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Luca Maria Aiello

@lajello.bsky.social
2.1K followers 1K following 30 posts

Computational Social Science researcher interested in Human Coordination and emergence of new phenomena in human-AI societies. Professor of Data Science at the IT University of Copenhagen. Network Science | NLP | AI agents www.lajello.com

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Reposted by Luca Maria Aiello
Andrea Baronchelli @baronca.bsky.social · 23/09/2026
New preprint: “Indirect tipping: a social attack surface in AI agent populations.” What if the easiest way to move an AI swarm from A→B is not direct, but A→C→B? We show that stepping-stone equilibria can lower tipping thresholds and unlock otherwise inaccessible transitions.
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Andrea Baronchelli @baronca.bsky.social · 19/08/2026
New paper! When AI agents interact, the group can settle on outcomes none of its members would choose alone. And group size can determine which outcome wins. So a model that passes every test on its own can still go wrong at scale. www.pnas.org/doi/10.1073/...
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International Conference on Computational Social Science @ic2s2.bsky.social · 01/08/2026
That's a wrap on IC2S2 2026... we'll see you next year in Milan! 😍
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Taha Yasseri @tahayasseri.bsky.social · 28/07/2026
Chapter 19: @lajello.bsky.social on Learning the Social Pragmatics of Language. A thought-provoking chapter arguing that CSS should move beyond syntax and semantics to study intentions, relationships, and social action expressed through language. A compelling vision for next generation of NLP & CSS.
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Michael Szell @mszll.datasci.social.ap.brid.gy · 08/07/2026
🚨 New paper on #cycling #politics: Right-wing Votes Relate to Delays in Bicycle Network Development findingspress.org/article/163938-ri…
Left: Paris’ Plan Vélo 2021-2026 progress on street level, Right: share of bicycle lanes built 
 aggregated by political voting unit
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Steven Strogatz @stevenstrogatz.com · 23/06/2026
My new book! Written w my pal Alex Townsend, it's about the math behind enormous systems (medical scans, AI, etc.) and what happens when they outgrow our ability to understand them. Pre-order at @barnesandnoble.com for 25% off -> www.barnesandnoble.com/w/big-math-s... @littlebrown.bsky.social
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Luca Maria Aiello @lajello.bsky.social · 17/04/2026
Thrilled to announce CS2Nordics: the First Nordic Conference on Computational Social Science. Copenhagen, September 21-22, 2026. We invite all CSS researchers in the Nordics as well as in the international research community to submit 2-page abstracts by June 19: nosocss.org/conference.h....
View over the canal in Nyhavn, Copenhagen
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Arianna Pera @ariannapera.bsky.social · 09/04/2026
Thrilled to share that our work has been accepted at @icwsm.bsky.social 2026 🌟 Thanks @cerenbudak.bsky.social and @lajello.bsky.social for the great collaboration! 📖 arxiv.org/abs/2510.01757
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Sagar Kumar @diesagar.bsky.social · 25/03/2026
MASSIVE thank you to the brilliant @ariel-flint.bsky.social @lajello.bsky.social and @baronca.bsky.social for their help on this work!! Check out the preprint if you want to learn more: arxiv.org/abs/2603.23485 #LingSky #ResponsibleAI #AI #NLP #MachineLearning
arxiv.org
Failure of contextual invariance in gender inference with large language models
Standard evaluation practices assume that large language model (LLM) outputs are stable under contextually equivalent formulations of a task. Here, we test this assumption in the setting of gender inf...
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Luca Maria Aiello @lajello.bsky.social · 25/03/2026
AI can now answer questions about video content, transforming how people consume information on the Web. An experiment with 900+ participants found that AI improves speed and accuracy of retrieval BUT, users become overreliant on AI answers, accepting wrong answers without any loss of confidence.
A two barplots side by side.The left plot shows accuracy of information retrieval (y-axis, ranging from 0 to 100%) across three conditions (No AI, AI, and AI providing wrong answers). The right plot shows self-reported confidence in the answer correctness (y-axis, ranging from 0 to 5) across the same three conditions. Across the two plots, each condition contains two bars: one for users who watched the relevant segment of the video containing the answer to a question, and one for users who did NOT watch the segment. The plot conveys the following messages. 1) In the "No AI" condition, people who did not watch the video provide far less accurate responses. 2) In the "AI" condition, accuracy is high regardless of whether people watched the video or not. 3) in the "AI providing wrong answer" condition, accuracy drops to the minimum values for people who did not check the video. 4) Self-reported confidence in the answers is always high across all conditions, with just a tiny difference between the watched vs. non-watched scenarios
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NERDS @nerdsitu.bsky.social · 19/03/2026
📣 PhD and Postdoc call: Using data science to improve epidemic preparedness nerds.itu.dk/2026/03/18/p... with @jonassjuul.bsky.social
nerds.itu.dk
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Matt DeVerna @matthewdeverna.com · 27/02/2026
We are looking forward to your amazing submissions to the CySoc workshop at ICWSM 2026! Learn more here: cy-soc.github.io/2026/ Note: the previously circulated submission deadline has been shifted.
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NERDS @nerdsitu.bsky.social · 27/02/2026
Arianna Pera @ariannapera.bsky.social defends her PhD: The Language of Collective Action in the Social Web nerds.itu.dk/2026/02/27/a...
3-part photograph: Top left: Smiling young female researcher in black, in front of title slide, Right: PhD Committee: 3 middle-aged researchers and one young researcher, Bottom left: Many colleagues celebrating in a pub
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ISI Foundation @isi.it · 30/01/2026
📣 CS2Italy 2026 the Italian Conference on Computational Social Science ⏰ Today is the last day to submit your abstract 📍 Turin, May 19–21 We welcome abstract submissions in: #ComputerScience #NetSci #ComplexSystems #Sociology #Economics #Politics #CognitiveScience #Psychology 👉 cs2italy.org
cs2italy.org
CS2Italy
The Microsoft CMT service was used for managing the peer-reviewing process for this conference. This service was provided for free by Microsoft and they bore all expenses, including costs for Azure cl...
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Sander van der Linden @profsanderlinden.bsky.social · 22/01/2026
We have a new paper in Science today on how malicious AI swarms can threaten democracy. AI systems can already coordinate autonomously, infiltrate communities, and fabricate social consensus. www.science.org/doi/10.1126/... Led by @kunstjonas.bsky.social & @daniel-thilo.bsky.social!
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The Institute for Analytical Sociology @iasliu.bsky.social · 19/01/2026
✨ We’re excited to announce the Spring 2026 IAS Seminar Series, featuring a stellar lineup of speakers and thought-provoking talks. Open to all! #AcademicSky
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CS2Italy @cs2italy.bsky.social · 15/01/2026
1) Due to popular demand, the abstract deadline has been extended to 👉Jan 30👈 -- plz share! 2) We are delighted to announce our keynote speaker -- Taha Yasseri @tahayasseri.bsky.social Chair of Technology and Society @ Trinity College Dublin & Technological University Dublin ▶️ cs2italy.org
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Arianna Pera @ariannapera.bsky.social · 07/01/2026
Our recent work (with Veronica Jude, @lajello.bsky.social, and @cerenbudak.bsky.social) on U.S. union Facebook messaging got featured by @poweratwork.bsky.social: poweratwork.us/the-words-th... Thanks to Seth Harris and Dane Gambrell for the helpful feedback! 📖 Full paper arxiv.org/abs/2510.01757
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Luca Maria Aiello @lajello.bsky.social · 05/01/2026
Computational Social Scientists in the Nordics, unite! 🇩🇰🇫🇮🇳🇴🇸🇪🇮🇸 The brand new Nordic Society for CSS welcomes all researchers and practitioners based in the Nordics. The Society will promote student mobility, events, and education initiatives. Join for free: nosocss.org/join.html.
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NetScience @netscience.bsky.social · 20/11/2025
Latest out in Plos Comp Bio: "Epydemix: An open-source Python package for epidemic modeling with integrated approximate Bayesian calibration". A new package in Python for epidemic modeling. Paper: journals.plos.org/ploscompbiol.... Website with lots of tutorials: www.epydemix.org
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CS2Italy @cs2italy.bsky.social · 18/11/2025
🔈 *Call for Participation* 🔈 Italian Conference on Computational Social Science – CS2Italy May 19-21, 2026 in Torino, Italy Premier venue for Computational Social Science in Italy: #sociology #polisci #economics #netsci #complexsystems ++ Submit your abstract by Jan 15: cs2italy.org plz reshare
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Manoel Horta Ribeiro @manoelhortaribeiro.bsky.social · 17/11/2025
TikTok and the likes transformed how we spend time on our phones. But do they increase mobile use, or just reshuffle what we already do? We find that adopting TikTok increases total mobile usage and shortens breaks from the phone. Preprint: osf.io/preprints/so...
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NetScience @netscience.bsky.social · 14/11/2025
Latest out: Fairness in infectious disease modeling. Great collaboration with Yuhan Li, @ngozzi.bsky.social @mtizzoni.bsky.social www.medrxiv.org/content/10.1...
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Andrea Baronchelli @baronca.bsky.social · 28/10/2025
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.
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Arianna Pera @ariannapera.bsky.social · 03/10/2025
How does online communication adapt to organizational context? In a new pre-print with @cerenbudak.bsky.social and @lajello.bsky.social, we study US labor unions’ Facebook use of discourse frames around wins and losses in representation elections. 🧵 📖 arxiv.org/abs/2510.01757
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NERDS @nerdsitu.bsky.social · 22/09/2025
This Wednesday, 24 September 2025 at 14:30, our Professor Luca Aiello @lajello.bsky.social will give his inaugural lecture in Auditorium 0 at the IT University in Copenhagen! en.itu.dk/About-ITU/Pr...
en.itu.dk
Professor portrait: Luca Aiello wants to make the internet a better place
On 24 September 2025 at 14:30, Professor Luca Aiello will give his inaugural lecture in Auditorium 0 at the IT University in Copenhagen.
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Theodora Moldovan @theamoldovan.bsky.social · 18/09/2025
Our new study provides the first large-scale look at how collective action is expressed in spoken digital discourse, using #BlackLivesMatter as a case study. Many thanks to @ariannapera.bsky.social @dvladek.bsky.social @lajello.bsky.social for the collab Check it out: arxiv.org/abs/2509.13197
arxiv.org
Podcasts as a Medium for Participation in Collective Action: A Case Study of Black Lives Matter
We study how participation in collective action is articulated in podcast discussions, using the Black Lives Matter (BLM) movement as a case study. While research on collective action discourse has pr...
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Luca Rossi @lrossi.bsky.social · 07/09/2025
No matter if you're going for a Sunday run, cleaning the house or walking the dog.. everything is better while listening to our Podcast on visual climate communication open.spotify.com/show/1ZwGesM... #climate #podcast #polarvis
open.spotify.com
From guerrilla tactics to viral content: on the evolution of environmental activism's communication
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Reposted by Luca Maria Aiello
Luca Rossi @lrossi.bsky.social · 15/08/2025
Jonas Juul, assistant professor in the NERDS group at @itu.dk receive the Ørsted Research Talent Award 2025!! Go Jonas! 👍💪🏽🧠🏆 #Research #DKresearch en.itu.dk/About-ITU/Pr...
en.itu.dk
Jonas Juul receives the H.C. Ørsted Research Talent Award 2025
Assistant Professor at the IT University of Copenhagen, Jonas Juul, has received the H.C. Ørsted Research Talent Awards 2025. Jonas Juul receives the prize for his research on social networks, informa...
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Vermont Complex Systems Institute @vcsi.bsky.social · 24/07/2025
Our team had an amazing week at @ic2s2.bsky.social in Norrköping Sweden and we will post pictures of our posters and talks soon - the big news is that we're so excited to host #IC2S2 in Burlington in 2026! youtu.be/p412S4GnPkc
youtu.be
IC2S2 2026 | Burlington, Vermont
YouTube video by UVM Office of Research
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Alessia Galdeman @alessianetwork.bsky.social · 23/07/2025
The Climate TikTok tour stops by Norrköping for @ic2s2.bsky.social 🌱 I presented “Mapping the climate change discussion on TikTok” at the poster session – had fun with my friend and poster buddy @ariannapera.bsky.social next to me. Vote for poster 32 and check out the paper: tinyurl.com/23atjxny
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Arianna Pera @ariannapera.bsky.social · 23/07/2025
The work “Extracting Participation in Collective Action from Social Media”, in collaboration with @lajello.bsky.social, at @ic2s2.bsky.social today! Check out the paper ojs.aaai.org/index.php/IC... and models huggingface.co/ariannap22 Feat. poster and research buddy @alessianetwork.bsky.social ♥️
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Arianna Pera @ariannapera.bsky.social · 23/07/2025
Presented our work, “Cultural 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!
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NERDS @nerdsitu.bsky.social · 22/07/2025
NERDS at #ic2s2 😍
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Anders Giovanni Møller @handle.invalid · 22/07/2025
#ic2s2 I’ll have a poster (#21) today on 𝐭𝐡𝐞 𝐢𝐦𝐩𝐚𝐜𝐭 𝐨𝐟 𝐠𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐯𝐞 𝐀𝐈 𝐨𝐧 𝐬𝐨𝐜𝐢𝐚𝐥 𝐦𝐞𝐝𝐢𝐚 ✌🏼
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Maria Antoniak @mariaa.bsky.social · 21/07/2025
Attending #IC2S2 or following along from home? Here's a feed of all the posts using the relevant hashtags or mentioning the conference account! (I'm feeling very strong FOMO and am relying on all of you there in person to post as much as possible!)
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Chiara Zappalà @chiarazappala.bsky.social · 10/07/2025
⭐ 𝗠𝗮𝗿𝗸 𝘆𝗼𝘂𝗿 𝗰𝗮𝗹𝗲𝗻𝗱𝗮𝗿𝘀! We're delighted to share that Luca Aiello @lajello.bsky.social will be joining us as a keynote speaker at our #ComputationalSocialScience Satellite, taking place during #CCS2025! 📍Siena, Italy 📅 Sep 4 💡Come curious, leave inspired.
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NetScience @netscience.bsky.social · 03/07/2025
A foundation model to predict and capture human cognition www.nature.com/articles/s41...
nature.com
A foundation model to predict and capture human cognition - Nature
A computational model called Centaur, developed by fine-tuning a language model on a huge dataset called Psych-101, can predict and simulate human nature in experiments expressible in natural language...
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Luca Maria Aiello @lajello.bsky.social · 26/06/2025
Testing LLMs in the Prisoner’s Dilemma to reveal their moral biases. LLMs can defect often but become more forgiving and less retaliatory than humans when opponents are mostly cooperative. Nicolò Fontana at #ICWSM. w @frapierri.bsky.social Paper: ojs.aaai.org/index.php/IC...
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icwsm.bsky.social @icwsm.bsky.social · 26/06/2025
Adamic-Glance Awardee Keynote: @gvrkiran.bsky.social on misinformation on whatsapp through the lens of a large data donation program #icwsm
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Andrea Baronchelli @baronca.bsky.social · 24/06/2025
A brief follow-up on the complex systems foundations of our LLM population study, sparked by ongoing debate. And why they matter for studying AI collectives more broadly. arxiv.org/abs/2506.18600 With @ariel-flint.bsky.social and @lajello.bsky.social
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Luca Maria Aiello @lajello.bsky.social · 24/06/2025
Detecting participation in collective action from social media text. Great tool to build large-scale ground truth about collective engagement online. Fantastic work by @ariannapera.bsky.social at #ICWSM. Paper: ojs.aaai.org/index.php/IC... Code: github.com/ariannap13/e...
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Luca Maria Aiello @lajello.bsky.social · 24/06/2025
The first large-scale controlled experiment to test the Matilda Effect in scientific citations. No effect of gendered author names on citation likelihood is detected. Great experimental design by @robysinatra.bsky.social at EDI session #ICWSM
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Luca Maria Aiello @lajello.bsky.social · 23/06/2025
How information sharing in social media has slowly shifted from public posting to private channels. Strong empirical evidence from Facebook by the one and only Kiran Garimella. DETOX #ICWSM.
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Luca Maria Aiello @lajello.bsky.social · 23/06/2025
The challenges of measuring representational fairness of graph community detection algorithms by @giorgospanay.bsky.social at DETOX #ICWSM.
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Luca Maria Aiello @lajello.bsky.social · 23/06/2025
Computational operationalization of the Actantial model with LLMs to identify narratives around the Israel-Palestine conflict in YouTube videos. Jan Elfes at DETOX #ICWSM.
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Luca Maria Aiello @lajello.bsky.social · 23/06/2025
Pitch frenzy at DETOX #ICWSM: Collective action narrative frames, censorship on TikTok, cross platform toxicity modeling, automatic moderation with AI, mitigation of hate speech, and much more.
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Luca Maria Aiello @lajello.bsky.social · 23/06/2025
X disproportionately pushing content from far-right parties in the “for you” feed in the context of German and Polish elections. Algorithmic auditing suggests that X’s feed algorithm uses political affiliation as a signal to boost content. @przemyslslaw.bsky.social at DETOX workshop #ICWSM
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Luca Maria Aiello @lajello.bsky.social · 23/06/2025
Kicking off #ICWSM with the DETOX workshop and @maxfalken.bsky.social’s keynote on why the Web is not a set of siloed platforms and why we should not study it as such. Shows why deplatforming doesn’t work exactly as we expect and why large online platforms are plagued by affective polarization
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Giulia Pullano @giuliapullano.bsky.social · 19/06/2025
Our new study shows how wildfire smoke drives people indoors, potentially increasing the risk of disease spread. We highlight how health is shaped not only by direct exposure, but also by the compounding effects of how people respond to climate extremes.
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