Petri Ylikoski

@ylikoskip.bsky.social

A philosopher of science interested in too many things. Professor of Sociology (Science and Technology Studies) in University of Helsinki.

I’ve officially resigned as Associate Editor for Frontiers in Systems Neuroscience. It used to be a reputable journal, but became a case study in how forced automation destroys academic integrity. 👇

1. How common is LLM use in scientific publishing, and how does it vary across field, publisher, journal prestige, author demographics etc.? @kylesiler.bsky.social has new paper in PNAS that addresses this question on a massive scale: 7.3 million papers from Elsevier, PLOS, MDPI, and Frontiers.

The diffusion of large language models in published academic articles | PNAS

Large language models (LLMs) are rapidly changing academic research, raising questions of who is adopting these tools and under what conditions. Th...

pnas.org

I also worry about some version of Goodhart's law here. If everyone knows AI will determine if their paper is accepted, they will start to write for AI. And since we all have access to AI, we can iterate until our paper is accepted by AI. And then we have no idea if papers are actually good anymore.

Is social media dying? How much did Twitter change as it became X? Which party now dominates the conversation? Using nationally representative ANES data from 2020 & 2024, I map how the U.S. social media landscape has changed Here are the key take-aways 🧵 Full paper out now in in JQD:DM!

Shifts in U.S. Social Media Use, 2020–2024: Decline, Fragmentation, and Enduring Polarization | Journal of Quantitative Description: Digital Media

journalqd.org

Mine and @pengzell.bsky.social paper "How Robust Are Country Rankings in Educational Mobility?" was published in @sociologicalsci.bsky.social yesterday edu.nl/y7ct3 More details in the future, but for now short explanation of what we did, and the origin story of the paper. [Thread below]

How Robust Are Country Rankings in Educational Mobility?

Article: How Robust Are Country Rankings in Educational Mobility? | Sociological Science | Posted December 11, 2025

doi.org

Problems in deploying digital materials and methods in social research should be understood as—perhaps primarily—challenges in reconciling diverging epistemic conceptions across fields and communities, suggests Juho Pääkkönen in his PhD. Read the lectio praecursoria: rajapinta.co/2025/12/04/l...

Lectio Praecursoria: Credibility-building for social science big data

Problems in deploying new digital materials and methods in social research should be understood as – perhaps primarily – challenges in reconciling diverging epistemic conceptions across fields and …

rajapinta.co

Can AI simulations of human research participants advance cognitive science? In @cp-trendscognsci.bsky.social, @lmesseri.bsky.social & I analyze this vision. We show how “AI Surrogates” entrench practices that limit the generalizability of cognitive science while aspiring to do the opposite. 1/

AI Surrogates and illusions of generalizability in cognitive science

Recent advances in artificial intelligence (AI) have generated enthusiasm for using AI simulations of human research participants to generate new know…

sciencedirect.com

'The study...found that the main driver of increased red tape was university efficiency reforms. It threw doubt on the idea that increasing automation results in real efficiency, and suggested that Australian universities...had recently shifted towards stronger central executive management.' 1/2

Research Professional News@resprofnews.bsky.social · 12mo ago

University efficiency drives may have opposite effect, study finds. The administrative burden in Australian universities is most keenly felt by teaching and research staff, according to a study from the University of Melbourne’s faculty of education. www.researchprofessionalnews.com/rr-news-aust...

🔈Job Alert! IAS is looking for a postdoctoral researcher as part of the Swedish Excellence Center in Computational Social Science -SWECSS. ⌛Deadline: September 30th Apply 👉 liu.se/en/work-at-l... #academicsky #css

Ben Jarvis@benjarvis.bsky.social · 12mo ago

@iasliu.bsky.social is advertising another postdoc position as part of the Swedish Excellence Center in Computational Social Science. For recently graduated or soon-to-graduate PhD students, the setting is really conducive to getting high quality research done. Apply by September 30th!

My take on the NATO summit. Lots of unintended consequences with Europeans agreeing to something that few intend to deliver on. NATO ignoring its major challenge, fighting together as Europe with less US. That requires deep reforms, not vague spending pledges. www.csis.org/analysis/nat...

NATO’s “Brain Death” in The Hague

At the 2025 NATO Summit, allies pledged to raise defense spending to 5 percent of GDP. But spending targets alone ignore deeper issues. Europe must shift its focus to building capable, integrated mili...

csis.org

Ketju vähemmän tunnettuista tilastoista Suomesta, vertailukohtana muut pohjoismaat.🧵 Aloitetaan verotuksen tasosta. Verotulot suhteessa BKT on Suomessa pohjoismaiden alhaisimmat. Tämä ei sisällä esim. eläkemaksuja ja muita sosiaalivakuutusmaksuja. 1/

Verotulot suhteessa BKT

Ruotsi: 26,80%
Tanska: 24,50%
Islanti: 22,40%
Norja: 21,30%
Suomi: 20,00%

The understudied dangers of anthropomorphic seduction - "While the AI industry directs much effort into improving the reasoning abilities of LLMs—with mixed results—the progress in communicative abilities remains underappreciated." www.pnas.org/doi/10.1073/...

The benefits and dangers of anthropomorphic conversational agents | PNAS

A growing body of research suggests that the recent generation of large language model (LLMs) excel, and in many cases outpace humans, at writing p...

pnas.org