Luca Rossi

@lrossi.bsky.social

1.4K followers 330 following 150 posts

I work at IT University of Copenhagen trying to understand online participation and collective action while having fun with methods.
Also Head of the Data Science Section.

Videos

Physics 28%

Communication & Media Studies 26%

Posts Replies Media Videos

Pinned

Luca Rossi @lrossi.bsky.social · Sep 19

#computationalsocialscience Our work on using VLLMs for semantic visual clustering is out on SSCR: journals.sagepub.com/doi/10.1177/...

There is a lot happening in the space of computational analysis of visual content as we acknowledge more and more the visual nature of contemporary communication.

Sage Journals: Discover world-class research

Subscription and open access journals from Sage, the world's leading independent academic publisher.

journals.sagepub.com

Reposted by Elisa D. Mekler

Luca Rossi @lrossi.bsky.social · 15h

for now it might be useful to know that I'll be hiring a postdoc to work on computational methods to detect online misogyny. If this is something you find interesting: let's have chat.

Reposted by Elisa D. Mekler

Luca Rossi @lrossi.bsky.social · 15h

Second news of the day. As part of a stellar group led by @gboccia.bsky.social our FemVision project was funded by @horizoneu.bsky.social in the context of the "CL2-2025-01-DEMOCRACY-05 - Countering and preventing radicalisation, extremism, hate speech and polarisation" call. More will come but

Luca Rossi @lrossi.bsky.social · 15h

polarization in the context of climate change and will touch both on theoretical as well as on methodological aspects. We'll have more to share after each workshop but for now we're all happy to book tickets to Bochum! @nicolemilmandoerr.bsky.social @uuinfolab.bsky.social @anniewald.bsky.social

Luca Rossi @lrossi.bsky.social · 15h

It's time for a few professional updates. Together with the team behind the PolarVis project and with @flxvctr.bsky.social we have been invited by @cais-research.bsky.social to organize three workshops in Bochum. The workshops - between February and May - will expand on our understanding o visual

Reposted by Luca Rossi, Robert C. Richards, Olivier Mannoni

The New York Times @nytimes.com · 2d

Federal prosecutors had a warrant to collect evidence from Renee Good’s vehicle after an immigration agent fatally shot her, but Trump administration officials ordered them to stop investigating. About a dozen prosecutors have since resigned, leaving the Minnesota U.S. attorney’s office in turmoil.

Prosecutors Began Investigating Renee Good’s Killing. Washington Told Them to Stop.

www.nytimes.com

Reposted by Luca Rossi, Anders Sundnes Løvlie

Reinier Van Lanschot @reiniervanlanschot.volteuropa.org · 16d

A European Army is not naive- it is the only thing that will keep us safe 🇪🇺

Volt has been talking about a European Army for years. Now the rest of Europe is finally catching up. 27 little armies will never fight as well or as efficiently as one European Army. Enough talk- let’s start building it

Reposted by David Lazer, Axel Bruns, Luca Rossi , and 1 more David Lazer, Axel Bruns, Luca Rossi, Johannes Breuer

Katrin Weller @kwelle.bsky.social · 26d

Join us in Frankfurt or online: "Social Media Access Days" - Social media data between research and infrastructure – sustainable archiving, cataloguing and access. March 17-19. Featuring a keynote by @snurb.info. Full program and registration details at: www.dnb.de/EN/Kulturell...

Social Media Access Days

Social media data between research and infrastructure – sustainable archiving, cataloguing and access.

www.dnb.de

Luca Rossi @lrossi.bsky.social · 26d

If you know someone who could be interested in a MA on digital media, I would seriously consider this one! Great University and stellar group of teachers!

Reposted by Luca Rossi, Taha Yasseri

David Lazer @davidlazer.bsky.social · Dec 22

Excited to see this out! congrats to @tahayasseri.bsky.social & all contributors!

Taha Yasseri @tahayasseri.bsky.social · Dec 19

Thrilled to announce the Handbook of Computational Social Science is officially out! 956 pages, 118 authors, and truly global, interdisciplinary perspectives. Deep thanks to the contributors and anonymous reviewers who shaped this over 4 years. Buy your copy now!
@elgarpublishing.bsky.social

Reposted by Luca Rossi, Giovanna Mascheroni

Tama Leaver @tamaleaver.bsky.social · Dec 15

Of course it f&&king is. Please don't use GenAI for news. Please don't use Grok for anything.

Grok is spreading misinformation about the Bondi Beach shooting www.theverge.com/news/844443/...

Grok is spreading misinformation about the Bondi Beach shooting

Grok has repeatedly misidentified video of the Bondi Beach shooting and the hero who disarmed a gunman.

www.theverge.com

Reposted by Anne Rasmussen, Luca Rossi, Ariadne Vromen , and 6 more Anne Rasmussen, Luca Rossi, Ariadne Vromen, Timothy Graham, Manuel Puppis, Johannes Breuer, Aleksandra Urman, Jan Fuhse, David Darmofal

Alessandro Nai @alessandronai.bsky.social · Dec 10

After 3 years and 5,322 emails (and counting) our Encyclopedia of Political Communication is finally out at @elgarpublishing.bsky.social

📚 Three volumes
⭐ 431 entries
🎓 581 wonderful authors from across the world

A very short 🧵

Reposted by Luca Rossi, Ariadne Vromen

Tama Leaver @tamaleaver.bsky.social · Dec 10

There are lots of myths about the Australian #SocialMediaBan for under16s. One is that it will stop cyberbullying. It won't.

Here's a short, blunt piece from me in @theconversation.com explaining why: theconversation.com/australias-s...

Australia’s social media ban won’t stop cyberbullying

A technical fix can’t solve a social problem.

theconversation.com

Luca Rossi @lrossi.bsky.social · Nov 21

This! 👇(and a good number of the places in this list are on that triangle of Italy between Romagna, Marche and Toscana.

The Guardian @theguardian.com · Nov 21

‘It’s like stepping into a Renaissance masterpiece’: readers’ favourite unsung places in Italy

The country has so many cultural and historical treasures that relatively few are known to tourists. Our tipsters share their discoveries, from ancient hill towns to a mini Venice• Tell us about your favourite travel discoveries of the year – the best tip wins a £200 holiday voucher

www.theguardian.com

Reposted by Luca Rossi

The Guardian @theguardian.com · Nov 21

‘It’s like stepping into a Renaissance masterpiece’: readers’ favourite unsung places in Italy

www.theguardian.com

Luca Rossi @lrossi.bsky.social · Nov 21

Once more. When there is no understanding all the safety measure that one can imagine can only be based on explicit examples and some weak ability to narrowly generalize.

Charlie Stross @cstross.bsky.social · Nov 20

Looks like LLMs are *very* vulnerable to attack via poetic allusion: "curated poetic prompts yielded high attack-success rates (ASR), with some providers exceeding 90% ..."

https://arxiv.org/html/2511.15304v1

Reposted by Luca Rossi, Daniel Angus

Tama Leaver @tamaleaver.bsky.social · Nov 21

I'm very pleased this piece co-authored with @antmandan.bsky.social is out in the @aunz.theconversation.com this morning.

theconversation.com/australia-is...

Australia is about to ban under-16s from social media. Here's what kids can do right now to prepare
Daniel Angus, Queensland University of Technology
and Tama Leaver, Curtin University

Reposted by Diane Coyle, Meredith Broussard, Luca Rossi , and 12 more Diane Coyle, Meredith Broussard, Luca Rossi, Charles West, Alison Phipps, Elaine Treharne, Melanie C. Green, Janet Murray, Rebecca Tushnet, Margot C. Finn, Anders Sundnes Løvlie, Joanna Tai, Georg Weizsäcker, Kathleen Kennedy, Peter Bergman

Charlie Stross @cstross.bsky.social · Nov 20

Luca Rossi @lrossi.bsky.social · Nov 19

that put the Capital of Denmark on the left of the rest of the country. Overall the model shows signs of what we could interpret as a "resolution limit" . I'm sure this limit is different in different countries and it's probably connected with the training data, but it's something worth remembering.

Luca Rossi @lrossi.bsky.social · Nov 19

In many cases - mostly the smaller parties - the actual % of votes is quite within the range of the predicted values. Yet, the model gets wrong the top party, over estimates the Socialdemocratic party and under estimates Enhedslisten. These are all - well-known - specific traits of Copenhagen,

Luca Rossi @lrossi.bsky.social · Nov 19

(multiple iterations are shown) as well as the actual % of votes. The results are somehow interesting and shows the potential and the limitations of this approach. Here I'm going to refer to the "values" produced by the LLMs as "predictions" (bear with me).

Luca Rossi @lrossi.bsky.social · Nov 19

#kv25 Since I keep reading and reviewing papers using #LLMs to simulate social dynamics I think it's just fair to see how they would do in simulating the outcome of the local elections we had yesterday in #Copenhagen. The plot below shows the "predicted" value obtained via gpt4o

Reposted by Luca Rossi, Miranda J. Lubbers, Johannes Breuer

aytalina @aytalina.bsky.social · Nov 18

Are you applying computational methods in your research or thinking about starting a lab? Join us for the first Computational Methods Labs Showcase by the ICA CM Division @icacm.bsky.social 🌟
Online on Feb 16, 2026, 4:00–5:30 pm CET / 10:00–11:30 am EST 📆
Register 👇
forms.office.com/e/zHBkwUWNFw

Reposted by Luca Rossi, Paul Nightingale, Florian Keusch , and 2 more Luca Rossi, Paul Nightingale, Florian Keusch, Tom Louwerse, Roman Senninger

Johannes Breuer @johannesbreuer.com · Nov 8

"dplyr but make it bussin fr fr no cap"
hadley.github.io/genzplyr/

dplyr but make it bussin fr fr no cap

`genzplyr` is an alternative syntax for `dplyr` that replaces boring old function names with GenZ slang. Your data wrangling is about to hit different.

hadley.github.io

Luca Rossi @lrossi.bsky.social · Nov 3

New DFF grant at @itu.dk in the @nerdsitu.bsky.social group! @vedrandzihic.bsky.social will leverage GPS data to understand how climate events affect human mobility!
nerds.itu.dk/2025/11/03/v...

nerds.itu.dk

Reposted by Luca Rossi

IT-Universitetet i København @itu.dk · Oct 30

@paoloburelli.bsky.social og hans kolleger ved ITU's brAIn Lab arbejder i krydsfeltet mellem digital teknologi og neurovidenskab.

Ved hjælp af kunstig intelligens søger de at skabe en forståelse af, hvordan den menneskelige hjerne fungerer 🧠

www.itu.dk/Om-ITU/Press...

Kan kunstig intelligens forudsige menneskelig adfærd?

Hvad hvis det var muligt at læse hjernen som en bog? Paolo Burelli og hans kolleger ved IT-Universitetets brAIn Lab arbejder i krydsfeltet mellem digital teknologi og neurovidenskab. Den 5. november p...

www.itu.dk

Reposted by Luca Rossi, Nancy K. Baym

Michael Zimmer @michaelzimmer.bsky.social · Oct 24

Michelle has been invaluable in that role for nearly a decade now, but the time has come for @aoir.bsky.social to find a new coordinator to take on these vital duties. 2/2

Job posting is on our listserv. Please share & apply! listserv.aoir.org/pipermail/ai...

[Air-L] AoIR is searching for a new Association Coordinator!

listserv.aoir.org

Reposted by Luca Rossi

Social Media Lab @socialmedialab.ca · Oct 24

This will not come as a surprise to any social media or internet researchers.

"Today, the European Commission preliminarily found both TikTok & Meta in breach of their obligation to grant researchers adequate access to public data under the Digital Services Act (#DSA)." ec.europa.eu/commission/p...