Jonas L Juul

@jonassjuul.bsky.social

Assistant Professor at the IT University of Copenhagen. Interested in networks, spreading processes, and data science.

Sprogmodeller skal blive bedre til sprog 🗣️ Tillykke til ITU-lektor Rob van der Goot, der med støtte fra @carlsbergfondet.dk vil undersøge, hvordan man kan integrere sproglig viden direkte i sprogmodellers design. Det udfordrer den dominerende tilgang, der primært bygger på data og beregningskraft.

Bevilling på 6,99 mio. kr. skal gøre sprogmodeller bedre til sprog

Carlsbergfondet finansierer lektor på ITU, Rob van der Goots projekt, der skal gøre sprogmodeller bedre til at afkode sproglige signaler.

itu.dk

New paper in Science: In a platform-independent field experiment, we show that reranking content expressing antidemocratic attitudes and partisan animosity in social media feeds alters affective polarization. 🧵

Today, social media platforms hold the sole power to study the effects of feed-ranking algorithms. We developed a platform-independent method that reranks participants’ feeds in real time and used this method to conduct a preregistered 10-day field experiment with 1256 participants on X during the 2024 US presidential campaign. Our experiment used a large language model to rerank posts that expressed antidemocratic attitudes and partisan animosity (AAPA). Decreasing or increasing AAPA exposure shifted out-party partisan animosity by more than 2 points on a 100-point feeling thermometer, with no detectable differences across party lines, providing causal evidence that exposure to AAPA content alters affective polarization. This work establishes a method to study feed algorithms without requiring platform cooperation, enabling independent evaluation of ranking interventions in naturalistic settings.

I am hiring a postdoc for a DFF-funded project on social influence, and the decision processes that fuel rich-get-richer dynamics in the online/offline world. The position is for up to a year, competitive Danish salary, remote work possible. Interested or know somebody? DM me or share!

I am ecstatic to join the Danish Young Academy starting September 2025. I cannot wait to meet the other members, start new collaborations, and learn more about the new opportunities and challenges that lie at the intersection of research, universities, and society in Denmark.

IT-Universitetet i København@itu.dk · last yr.

ITU-adjunkt @jonassjuul.bsky.social er blevet optaget i Det Unge Akademi. Rigtig stort tillykke! 👏🥳 Læs mere om Jonas' forskning og udnævnelsen her 👉 itu.dk/Om-ITU/Press...

I am hiring PhD students and Postdocs to join me in beautiful Copenhagen. Together, we will develop data science methods to improve epidemic preparedness. Copenhagen is amazing, salary is good, we have plenty of funding, and a great community. Read more..: candidate.hr-manager.net/ApplicationI...

Ph.D. and postdoc positions in Data Science for epidemic preparedness at the NERDS research group

The NERDS (NEtwoRks, Data, and Society) team at the IT University of Copenhagen welcomes applications from aspiring PhD students and postdocs in the areas of Da

candidate.hr-manager.net

There are days in life that shake you. I’m shattered 💔 to share that I just found out that the US Government terminated my 2024 NIH Director’s Early Independence Award (~$2 million), threatening my long-promised assistant professor job at Columbia University & academic career... 1/🧵

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