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.

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

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...

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

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

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...

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

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

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 ♥️

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!

NERDS at #ic2s2 😍

#ic2s2 I’ll have a poster (#21) today on 𝐭𝐡𝐞 𝐢𝐦𝐩𝐚𝐜𝐭 𝐨𝐟 𝐠𝐞𝐧𝐞𝐫𝐚𝐭𝐢𝐯𝐞 𝐀𝐈 𝐨𝐧 𝐬𝐨𝐜𝐢𝐚𝐥 𝐦𝐞𝐝𝐢𝐚 ✌🏼

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!)

⭐ 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.

A foundation model to predict and capture human cognition www.nature.com/articles/s41...

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...

Adamic-Glance Awardee Keynote: @gvrkiran.bsky.social on misinformation on whatsapp through the lens of a large data donation program #icwsm

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

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...

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

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.

The challenges of measuring representational fairness of graph community detection algorithms by @giorgospanay.bsky.social at DETOX #ICWSM.

Computational operationalization of the Actantial model with LLMs to identify narratives around the Israel-Palestine conflict in YouTube videos. Jan Elfes at DETOX #ICWSM.

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.

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

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

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.

AI-assisted social media posting increases the volume of content people produce. However, that content is perceived as lower quality than purely human-generated posts. A dangerous spiral that may flood social media with low-quality content. Results from a controlled study: arxiv.org/abs/2506.14295

Comparative analysis of behavioral feedback models for epidemic forecasting" www.pnas.org/doi/10.1073/... We test data-driven vs. analytical behavioral models in retrospective fitting and out-of-sample forecasting of real data. Shout-out to @netscience.bsky.social @ngozzi.bsky.social

Latest out in PNAS!! Comparative evaluation of behavioral epidemic models using COVID-19 data. Amazing collaboration with @ngozzi.bsky.social and @alexvespi.bsky.social www.pnas.org/doi/10.1073/...

Planning your trip for @icwsm.bsky.social ? Add DETOX workshop to your schedule! 🎤Submit for pitch talks - 2 minutes to share research, spark discussions, or introduce your work. Dynamic back-to-back format, established researchers & newcomers welcome! ⚡ Info here: tinyurl.com/mvn9zbmh

New paper alert. "More is different" & the LLMs. LLMs are usually studied in isolation. But what happens when they start interacting? We explored this by looking at their collective behaviour. Work with @ariel-flint.bsky.social and @lajello.bsky.social 1/

Let's say hello to Bluesky with this👇 📌 New preprint: Modeling the Impact of Group Interactions on Climate-related Opinion Change in Reddit arxiv.org/abs/2505.02989 🔎 High-order interactions from conversational data help predict the microscopic dynamics of opinion formation w/ @lajello.bsky.social

*Permanent* position in Applied Mathematics at City. We are - of course - particularly interested in profiles in Computational Social Science, Network Science, Data Science, and related fields. The application deadline is June 1st. www.jobs.ac.uk/job/DMY889/l...

Together with Jing Zeng and @rupertkiddle.com we're guest editing a special issue of the Journal of #Computational #Communication Research on "Computational Approaches to Researching Short Videos": journal.computationalcommunication.org/announcement...

Great experience in Sydney at #WWW2025! Today I presented the paper "Causal modeling of climate activism on Reddit", the work done during my visiting period in Copenhagen with the amazing team @c0rrad0.bsky.social, @lajello.bsky.social, @gdfm.bsky.social! dl.acm.org/doi/10.1145/...

Our work on measuring participation in collective action has been accepted to #ICWSM 2025! Check out the paper and models, and see you in Copenhagen 🇩🇰

Finally, the preprint+Python package "neatnet" is out: https://arxiv.org/abs/2504.16198 https://github.com/uscuni/neatnet If you are working with street/planar/spatial networks, this will solve *so* many problems! Many of my projects had this bottleneck - […] [Original post on datasci.social]

New preprint on the global state of political polarization research 🎉 osf.io/preprints/os... We discuss the many different ways polarization can be conceptualised, how it manifests very differently across countries and domains, and the problems with the dominance of US focused research.

A conversation on our work on the destructive effect of urban highways on social ties (www.pnas.org/doi/10.1073/...). Thanks @acbowen.bsky.social for the lovely chat!

Yesterday @lajello.bsky.social and I had the opportunity to present our work on the language of collective action at the CSS Seminar Series at @uu.se 🇸🇪 Big thanks to Matteo Magnani and @dvladek.bsky.social for inviting us, and to the whole UUInfolab for the warm welcome and insightful conversations!

Wednesday's Most Read # 2 - Here’s more proof that highways are terrible for cities bit.ly/3FOVTo6 Fast Company @lajello.bsky.social

Luca Maria Aiello becomes Full Professor nerds.itu.dk/2025/04/01/luca-m Congratulations Luca @lajello.bsky.social, well deserved! 🎉👨‍🏫

🚨 Deadline Extended! 🚨 "DETOX: countering the degradation of social media" at @icwsm.bsky.social invites researchers to explore how users resist digital inequality and platform centralization. Submit your work and join us in Copenhagen!🚲🥐 📅 New deadline: April 14 🔗 More info: tinyurl.com/yy859eyt

📢 Call for PhD and Postdocs: Using data science to improve epidemic preparedness nerds.itu.dk/2025/03/25/c... We are looking for Phds and Postdocs to join @jonassjuul.bsky.social at @itu.dk in Copenhagen improving inference, forecasting, and mitigation in future pandemics. Deadline May 1st.

🚨 We’re happy to announce the keynote speaker for our workshop "Detox: Countering the Degradation of Social Media" at @icwsm.bsky.social : 🎤 Max Falkenberg @maxfalken.bsky.social from the Department of Network and Data Science, Central European University, Vienna! ⏰ Submit before March 31, 2025!

🚨 #CySoc2025 Program Shaping Up Nicely! We’re excited to announce key highlights from the International Workshop on Cyber Social Threats at #ICWSM2025 @icwsm.bsky.social 📢 and Call for Papers is still open! 📆 Submission Deadline: March 31, 2025 🔗 More: cy-soc.github.io/2025/ For more: 🧵 1/6 👇

Open postdoc position at @ceu-dnds.bsky.social in Vienna in the Computational Human Dynamics Lab of @martonkarsai.bsky.social on inequalities in 15-minutes cities in collaboration with www.dut-coline.org. Check it out: careers.ceu.edu/job/Vienna-P... @ic2s2.bsky.social @netscisociety.bsky.social

Rutgers Artificial Intelligence and Data Science (RAD) Collaboratory has a call for postdocs. If you are interested in this and want to work with me, please let me know and we can work together to submit a letter. link to the job: jobs.rutgers.edu/postings/243... Deadline: Apr 1

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/🧵