Lightnews — Scholar-powered news

Thomas Louf @tlouf.bsky.social · Sep 15

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 :)))

2 19

Reposted by Thomas Louf

Luca Gallo @lgajo.bsky.social · Sep 4

@abbasrizi.bsky.social on stage talking about homophily within and across groups #CCS2025

1 2 8

Reposted by Thomas Louf

Luca Gallo @lgajo.bsky.social · Sep 4

The satellite on Computational Social Science is starting in room 13. @lajello.bsky.social is our first speaker. Join us! #ccs2025

2 5

Reposted by Thomas Louf

Complex Human Behaviour Lab @chub-fbk.bsky.social · Sep 3

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

1 6 7

Reposted by Thomas Louf

Complexity Cat 🐱 @amahury.bsky.social · Sep 2

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

2 2

Reposted by Thomas Louf

Elisa Muratore @elisamurators.bsky.social · Sep 1

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 – see you all there! ☀️

Conference on Complex Systems @css-conference.bsky.social · Sep 1

Today’s Poster Session in pictures – thank you to all presenters!

3 11

Reposted by Thomas Louf

Chiara Zappalà @chiarazappala.bsky.social · Jul 30

📣 𝗟𝗮𝘀𝘁 𝗸𝗲𝘆𝗻𝗼𝘁𝗲 𝗿𝗲𝘃𝗲𝗮𝗹!

We're honored to host Cristian Candia as a keynote speaker at our #ComputationalSocialScience Satellite, taking place during #CCS2025!

📍Siena, Italy
📅Sep 4

💡Fuel your curiosity with science you'll remember!

1 3 3

Reposted by Thomas Louf

Chiara Zappalà @chiarazappala.bsky.social · Jul 17

📌 𝗦𝗮𝘃𝗲 𝘁𝗵𝗲 𝗱𝗮𝘁𝗲!

We're proud to welcome Kyriaki Kalimeri @kyriakikalimeri.bsky.social as a keynote speaker at our #ComputationalSocialScience Satellite, taking place during #CCS2025!

📍Siena, Italy
📅 Sep 4

💡Discover how data can drive good, and stay for the insight!

1 2 8

Thomas Louf @tlouf.bsky.social · Jul 11

We'll gladly take any feedback on the work, don't hesitate to reach out! 🤗

As always, code and aggregated data openly available 👐
osf.io/n6j8g/

Socio-economic and linguistic boundaries

Hosted on the Open Science Framework

osf.io

1

Thomas Louf @tlouf.bsky.social · Jul 11

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.

1

Thomas Louf @tlouf.bsky.social · Jul 11

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 🫶

1

Thomas Louf @tlouf.bsky.social · Jul 11

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).

1 1

Thomas Louf @tlouf.bsky.social · Jul 11

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.

1

Thomas Louf @tlouf.bsky.social · Jul 11

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 🔽

1

Thomas Louf @tlouf.bsky.social · Jul 11

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.

1

Thomas Louf @tlouf.bsky.social · Jul 11

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

Free AI Grammar Checker - LanguageTool

Instantly check grammar, punctuation, and spelling errors with LanguageTool's AI-powered grammar checker. Enhance your writing in over 30 languages with ease.

languagetool.org

1

Thomas Louf @tlouf.bsky.social · Jul 11

Our latest work with @martonkarsai.bsky.social, David Sánchez and José Ramasco just got published! (and open access)

Here's a short thread to give you our main results ⏬

NetScience @netscience.bsky.social · Jul 11

When dialects collide: how socioeconomic mixing affects language use epjdatascience.springeropen.com/articles/10....

When dialects collide: how socioeconomic mixing affects language use - EPJ Data Science

The socioeconomic background of people and how they use standard forms of language are not independent, as demonstrated in various sociolinguistic studies. However, the extent to which these correlati...

epjdatascience.springeropen.com

1 4 19

Reposted by Thomas Louf

Chiara Zappalà @chiarazappala.bsky.social · Jul 10

⭐ 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.

1 3 18

Reposted by Thomas Louf

Chiara Zappalà @chiarazappala.bsky.social · Jul 3

🎤 𝗘𝘅𝗰𝗶𝘁𝗶𝗻𝗴 𝗡𝗲𝘄𝘀!

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!

📍Siena, Italy

📅 Sep 4

💡Come for the science, stay for the inspiration!

1 2 6

Reposted by Thomas Louf

Complex Human Behaviour Lab @chub-fbk.bsky.social · Jun 25

🚨If 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

1 3 2

Reposted by Thomas Louf

Ulysse Marquis @ulyssemarquis.bsky.social · Jun 16

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

Universal roughness and the dynamics of urban expansion

We present a new approach to quantify urban sprawl using tools from surface growth physics. Analyzing built-up area expansion in 19 cities (1985-2015), we uncover anisotropic growth with branch-like e...

arxiv.org

1 4 10

Thomas Louf @tlouf.bsky.social · Jun 16

🚨 Deadline is this Friday (23:59 CET), remember to submit your works to join us in Siena!

Thomas Louf @tlouf.bsky.social · May 5

The Computational Social Science satellite of the @css-conference.bsky.social is back for its 13th edition.

📅 Submit your work by June 20th for a chance to present it in a talk at the event!

👇 More details on our page 👇

🛰️ sites.google.com/view/css-ccs

CSS@CCS

About

sites.google.com

2 3

Reposted by Thomas Louf

Complex Human Behaviour Lab @chub-fbk.bsky.social · Jun 13

Summer vibes in Trento ☀️

perfect for a CHuB-day at the Caldonazzo lake ⛰️🏖️

@ricgallotti.bsky.social @luzuzek.bsky.social @tlouf.bsky.social @andreaguizzo.bsky.social @ulyssemarquis.bsky.social

4 6

Reposted by Thomas Louf

Young Researchers of the Complex Systems Society @yrcss.bsky.social · May 12

🌍 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 29–30, two days of fun, networking & activities designed for young researchers!
🛏️ Optional accommodation
📍 Limited spots!
💶 Registration: 55€
🔗 Apply: forms.gle/DxatcCQt4LBk...

forms.gle

8 9

Reposted by Thomas Louf

Young Researchers of the Complex Systems Society @yrcss.bsky.social · May 8

📢 Early-Career researchers! Did your abstract for @css-conference.bsky.social get accepted, but you're struggling to find funding? ✨Apply for our special CCS - SECS grants!✨ Applications are open until June 30th. 💸

yrcss.cssociety.org/grants/secs/

SECS

Young Researchers of the Complex Systems Society

yrcss.cssociety.org

6 2