๐จ yrCSS Advisory Board Elections are Open! ๐จ
Be part of shaping the future of yrCSS! Access the Ballot platform in your CSS account profile and apply now to become a member ๐ณ๏ธ Applications accepted until Feb 21th. More info โก๏ธ yrcss.cssociety.org/elections/
But I thought social scientists could just study LLMs now.
Are you a young researcher in Complex Systems?
Do you need financial support to present your research at a Complex Systems conference/Workshop?
Or to visit another researcher and collaborate on an innovative project?
Our grants are back!
Our work on the dynamics of urban expansion just got published in the Physical Review Letters ! journals.aps.org/prl/abstract...
The UC3M campus
Super happy to share that, after two great years @chub-fbk.bsky.social, I've just joined @uc3m.es and the GISC as an assistant prof in applied maths :)))
@abbasrizi.bsky.social on stage talking about homophily within and across groups #CCS2025
The satellite on Computational Social Science is starting in room 13. @lajello.bsky.social is our first speaker. Join us! #ccs2025
Wide coverage of social media and disinformation analysis yesterday from our lab at the @css-conference.bsky.social, with four talks presenting our works associate to the European projects #AI4TRUST #AICODE_EU #HATEDEMICS
Finishing the social media session, @tlouf.bsky.social explores Telegram as a weighted, directed temporal network. His methodology reveals clustering, burstiness, and assortativity, all of them phenomena that are relevant when building reliable agent-based models.
#CCS2025
Great energy at the poster session today! It was a pleasure to be part of it presenting our work "How to design a collection strategy for monitoring disinformation and hate speech in Telegram".
Excited for round two tomorrow โ see you all there! โ๏ธ
๐ฃ ๐๐ฎ๐๐ ๐ธ๐ฒ๐๐ป๐ผ๐๐ฒ ๐ฟ๐ฒ๐๐ฒ๐ฎ๐น!
We're honored to host Cristian Candia as a keynote speaker at our #ComputationalSocialScience Satellite, taking place during #CCS2025!
๐Siena, Italy
๐
Sep 4
๐กFuel your curiosity with science you'll remember!
๐ ๐ฆ๐ฎ๐๐ฒ ๐๐ต๐ฒ ๐ฑ๐ฎ๐๐ฒ!
We're proud to welcome Kyriaki Kalimeri @kyriakikalimeri.bsky.social as a keynote speaker at our #ComputationalSocialScience Satellite, taking place during #CCS2025!
๐Siena, Italy
๐
Sep 4
๐กDiscover how data can drive good, and stay for the insight!
We'll gladly take any feedback on the work, don't hesitate to reach out! ๐ค
As always, code and aggregated data openly available ๐
osf.io/n6j8g/
So with such simple mechanisms controlled by just 3 parameters, we're able to quite nicely reproduce the effect we observed: socioeconomic mixing smooths out this dialectal difference between classes.
We show analytically that increased mixing does make different classes converge on their dialect usage. And since it's an ABM, we can simulate agents moving around according to actual mobility patterns, and again we found one of these nice straight lines we all love ๐ซถ
That's why we proposed some basic mechanisms that could explain this, in the form of an agent-based model. Use of a variety depends on how prestigious the standard form is (s), how much the poorer class prefers non-standard (q1), and how much the richer prefer standard (q2).
What this plot shows is that the more different classes mix with one another (low assortativity), the less their use of non-standard language will depend on their class of origin. This is really remarkable (to us at least!), so we wanted to understand further.
This was really surprising to us, so we had to understand where these differences could be coming from! That's when we thought of looking at how much people of different classes mix in each of these cities. And what we found is this very nice line ๐ฝ
This gives a nice proxy for the tendency of Twitter users to use non-standard English. And what we found were smaller correlations than we expected, but more crucially, widely different ones from one metropolitan area of England to the other.
The question that triggered this work was: how inter-dependent are socioeconomic status and deviations from standard language?
One cool aspect of the method is that we used a local version of LanguageTool to compute the frequencies of deviations from standard grammar in tweets.
languagetool.org
Our latest work with @martonkarsai.bsky.social, David Sรกnchez and Josรฉ Ramasco just got published! (and open access)
Here's a short thread to give you our main results โฌ
โญ ๐ ๐ฎ๐ฟ๐ธ ๐๐ผ๐๐ฟ ๐ฐ๐ฎ๐น๐ฒ๐ป๐ฑ๐ฎ๐ฟ๐!
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!
๐Siena, Italy
๐
Sep 4
๐กCome curious, leave inspired.
๐ค ๐๐
๐ฐ๐ถ๐๐ถ๐ป๐ด ๐ก๐ฒ๐๐!
We're thrilled to announce that Cesar Hidalgo @cesifoti.bsky.social will be joining us as a keynote speaker at our #ComputationalSocialScience Satellite, taking place during #CCS2025!
๐Siena, Italy
๐
Sep 4
๐กCome for the science, stay for the inspiration!
๐จIf you're around Paris come to see @tlouf.bsky.social talking today about the structure and dynamics of information flow on Telegram at @sunbelt2025paris.bsky.social and @css-fr.bsky.social
How do cities expand?
Using surface growth physics, we found a unique exponent governing their local geometry. Instead, their dynamics range from smooth diffusion to abrupt coalescence, with demographic pressure driving where each city lands on that spectrum.
arxiv.org/abs/2506.10656
๐จ Deadline is this Friday (23:59 CET), remember to submit your works to join us in Siena!
Summer vibes in Trento โ๏ธ
perfect for a CHuB-day at the Caldonazzo lake โฐ๏ธ๐๏ธ
@ricgallotti.bsky.social @luzuzek.bsky.social @tlouf.bsky.social @andreaguizzo.bsky.social @ulyssemarquis.bsky.social
๐ Are you a young researcher heading to #CCS2025 in Siena?
Join us a few days earlier and enjoy the Warm-Up by yrCSS on Aug 29โ30, two days of fun, networking & activities designed for young researchers!
๐๏ธ Optional accommodation
๐ Limited spots!
๐ถ Registration: 55โฌ
๐ Apply: forms.gle/DxatcCQt4LBk...
