vrandečić @vrandecic.bsky.social · 13/11/2025
"Doom scrolling" heißt auf Deutsch Dummscrollen, and I think that's beautiful. #linguistics #translation #engdeu
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Sarah Rajtmajer @srajtmajer.bsky.social · 04/11/2025
@vrandecic.bsky.social founder of Wikidata shares the history of Wikipedia and Semantic Web. @iswc-conf.bsky.social This example from early days a nod to his beautiful HR
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Wikimedia Foundation @wikimediafoundation.org · 29/10/2025
Wikidata has been recognized as a digital public good by the Digital Public Goods Alliance (DPGA) 🎉 Learn how Wikidata, which houses over 1.6 billion facts, advances education, innovation, and public institutions ➡️ wikimediafoundation.org/news/2025/10...
Ilse Falls in the Harz National Park, Germany. Text says: Wikidata is now the second Wikimedia project recognized as a digital public good.
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Carl T. Bergstrom @carlbergstrom.com · 16/09/2025
"it is essential that LLMs allow their mediating function to prevail over unfounded claims of authority, and develop an ethic of self-denial, consciously sought vulnerability, and service."
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Denny Vrandečić @vrandecic.bsky.social · 15/09/2025
A great article on Wikipedia and some of the big problems it is facing these days, also within the context of former events. If you hear about Wikipedia being biased, this article offers a great discussion about that. www.theverge.com/cs/features/...
theverge.com
Wikipedia is under attack — and how it can survive
The site’s volunteers face threats from Trump, billionaires, and AI.
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Denny Vrandečić @vrandecic.bsky.social · 11/09/2025
Imagine a world in which everyone can share in the sum of all knowledge. I am thankful to the Wikimedia Movement for this amazing vision, and to be able to work on this. And thankful to the MacArthur Foundation for choosing us as one of the finalists for their incredible 100&Change grant.
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Hannah Shelley, MLIS (Metadata, Lattes & Impostor Syndrome) @hannahshelley.site · 04/04/2025
Entering my "academic publishing is broken, so why don't we all just edit Wikipedia" era
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rahaeli @rahaeli.bsky.social · 09/05/2025
I am only 35 minutes into watching this but the things he has been saying for the last five minutes are such a stinging rebuke to the entire USCCB that I am now even more certain that schism that's been brewing for a while will happen in the next decade
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Denny Vrandečić @vrandecic.bsky.social · 08/05/2025
Had a wonderful conversation with Larry, talking about Abstract Wikipedia, Wikidata, knowledge, and language barriers. Larry, thank you for having me over!
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Denny Vrandečić @vrandecic.bsky.social · 07/05/2025
It seems that chatting with AIs can either cause or trigger psychotic episodes Please be careful. If you're using AI frequently, I suggest to tell someone you trust, ask them to keep an eye on you, and even allow them to access your chat log. www.rollingstone.com/culture/cult...
rollingstone.com
People Are Losing Loved Ones to AI-Fueled Spiritual Fantasies
Marriages and families are falling apart as people are sucked into fantasy worlds of spiritual prophecy by AI tools like OpenAI's ChatGPT
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Denny Vrandečić @vrandecic.bsky.social · 30/04/2025
Abstract Wikipedia was selected as a finalist for the MacArthur Foundation's 100&Change competition. diff.wikimedia.org/2025/04/30/a...
diff.wikimedia.org
Abstract Wikipedia is a 100&Change finalist
Wikimedia’s vision is a world in which everyone can share in the sum of all knowledge. And yet, some of the biggest challenges towards realizing this goal are the barriers that exist between our 30…
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Denny Vrandečić @vrandecic.bsky.social · 14/04/2025
On the latest episode of "Between the Brackets", Yaron Koren hosts me for a chat about Wikifunctions, Abstract Wikipedia, Wikidata, AI, and much more. I hope you enjoy the episode. Thank you, Yaron, for hosting! betweenthebrackets.libsyn.com/episode-180-...
betweenthebrackets.libsyn.com
Between the Brackets: a MediaWiki Podcast: Episode 180: Denny Vrandečić
🕑 2 hours 6 minutes Denny Vrandečić is the Head of Special Projects at the Wikimedia Foundation, as well as a visiting professor at King's College London. He is the is main creator of the Wikimedia si...
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Denny Vrandečić @vrandecic.bsky.social · 11/04/2025
"Knowledge in the Age of AI" - recording of a talk at King's College London youtu.be/2oFrs86xtco?...
youtu.be
Dr Denny Vrandečić - Knowledge in the Age of AI
YouTube video by King's NMES
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Denny Vrandečić @vrandecic.bsky.social · 11/04/2025
I am honored to be a visiting professor at King's College London. Thank you for the opportunity, and I'm looking forward to our work together!
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Denny Vrandečić @vrandecic.bsky.social · 25/03/2025
Today is the 30th anniversary of launching the first wiki by Ward Cunningham. A page that anyone could edit. Generally seen as a bad idea. Originally to support software design patterns, wikis were used for many other goals (even an encyclopedia!) Thank you, Ward! wikiindex.org/w/30th_WikiB...
wikiindex.org
30th WikiBirthday
March 25, 2025 is the 30th birthday of the the WikiWikiWeb.
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Denny Vrandečić @vrandecic.bsky.social · 24/03/2025
"My feathered friend, your cage must drive you to rage sometimes… To think that you have aged staring at nothing but beige walls She says "you know, our lives aren't so different as you would believe. All are in prisons of some kind, tethered by the stories that we weave." Halie Loren: Yellow Bird
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Open Data Institute @odihq.bsky.social · 17/03/2025
Listen to experts @vrandecic.bsky.social and @esimperl.bsky.social as they discuss large language models, knowledge graphs, and how we can use these novel and complementing technologies. #Data #AI
buff.ly
DCAI Webinar#4
Knowledge representation in the age of large language models
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Denny Vrandečić @vrandecic.bsky.social · 14/03/2025
Same week: OpenAI announces model "good at creative writing" OpenAI says it needs for national security copyrighted texts for free and without restrictions Project Stargate involving OpenAI was announced with $500 billion Entire US book market revenue is $28 billion OpenAI could pay.
arstechnica.com
OpenAI declares AI race “over” if training on copyrighted works isn’t fair use
National security hinges on unfettered access to AI training data, OpenAI says.
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Elena Simperl @elenasimperl.bsky.social · 10/03/2025
Great talk by @vrandecic.bsky.social at the #Informatics departmental seminar today on #knowledge in the age of #ai @kingsnmes.bsky.social
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Denny Vrandečić @vrandecic.bsky.social · 27/02/2025
Wikifunctions - Wikipedia's newest sister project Wikifunctions is a collaboratively maintained library of functions that anyone can use and contribute to. This talk will introduce the project. Where: Newspeak.House, London When: 10 March @ 7pm. lu.ma/4rtmw5ch
lu.ma
Wikifunctions - Wikipedia's newest sister project · Luma
The Wikimedia Foundation has launched a new project, Wikifunctions, a collaboratively maintained library of functions that anyone can use and contribute to. Dr…
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depths of wikipedia @depthsofwikipedia.bsky.social · 26/02/2025
wikimedia commons
media in category "heart shaped potatoes". 15 homemade photos from commons
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Denny Vrandečić @vrandecic.bsky.social · 24/02/2025
In meinem Wahlkreis gewann die Grüne Kandidatin (vorläufig) mit 16 Stimmen Vorsprung vor der Kandidatin der CDU. 16 Stimmen! Jede Stimme zählt. www.bundeswahlleiterin.de/bundestagswa...
bundeswahlleiterin.de
Ergebnisse Stuttgart I - Die Bundeswahlleiterin
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Denny Vrandečić @vrandecic.bsky.social · 24/02/2025
Roberta Flack really saw the potential in the song "Killing me softly", turning it into a much better song. There is a great episode on "Strong Songs" about this. pca.st/episode/19ba... RIP Roberta Flack.
pca.st
"Killing Me Softly With His Song," as sung by Lauryn Hill, Roberta Flack, & Lori Lieberman - Strong Songs
Three different singers; one classic song.
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Denny Vrandečić @vrandecic.bsky.social · 23/02/2025
A̱ẢÁ ȀAA̰ĂÁÂ ẢÂ A̱ÁÄĀÃA̧A̰ĂAÂA̱ ÃẢÂA̱ ÂẢA̧A̰Ā ẢA̱ÁAĂ A̋ÁĂAÄA̮ÁÂ! ȺȀAÂȺẢA̋ A̯ȂÅȺÁÂĀ ȦÁẢ A̱ÁȂ AA̮A̱ ẢÃĀ ÃA̧A̰ÁẢÃÃÁ. ÁĂÁA̧ĀẢÅÂ ȂÁÃÄĂĀÃ ẢÂ A̋ÁȂǍAÂA̦ ȀÁȂÁ A̮AȂ A̮ȂÅǍ ẢA̱ÁAĂ
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Denny Vrandečić @vrandecic.bsky.social · 22/02/2025
Graffiti "Würde unantastbar"
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Denny Vrandečić @vrandecic.bsky.social · 21/02/2025
Wikifunctions has you covered to translate to and from Scream: * To Scream www.wikifunctions.org/view/en/Z22725 * From Scream: www.wikifunctions.org/view/en/Z22728
wikifunctions.org
to Scream Cipher - Wikifunctions
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Denny Vrandečić @vrandecic.bsky.social · 17/02/2025
Brilliant write-up by Luis Villa from a 2016 talk (almost ten years!): a reflection on freedom in free software. Instead of just saying "everyone can use this code", let's ask "can they really?" -- adopting the capability model towards Free Software and Open Source. lu.is/2016/03/free...
lu.is
Free as in … ? My LibrePlanet 2016 talk
Below is the talk I gave at LibrePlanet 2016. The tl;dr version: Learning how political philosophy has evolved since the 1670s shows that the FSF’s four freedoms are good, but not sufficient.…
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Denny Vrandečić @vrandecic.bsky.social · 13/02/2025
I am honored to present at King's College. If you have questions or ideas about the topic of Knowledge in the Age of AI, feel free to leave them here! I'll take a look as I refine the talk. I would be very happy to see you in London, if you're around, or for you to enjoy the stream or recording.
eventbrite.co.uk
Knowledge in the Age of AI
Join us for our upcoming Informatics departmental seminar with Dr Denny Vrandečić.
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Denny Vrandečić @vrandecic.bsky.social · 07/02/2025
Beavers have built a dam where local authorities were planning to build a dam, which would have cost 1.2 million Euro. It took two days and had a bigger scope and better results than planned. Planning was going for several years. Thank you, nature! www.goodnewsnetwork.org/while-a-czec...
goodnewsnetwork.org
While Czech Region is Busy Planning Hydro-Project, Beavers Do it For Them–Saving Millions
Ecologists inspecting the dams said they will last a long time and do the jobs of draining the area and offering good conditions for wildlife.
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Denny Vrandečić @vrandecic.bsky.social · 07/02/2025
Hidden Figures
NSA Hall of Fame. We see two portraits being covered with brown paper.
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Stephen Harrison @stephenharrison.com · 05/02/2025
I wrote for Slate about how a conservative think tank plans to "identify and target" Wikipedia editors who it claims are abusing their position—a dangerous escalation that shifts the fight from debating edits to going after the editors themselves. slate.com/technology/2...
slate.com
A Powerful Conservative Think Tank Is Targeting One of the Last Good Things on the Internet
The Heritage Foundation plans to “identify and target” Wikipedia editors it accuses of antisemitism.
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Alexandria Ocasio-Cortez @aoc.bsky.social · 31/01/2025
I honestly believe our most powerful position in a toxic time that feeds on cynicism, apathy,& despair is to genuinely care and act for a better world. Cynicism is our enemy. We should check it, incl. on the left. It’s not intellectually superior. It’s the virus they’re trying to infect us with. NO
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Denny Vrandečić @vrandecic.bsky.social · 20/01/2025
The good thing about PhD level AI is that it still doesn't need any common sense.
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Denny Vrandečić @vrandecic.bsky.social · 15/01/2025
How to combine LLMs, Knowledge Graphs and Search Engines? What are the strengths and limitations? Aidan Hogan @aidhog.bsky.social , Luna Dong, Gerhard Weikum, and I were invited to talks about this topic and now wrote a paper together to capture some of the ideas. arxiv.org/abs/2501.06699
Table 1 from the referenced paper
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Denny Vrandečić @vrandecic.bsky.social · 14/01/2025
What do I think about large language models? Let's use two quotes: "Our languages were made for telling stories, not for representing ideas very accurately." - Alan Kay "All models are wrong, but some are useful." - George Box
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Denny Vrandečić @vrandecic.bsky.social · 12/01/2025
Logic is not a necessary condition for intelligence. I think it's the other way around. Language was necessary for logic, and intelligence was necessary for language. There is no logic in the world to begin with. It's something intelligence created.
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Slippy @damnslippy.slippy.me · 11/01/2025
Sincerely delighted to discover, 45 minutes into this nearly-wordless three-hour documentary about French monks who take vows of silence, that among the reasons they *can* talk is "to make sure the monastery cats know when it's mealtime by making little kitty-calling noises at them."
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Denny Vrandečić @vrandecic.bsky.social · 10/01/2025
@oliverstorypunk.bsky.social @hadmar.bsky.social Ne, privat war das nicht
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Denny Vrandečić @vrandecic.bsky.social · 10/01/2025
One of the best recent publications I read about Wikipedia: published in AMS, for and by mathematicians, insightful for the general public and quite funny Princ-wiki-a Mathematica: Wikipedia Editing and Mathematics by David Eppstein, Joel Brewster Lewis & Russ Woodroofe www.ams.org/journals/not...
ams.org
American Mathematical Society
Advancing research. Creating connections.
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Denny Vrandečić @vrandecic.bsky.social · 08/01/2025
I made a meme #Wikipedia
Comic of a board room meeting.
Panel 1: boss: "Wikipedia is writing bad things about us"
Panel 2, board members suggestions:
Board member 1: "Tell people to stop donating to Wikipedia"
Board member 2: "Doxx and attack Wikipedia volunteers"
Board member 3: "Stop doing bad things?"
Panel 3 and 4: boss looks angry at Board member 3
Panel 5: Board member 3 is been thrown out of the window
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Denny Vrandečić @vrandecic.bsky.social · 05/01/2025
TIL: After the Rolling Stones published their first song, they had trouble deciding what to record next. The producer left the session and bumped into John Lennon and Paul McCartney. He told, and they agreed to come along and help, giving the Rolling Stones their second hit, "I Want To Be Your Man".
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Denny Vrandečić @vrandecic.bsky.social · 03/01/2025
TIL: One reason why the Amazon rainforest is growing so vividly is that Sahara sand is being carried over the Atlantic, and falls as fertilizing rain into the Amazon basin. More than 20,000 tons of phosphorus fly over the ocean each year, picked up from Africa and deposited in South America.
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Denny Vrandečić @vrandecic.bsky.social · 01/01/2025
Happy New Year
Sum of n from 1 to 9 of n cubed
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Denny Vrandečić @vrandecic.bsky.social · 21/12/2024
It is known that if you want to bury some news, publish it on a Friday. Especially, on the Friday before Christmas. I'm not sure what kind of narrative contains a major breakthrough on a difficult AI challenge that was announced on a Friday before Christmas. arcprize.org/blog/oai-o3-...
arcprize.org
OpenAI o3 Breakthrough High Score on ARC-AGI-Pub
OpenAI o3 scores 75.7% on ARC-AGI public leaderboard.
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Denny Vrandečić @vrandecic.bsky.social · 18/12/2024
AI researchers are working hard on fixing that situation by publishing many many more papers.
Headline: The AI revolution is running out of data. What can researchers do? 
Source: Nature
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Denny Vrandečić @vrandecic.bsky.social · 10/12/2024
Cory Doctorow wrote a short story in 2018 about a man who committed violence against health insurance executives. In the post linked below he struggles with rage as he describes his thoughts following the murder of the healthcare instance CEO in New York. pluralistic.net/2024/12/09/r...
pluralistic.net
Pluralistic: Predicting the present (09 Dec 2024) – Pluralistic: Daily links from Cory Doctorow
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Corey Atad @coreyatad.com · 05/12/2024
Willem Dafoe speaking truth in this interview with @mattzollerseitz.bsky.social www.vulture.com/article/will...
question: I feel like the relationship of the audience to movies has changed in the past ten or 15 years. They expect the movie to come to them.

answer: Absolutely. They’d rather go home and turn on their TV and see a film that way. And let’s face it, a certain kind of corruption comes in because people go home and they shop around on these streaming platforms. There’s some good things about the platforms. They create a lot of movies. They create a lot of jobs. But there’s so many distractions that you can’t enter the stuff. People watch five minutes of something and they say, “I’m not really into it” and they go to another thing. “I’m not really into it.” Then another thing. “I’m not really into it.” Then they go to bed.

If you don’t put in the effort, you’re not going to receive much. And the discourse gets lowered, and everything gets a little more dumbed down and then that’s when the ruffians come in, and they’re the ones with energy and stupidity and then they can crush all the thoughtful people. That’s not good for culture, and that’s not good for humanity. We see the results of that all the time.
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Gretchen McCulloch @gretchenmcculloch.com · 05/12/2024
I've been playing this deadpan German linguistics bop on repeat for the past 12 hours and I'm delighted to report that it's on youtube now!! 🎶 More, more, more morphology 🎶
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Remis Ramos @remisramos.bsky.social · 01/12/2024
I’ve read about the lapel buttonhole (there to hold flowers or decorative pins) but I’ve been unable to figure out what did Wittgenstein used to carry there and why he needed it secured to his jacket in that way. Doesn’t look like a fountain pen to me. Any pointers?
Wittgenstein jacket with an object attached to it
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