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Andrea Baronchelli

@baronca

Decentralised networks of humans and machines https://www.andreabaronchelli.com/

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29.10.2023
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Latest posts by Andrea Baronchelli @baronca

Cartoon that shows how PhDs are pushing the frontiers of knowledge.

Cartoon that shows how PhDs are pushing the frontiers of knowledge.

Keep pushing & don't forget the bigger picture :)

25.02.2026 12:37 πŸ‘ 45 πŸ” 17 πŸ’¬ 2 πŸ“Œ 0
Poster of 13th Econ and Bio workshop on 'social influence and it's macro consequences'

Poster of 13th Econ and Bio workshop on 'social influence and it's macro consequences'

Travel grants πŸ“£

For the 13th Toulouse Economics & Biology Workshop (June 1–2, 2026, @IAST) we have travel fellowships for PhDs & early-career researchers presenting a poster. Apply by Feb 27! Details: www.iast.fr/conferences/...

18.02.2026 13:20 πŸ‘ 15 πŸ” 11 πŸ’¬ 1 πŸ“Œ 1

Science Advances: LLM populations develop social conventions through decentralized interactions alone.

Most striking: collective biases emerge even when individual agents show NO bias. Group dynamics create preferences no single agent has.
https://www.science.org/doi/10.1126/sciadv.adu9368

07.02.2026 06:21 πŸ‘ 8 πŸ” 1 πŸ’¬ 1 πŸ“Œ 0
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This is a good metaphor for science.

08.02.2026 15:58 πŸ‘ 21 πŸ” 7 πŸ’¬ 1 πŸ“Œ 0

At Stanford Feb 4–6 (GSB talk on the 4th). Around to chat about AI swarms, norms, collective alignment, and governance risks in multi-agent systems incl social media and blockchain. Ping or DM me.

29.01.2026 13:04 πŸ‘ 3 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0

Our new collective effort highlights what happens when AI acts in populations rather than as isolated tool. TL;DR: a lot.

26.01.2026 09:06 πŸ‘ 9 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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Tremendously important work...πŸ‘‡

How malicious AI swarms can threaten democracy www.science.org/doi/10.1126/... @daniel-thilo.bsky.social @kunstjonas.bsky.social et al.

AI swarms are can be used to engineering a "synthetic
consensus" that can manipulate public opinion and perceptions.

22.01.2026 21:58 πŸ‘ 58 πŸ” 23 πŸ’¬ 2 πŸ“Œ 3
A grid of images showing SocioPatterns wearable devices, collaborators of the project, proximity graphs, and deployments in museums, hospitals, villages.

A grid of images showing SocioPatterns wearable devices, collaborators of the project, proximity graphs, and deployments in museums, hospitals, villages.

Long overdue refresh of the SocioPatterns website! ✨ sociopatterns.org New content & datasets, and a chance to celebrate 17+ years of collabs, ~100 publications, 2000+ studies using our data. Thanks – more ahead! @alainbarrat.bsky.social @wouter-vdb.bsky.social @foolsdelight.bsky.social @isi.it

14.01.2026 13:37 πŸ‘ 22 πŸ” 17 πŸ’¬ 1 πŸ“Œ 1

πŸ‘‡

04.01.2026 18:10 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Happy to be hosting @baronca.bsky.social and Johan Bollen here this week at the @exeter.ac.uk @exetercompsci.bsky.social. After a work day, we had a chance to go for a drink and dinner with them (w/ @diogofpacheco.bsky.social)

04.12.2025 15:23 πŸ‘ 6 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Multilayer network science: theory, methods, and applications Multilayer network science has emerged as a central framework for analysing interconnected and interdependent complex systems. Its relevance has grown substantially with the increasing availability of...

Our review on multilayer network science is out on the arXiv. Thanks to all collaborators of the AccelNet MultiNet project, great working with you all πŸ™ @alexvespi.bsky.social @ymoreno.bsky.social @lordgrilo.bsky.social @anduviera.bsky.social @baronca.bsky.social
arxiv.org/abs/2511.23371

01.12.2025 18:18 πŸ‘ 19 πŸ” 9 πŸ’¬ 0 πŸ“Œ 0
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New preprint: More is different for AI multi-agent systems - but what does more mean?

arxiv.org/abs/2510.22422

With @ariel-flint.bsky.social, @lajello.bsky.social and Romualdo Pastor-Satorras.

28.10.2025 11:07 πŸ‘ 10 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

Nowadays, often the justification for choosing M$ is that it claims to be GDPR compliant, which just means that M$ can afford getting sued for any breach, which of course happens all the time. And universities don't care about potential breaches themselves, only about liability, which M$ absorbs.

06.11.2025 16:11 πŸ‘ 8 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0
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Group size effects and collective misalignment in LLM multi-agent systems Multi-agent systems of large language models (LLMs) are rapidly expanding across domains, introducing dynamics not captured by single-agent evaluations. Yet, existing work has mostly contrasted the be...

Group size effects and collective misalignment in LLM multi-agent systems arxiv.org/abs/2510.22422

29.10.2025 08:49 πŸ‘ 1 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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New preprint: More is different for AI multi-agent systems - but what does more mean?

arxiv.org/abs/2510.22422

With @ariel-flint.bsky.social, @lajello.bsky.social and Romualdo Pastor-Satorras.

28.10.2025 11:07 πŸ‘ 10 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

Not being an AI-doomer, but having experienced in my own department over the past 7 years a steady erosion of faculty governance norms and diminished prioritization of research-oriented pedagogy, this tracks. Let faculty and faculty interests lead the way, rather than administrators/regents

24.10.2025 15:33 πŸ‘ 15 πŸ” 5 πŸ’¬ 1 πŸ“Œ 0
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β€œLLMs don’t understand.”
Of course. That was never the point.
The point is: we’re already using them as if they do β€”
to moderate, to classify, to prioritize, to decide.
That’s not a model problem.
It’s a systemic one.
The shift from verification to plausibility is real.
Welcome to Epistemia.

20.10.2025 17:31 πŸ‘ 4 πŸ” 2 πŸ’¬ 1 πŸ“Œ 0
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Tech billionaires seem to be doom prepping. Should we be worried? The debate is ramping up about what happens if - or when - computer intelligence overtakes humans

'I once met a former bodyguard of one billionaire with his own "bunker", who told me his security team's first priority, if this really did happen, would be to eliminate said boss and get in the bunker themselves. And he didn't seem to be joking.'

10.10.2025 11:28 πŸ‘ 6 πŸ” 1 πŸ’¬ 0 πŸ“Œ 0
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Researchers say Israeli government likely behind AI-generated disinfo campaign in Iran The group leveraged dozens of social media accounts and β€œroutinely used” AI-generated imagery and video to stoke unrest among Iran’s population, according to Citizen Lab.

Researchers say Israeli government likely behind AI-generated disinfo campaign in Iran

cyberscoop.com/citizen-lab-...

06.10.2025 14:07 πŸ‘ 3 πŸ” 2 πŸ’¬ 0 πŸ“Œ 0

It was a ton of fun to play a small role in this project lead by the brilliant Marta Ewa Lech & @jonassjuul.bsky.social. A lot of drama & change in the world of music reflected in the song-dynamics of the Billboard Hot 100!

22.09.2025 09:27 πŸ‘ 5 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0

There are two ways to deal with LLMs in our work

One is the path of abundance: automate everything and multiply publications at the expense of quality

The other is the path of focusing on the soul of the work, on the questions that still matter - to you - when everything else has been made trivial

02.09.2025 10:51 πŸ‘ 7 πŸ” 0 πŸ’¬ 2 πŸ“Œ 0
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Wikimedia Foundation Challenges UK Online Safety Act Regulations – Wikimedia Foundation UPDATE: On Monday, 11 August, the High Court of Justice dismissed the Wikimedia Foundation’s challenge to the UK’s Online Safety Act (OSA) Categorisation Regulations. While the decision does not provi...

Breaking: the court ruling in Wikipedia's legal challenge to the Online Safety Act categorisation regime has just been handed down. The court dismissed Wikipedia's challenge. This is bad. This is very bad. wikimediafoundation.org/news/2025/08...

11.08.2025 09:57 πŸ‘ 394 πŸ” 261 πŸ’¬ 12 πŸ“Œ 54
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Presented our work, β€œCultural and Cognitive Insights from 2.6 Billion Drawings,” at @ic2s2.bsky.social this morning. Big thanks to Mauro Martino, Nima Dehmamy, @douglasguilbeault.bsky.social, @lajello.bsky.social, and @baronca.bsky.social for the collaboration ✨

Stay tuned for more results!

23.07.2025 15:20 πŸ‘ 41 πŸ” 7 πŸ’¬ 0 πŸ“Œ 0

Looking forward to it!

07.07.2025 11:12 πŸ‘ 2 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
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Moral judgments in online discourse are not biased by gender Scientific Reports - Moral judgments in online discourse are not biased by gender

🚨Are moral judgements biased by the gender of the subject?
We find *no* direct effect when looking at Reddit!

Our causal study design is based on carefully matching similar situations that people with different genders experience (and share).

Study led by @loreb92.bsky.social

rdcu.be/eumlQ

02.07.2025 07:59 πŸ‘ 8 πŸ” 3 πŸ’¬ 0 πŸ“Œ 0
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The emergence of consensus: a primer | Royal Society Open Science The origin of population-scale coordination has puzzled philosophers and scientists for centuries. Recently, game theory, evolutionary approaches and complex systems science have provided quantitative...

This may be useful to understand the complex systems concepts used in the paper, including coordination and (spontaneous) emergence royalsocietypublishing.org/doi/full/10....

01.07.2025 10:20 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0
OSF

Our preprint β€œHow Malicious AI Swarms Can Threaten Democracy” is now online.

We show how coordinated multi-agent LLM swarms can infiltrate communities, craft synthetic grassroots β€œconsensus,” and erode institutional trustβ€”and what we can do now to stop it.

osf.io/preprints/os...

03.06.2025 17:57 πŸ‘ 31 πŸ” 14 πŸ’¬ 3 πŸ“Œ 1
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Computer-vision research powers surveillance technology - Nature An analysis of research papers and citing patents indicates the extensive ties between computer-vision research and surveillance.

New paper hot off the press www.nature.com/articles/s41...

We analysed over 40,000 computer vision papers from CVPR (the longest standing CV conf) & associated patents tracing pathways from research to application. We found that 90% of papers & 86% of downstream patents power surveillance

1/

25.06.2025 17:29 πŸ‘ 937 πŸ” 533 πŸ’¬ 31 πŸ“Œ 77

At #ICWSM? Here's a starter pack for you :)
bsky.app/starter-pack...

Check also "Bootstrapping Social Networks: Lessons from Bluesky Starter Packs" ojs.aaai.org/index.php/IC...

26.06.2025 09:41 πŸ‘ 11 πŸ” 3 πŸ’¬ 0 πŸ“Œ 1

Questions: arxiv.org/pdf/2505.23796

24.06.2025 15:34 πŸ‘ 1 πŸ” 0 πŸ’¬ 0 πŸ“Œ 0