The recording of my @iswc_conf keynote is available online:

Wikipedia and the Semantic Web -- 20 years of co-development, and the future

Drawing on the roots of @wikipedia and the Semantic Web, how they influenced each other during the last two decades, leading to
@wikidata and peeking forward to @wikifunctions and Abstract Wikipedia.

#semanticWeb #abstractWikipedia #knowledge #knowledgeGraphs #knowledgerepresentation #wikipedia #wikidata #wikifunctions

https://videolectures.net/videos/iswc2025_nara_vrandecic_wikipedia_future

Wikipedia and the Semantic Web: Celebrating 20 Years of Co-Development and the Future

In 2005, the very first papers proposed integrating Semantic Web technologies in the nascent Wikipedia ecosystem. This wasn’t just a convergence; it ignited two decades of mutual inspiration and benefit. From this crucible, the work in semantic wikis drew inspiration. Semantic MediaWiki, particularly, which found global adoption at Google, Microsoft, NASA, and beyond. Wikipedia became the bedrock for pioneering knowledge graphs, including DBpedia, Freebase, and Yago. These pivotal experiences directly fueled the development of Knowledge Graph, a term that has since found ubiquitous adoption, and, critically, Wikidata, a project that has become an indispensable, living component of Wikipedia itself. With over half a million global contributors, Wikidata stands as the world’s most-edited wiki, powering one of, if not the, most widely-used public SPARQL endpoint. Its software, Wikibase, has spawned a federation of knowledge graphs, serving diverse domains from museums to language preservation. Furthermore, Wikidata’s evolution into lexicographic data (inspired by ontologies such as OntoLex and Lemon) laid the groundwork for projects such as Wikifunctions and Abstract Wikipedia, a vision first unveiled right here at ISWC 2018 and now an official Wikimedia Foundation project. This takes us to the present and future: Abstract Wikipedia collaboratively confronts the inherent expressivity gap in knowledge graphs, while foundational role in training and the current use of language models can not be overstated. This creates a tantalising confluence of large language models and knowledge graphs, hinting at profound opportunities - and critical challenges -for Wikipedia, the Web, and beyond. As this rich history promises many more years of co-development and mutual inspiration, we will conclude with a forward-looking sketch of open research questions and exciting upcoming opportunities.

Last month, I was in Vienna to talk about #Wikipedia and AI (and #Wikidata, #AbstractWikipedia, and the Wikidata Embedding Project). It took me some time, but I have now written down most of my talk there in English. Enjoy the story of the owl 🦉 and the bat🦇

https://blog.johl.io/the-owl-and-the-bat/

The Owl and the Bat

Knowledge Production on Wikimedia Projects with Artificial Intelligence (whatever that means) There’s no doubt that what we refer to as “Artificial Intelligence” changes knowledge production. English Wikipedia has recently adopted a policy which prohibits the use of Large Language Models to generate or rewrite article content. German Wikipedia started a Request for Comment discussion on a comparable policy a little bit before that. We typically don’t see everything AI in 2026 as a field in computer science research, but in a context of exploitative business practices that – among other effects on the real world —put considerable strains on Wikimedia’s infrastructure and thus the Knowledge Commons.

My heart is a Turing machine: A blog by Jens Ohlig

#AbstractWikipedia, the project that creates articles from function calls in #Wikifunctions with data from #wikidata in (eventually) any human language is getting to a point where some impressive progress is visible.

Have a look: https://www.wikifunctions.org/wiki/Wikifunctions:Status_updates/2026-02-20

Wikifunctions:Status updates/2026-02-20 - Wikifunctions

Abstract Wikipedia Newsletter 236

A sneak preview of Abstract Wikipedia
with screenshots of the current prototype

Furthermore:
* Recent Changes in the software
* Fresh Functions weekly: 21 new functions

https://www.wikifunctions.org/wiki/Wikifunctions:Status_updates/2026-02-20

#wikifunctions #AbstractWikipedia #wikipedia

Happy birthday @wikipedia

25 years of Wikipedia -- a decades-long story of language communities growing together

https://www.wikifunctions.org/wiki/Wikifunctions:Status_updates/2026-01-15

#AbstractWikipedia #Wikipedia #Wikipedia25 #WikipediaDay

Abstract Wikipedia Newsletter 231

* We wish you a happy new Gregorian year!
* Newsletter taking a break
* Next Volunteer’s Corner on 9 February 2026
* Template to Wikifunctions on Wikipedia
* Recent Changes in the software
* Fresh Functions weekly: 51 new Functions

https://www.wikifunctions.org/wiki/Wikifunctions:Status_updates/2025-12-18

#wikifunctions #AbstractWikipedia #Wikipedia

Wikifunctions:Status updates/2025-12-18 - Wikifunctions

Abstract Wikipedia Newsletter Nr. 229

* And the name is Abstract Wikipedia
* Demo video for two new features: shareable function calls and custom statement component
* Recent Changes in the software
* Wikidata components handling edge-cases better
* New options for retrieving Wikidata entities
* Recording of December Volunteers’ Corner
* Fresh Functions weekly: 58 new Functions

#wikifunctions #abstractwikipedia

https://www.wikifunctions.org/wiki/Wikifunctions:Status_updates/2025-12-04

Wikifunctions:Status updates/2025-12-04 - Wikifunctions

Enpä arvannut, mitä hyötyä Edouard Louis'n tuotannon lukemisesta olisi.*

Tehdessään huikeaa luokkanousua hän alkoi 17-vuotiaana lukea ensimmäistä kertaa kirjoja. Eikä vain mitä tahansa kirjoja, vaan klassikkoja, ja varsin hurjalla tahdilla, kirjan päivässä. 21-vuotiaana hän julkaisi esikoisteoksensa, josta tuli maailmanmenestys.

Hän ei ymmärtänyt kirjoista juuri mitään, mutta jatkoi silti sitkeästi. Pikku hiljaa hän alkoi saada niistä enemmän irti, ja uuden kirjan lukeminen auttoi ehkä ymmärtämään aiempiakin.

Olen nyt vähän samanlaisessa tilanteessa. Osallistun #wikidatacon'iin ja ymmärrän kuulemastani varsin vähän, ehkä kolmanneksen. Minua huvittaa, että eilen konffan alussa sanottiin, että tapahtuma sopii myös ummikoille. En pidä itseäni sellaisena: olen tehnyt #Wikidata'an satoja muokkauksia ja osallistunut useisiin koulutuksiin, viimeksi viime syksynä, jolloin olin viiden tunnin koulutuksessa.

Siitä huolimatta mulle on nyt parissa päivässä avautunut ihan uusia ulottuvuuksia niin Wikidatasta kuin muistakin #Wikimedia-projekteista, joilla on siihen rajapinta.

Jotain asian vaikeudesta kertoo ehkä myös osallistujien määrä. Siinä missä Wikimaniaan osallistuu ehkä noin 1500 ihmistä koko maailmasta, tässä konffassa meitä on noin 30-40. Tänään yksi osallistuja kertoi siitä, miten vaikea esimerkiksi #wikifunctions-projektia on ymmärtää, #abstractwikipedia'sta puhumattakaan. Jes, todistetusti en siis ole ainoa, jolla on ollut vaikeuksia pysyä kärryillä. :)

Tähän ikään mennessä olen kuitenkin oppinut kärsivällisyyttä, minun ei tarvitse ymmärtää kaikkea. Olen myös kiitollinen siitä, että tämä joka toinen vuosi järjestettävä konffa järjestään kolmena päivänä, noin 5 tuntia päivässä. Kun asia on näin vaikeaa, on hyvä, että sulattelulle jätetään aikaa. (On myös ollut hienoa nähdä esiintyjien joukossa useita naisia.)

*Sain uuden tavan kertoa omista kokemuksistani ihmisille, jotka pitävät Wikipediaakin vaikeana, eivätkä tiedä mitään yhteisömme muista projekteista.

We are kicking off a wiki that will contain language-independent representations for articles, so that they can fill gaps in existing Wikipedias. We need a name for this wiki!

Wikipedians can suggest and vote on the currently 84 proposals until November 3

Current top contenders
* Wikicore
* Abstract Wikipedia
* Multilingual Wikipedia
* Proto-Wiki
* Wikiabstracts
* Wikiblueprint
* Wikipedia Blueprint
* Wikibridge

https://meta.wikimedia.org/wiki/Abstract_Wikipedia/Abstract_Wikipedia_naming_contest

#wikipedia #wikimedia #wikifunctions #abstractwikipedia

Abstract Wikipedia/Abstract Wikipedia naming contest - Meta-Wiki

I have started blogging again. The blog is still work in progress, but I wrote a story about #AbstractWikipedia, #Wikifunctions, and monsters feasting on cupcakes.

https://johl.io/blog/the-glass-of-milk-and-the-monsters-feast/

The Glass of Milk and the Monsters’ Feast

We need stories. Stories that we can tell each other or listen to, and that entertain us. We can learn from some stories. Sometimes we don’t fully understand a story, but it remains as an echo, a mood. From this mood, new ideas may arise and the desire to go deeper into the topic. Abstract Wikipedia, Wikidata, and Wikifunctions are not always easy to explain. Wikifunctions is a new project by the Wikimedia Foundation, the organization behind projects that bring Free Knowledge to the world, such as Wikipedia. Abstract Wikipedia is a larger idea that is about producing knowledge from strutured data and functions. Knowledge production from data is a fantastic concept; it’s fabulous. Here’s a fable.

A blog by Jens Ohlig