Luca Rossi
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lrossi.bsky.social
Luca Rossi
@lrossi.bsky.social

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.

Physics 28%
Communication & Media Studies 26%
Pinned
#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

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

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

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

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
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
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
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

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

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

Reposted by Luca Rossi

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

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.
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
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...
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

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.

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,

(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).

#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
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

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

@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
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

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...
Commission preliminarily finds TikTok and Meta in breach of their transparency obligations under the Digital Services Act
Today, the European Commission preliminarily found both TikTok and Meta in breach of their obligation to grant researchers adequate access to public data under the Digital Services Act (DSA).
ec.europa.eu

Reposted by Luca Rossi

For >1yr, I've been part of a @erc.europa.eu pilot to help implement #Article40 #DSA
This isn't just another law, it's key for transparency and democratic oversight
Please join us 22/10, register here⬇️
erc.europa.eu/news-events/events/erc-workshop-data-access-under-digital-services-act-dsa-article
ERC Workshop on data access under the Digital Services Act (DSA) Article 40
The Digital Services Act (DSA) is an European legislation that specifies a set of rules to make the digital space safer and more trustworthy for users.
erc.europa.eu
Over 2 million people across Italy have rallied in more than 100 cities for a one-day general strike.
2 million rally in Italy for Gaza as general strike halts key services
Over 2 million people across Italy have rallied in more than 100 cities for a one-day general strike.
bit.ly

Reposted by Luca Rossi

Three new NERDS publications: Polarization, image-to-text-mapping, and candidate recommendation
nerds.itu.dk/2025/09/30/t...