Michele Tizzoni
@mtizzoni.bsky.social
📤 1290
📥 375
📝 120
Associate professor at Uni Trento. Infectious disease modeling | computational social science.
pinned post!
🎉 Today, our perspective on "Using mobility data to quantify experienced urban inequalities" is finally published in Nature Human Behavior. I am honored to be listed among many stellar coauthors and thankful for their valuable insights.
www.nature.com/articles/s41...
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Using human mobility data to quantify experienced urban inequalities - Nature Human Behaviour
Xu et al. review applications of urban mobility behaviour data and propose a temporal bipartite network that reveals mobility patterns between people and places. It helps to track urban inequalities i...
https://www.nature.com/articles/s41562-024-02079-0
7 months ago
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Epidemic amplification by correlated superspreading
arxiv.org/abs/2509.15338
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Epidemic amplification by correlated superspreading
Infectious pathogens often propagate by superspreading, which focusses onward transmission on disproportionately few infected individuals. At the same time, infector-infectee pairs tend to have more s...
https://arxiv.org/abs/2509.15338
about 14 hours ago
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Jamie Cummins
5 days ago
Can large language models stand in for human participants? Many social scientists seem to think so, and are already using "silicon samples" in research. One problem: depending on the analytic decisions made, you can basically get these samples to show any effect you want. THREAD 🧵
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The threat of analytic flexibility in using large language models to simulate human data: A call to attention
Social scientists are now using large language models to create "silicon samples" - synthetic datasets intended to stand in for human respondents, aimed at revolutionising human subjects research. How...
https://arxiv.org/abs/2509.13397
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Delegation to artificial intelligence can increase dishonest behaviour
www.nature.com/articles/s41...
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Delegation to artificial intelligence can increase dishonest behaviour - Nature
People cheat more when they delegate tasks to artificial intelligence, and large language models are more likely than humans to comply with unethical instructions—a risk that can be minimized by ...
https://www.nature.com/articles/s41586-025-09505-x
5 days ago
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Kai Kupferschmidt
10 days ago
The
@nytimes.com
has rarely felt as hopelessly out of its depth as in the past two days or so. There is still much I admire, many journalists I respect and trust, but on the Charlie Kirk assassination it simply hasn’t been very informative - not to mention some atrocious opinion “journalism”.
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The Computational Foundations of Collective Intelligence
arxiv.org/abs/2509.07999
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The Computational Foundations of Collective Intelligence
Why do collectives outperform individuals when solving some problems? Fundamentally, collectives have greater computational resources with more sensory information, more memory, more processing capaci...
https://arxiv.org/abs/2509.07999
11 days ago
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Michele Tizzoni
13 days ago
3-year Responsible AI PhD studentships @ Politecnico di Torino (Turin) Focus: Responsible AI, computational social science, urban AI, climate, future of work. Start Mar 2026 (or earlier). Apply by 20 Sept 2025 →
[email protected]
(subject: “PhD studentships”). Please share!
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Atul Gawande
22 days ago
9 CDC Directors going back to 1977 speak out. What RFK Jr has done to our nation’s public health system "should alarm every American." It "is unlike anything we have ever seen at the agency, and unlike anything our country has ever experienced."
www.nytimes.com/2025/09/01/o...
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Opinion | We Ran the C.D.C.: Kennedy Is Endangering Every American’s Health
https://www.nytimes.com/2025/09/01/opinion/cdc-leaders-kennedy.html?unlocked_article_code=1.ik8.2JQu.qplPe_508KkD&smid=url-share
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Matteo Scianna
about 1 month ago
📣🚨 New work out on
@plos.org
Computational Biology! Excited and proud to have provided the world with more maps of Puglia🕷️ Thank you all
@luzuzek.bsky.social
Oriol Artime
@ricgallotti.bsky.social
@mtizzoni.bsky.social
journals.plos.org/ploscompbiol...
💊main results below👇
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Comparing the effectiveness of ring and block-vaccination strategies on networks
Author summary Infectious diseases such as measles and Ebola have shown how quickly outbreaks can spread and how essential vaccination is to protect individuals. In our work, we investigate a spectrum...
https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1013274
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Socioeconomic determinants of protective behaviors and contact patterns in the post-COVID-19 pandemic era: A cross-sectional study in Italy
Author summary COVID-19 outcomes have been shown to vary across different socioeconomic groups, but the mechanisms by which socioeconomic conditions influence transmission are not yet fully understood...
https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1013262
about 2 months ago
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Human Mobility in Epidemic Modeling
www.arxiv.org/abs/2507.22799
great work by
@pholme.bsky.social
and collaborators
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Human Mobility in Epidemic Modeling
Human mobility forms the backbone of contact patterns through which infectious diseases propagate, fundamentally shaping the spatio-temporal dynamics of epidemics and pandemics. While traditional mode...
https://www.arxiv.org/abs/2507.22799
about 2 months ago
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Michele Tizzoni
NetScience
about 2 months ago
Assessing the risk of diseases with epidemic and pandemic potential in a changing world | Science Advances
www.science.org/doi/10.1126/...
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Assessing the risk of diseases with epidemic and pandemic potential in a changing world
Human activities increase zoonotic disease risk.
https://www.science.org/doi/10.1126/sciadv.adw6363
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Michele Tizzoni
Toni Rodon
about 2 months ago
Faculty publication rates peak before tenure. Post-tenure, output stays high in lab-based fields but drops in others (i.e. sociology) and faculty produce more novel work but fewer highly cited papers
www.pnas.org/doi/10.1073/...
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Tenure and research trajectories | PNAS
Tenure is a cornerstone of the US academic system, yet its relationship to faculty research trajectories remains poorly understood. Conceptually, t...
https://www.pnas.org/doi/10.1073/pnas.2500322122
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Michele Tizzoni
Vermont Complex Systems Institute
2 months ago
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
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Michele Tizzoni
International Conference on Computational Social Science
2 months ago
Day 2 Keynotes kicked off with Laura Nelson's inspiring presentation, “Why Qualitative Research Needs Computational Social Science”. What is the state of this maturing field called qualitative computational methods? What are the ongoing debates and futures?
#ic2s2
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Michele Tizzoni
International Conference on Computational Social Science
2 months ago
Parallel sessions are underway, with multiple tracks covering network dynamics, LLMs, mobility and urban science, political narratives, and more. Scan the program, join the talks that excite you, and share your insights with the community
#ic2s2
.
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Gianmarco De Francisci Morales
2 months ago
Causality center stage at
#ic2s2
with opening keynote by
@eckles.bsky.social
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Opinion dynamics: Statistical physics and beyond
arxiv.org/abs/2507.11521
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Opinion dynamics: Statistical physics and beyond
Opinion dynamics, the study of how individual beliefs and collective public opinion evolve, is a fertile domain for applying statistical physics to complex social phenomena. Like physical systems, soc...
https://arxiv.org/abs/2507.11521
2 months ago
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Michele Tizzoni
Matt DeVerna
2 months ago
arxiv.org/abs/2506.06576
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Future of Work with AI Agents: Auditing Automation and Augmentation Potential across the U.S. Workforce
The rapid rise of compound AI systems (a.k.a., AI agents) is reshaping the labor market, raising concerns about job displacement, diminished human agency, and overreliance on automation. Yet, we lack ...
https://arxiv.org/abs/2506.06576
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Michele Tizzoni
Dr. Casey Fiesler
2 months ago
This is fascinating:
www.reddit.com/r/OpenAI/s/I...
Someone “worked on a book with ChatGPT” for weeks and then sought help on Reddit when they couldn’t download the file. Redditors helped them realized ChatGPT had just been roleplaying/lying and there was no file/book…
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From the OpenAI community on Reddit
Explore this post and more from the OpenAI community
https://www.reddit.com/r/OpenAI/s/I7Qbvo3I95
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Great work by Yuhan Li,
@ngozzi.bsky.social
and
@netscience.bsky.social
just published in PLOS Comp Bio: Estimating behavioural relaxation induced by COVID-19 vaccines in the first months of their rollout.
journals.plos.org/ploscompbiol...
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Estimating behavioural relaxation induced by COVID-19 vaccines in the first months of their rollout
Author summary The COVID-19 vaccines rollout initially faced significant challenges. Non-pharmaceutical interventions (NPIs) complemented vaccinations in addressing these issues. However, the interpla...
https://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1013266
3 months ago
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Michele Tizzoni
Sander Wagner
3 months ago
The scale of US cancelled research grants versus the additional money being made available to allow US researchers to move to Europe.
www.nature.com/articles/d41...
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Michele Tizzoni
Simone Centellegher
3 months ago
🚀Job loss disrupts individuals’ mobility and their exploratory patterns🚀 Thanks to a great collaboration with
@marcodena.bsky.social
,
@marcotonin.bsky.social
, Bruno Lepri and
@lorenzolucchini.bsky.social
our latest study is finally out in iScience!
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Michele Tizzoni
Lucila Álvarez-Žužek
3 months ago
So excited to see this come together! 🎉 Our latest study explores the interplay between science and misinformation in public debates during COVID-19 🔍
arxiv.org/abs/2507.01481
👇Take a look
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Michele Tizzoni
Duncan Weldon
3 months ago
A very good, and rather sad, Big Read on children and reading from
@emmavj.bsky.social
on.ft.com/4krOKZA
How to get children reading again
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Michele Tizzoni
estebanmoro
3 months ago
Netmob 2025 abstract submission deadline was extended until July 7th!
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NetScience
3 months ago
A foundation model to predict and capture human cognition
www.nature.com/articles/s41...
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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...
https://www.nature.com/articles/s41586-025-09215-4
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Michele Tizzoni
ArXiv Paper Poster (cs.SI & ph-soc)
3 months ago
Satellite and Mobile Phone Data Reveal How Violence Affects Seasonal Migration in Afghanistan
https://arxiv.org/abs/2507.00279
Seasonal migration plays a critical role in stabilizing rural economies and sustaining the livelihoods of agricultural households. Violence and civil conflict have lo...📈🤖
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www.nature.com/articles/s41...
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Charting multidimensional ideological polarization across demographic groups in the USA - Nature Human Behaviour
Ojer et al. use data from the American National Election Studies to map US voters in a two-dimensional ideological space. Democrats and Republicans have grown more polarized over the past 30 years, wh...
https://www.nature.com/articles/s41562-025-02251-0
3 months ago
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Michele Tizzoni
NetScience
3 months ago
Relationship between household attributes and contact patterns in urban and rural South Africa
arxiv.org/abs/2503.22239
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Relationship between household attributes and contact patterns in urban and rural South Africa
Households play a crucial role in the propagation of infectious diseases due to the frequent and prolonged interactions that typically occur between their members. Recent studies advocated for the imp...
https://arxiv.org/abs/2503.22239
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Michele Tizzoni
ArXiv Paper Poster (cs.SI & ph-soc)
3 months ago
Quantifying Institutional Gender Inequality in Contemporary Visual Art
https://arxiv.org/abs/2506.22103
From disparities in the number of exhibiting artists to auction opportunities, there is evidence of women's under-representation in visual art. Here we explore the exhibition history and au...📈🤖
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Michele Tizzoni
Mario Seminerio
3 months ago
Storie di ordinaria follia della burocrazia italiana:
www.chiesaluterana.it/otto-per-mil...
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Otto per mille: chi paga il prezzo degli errori se lo Stato non chiarisce? - Chiesa Luterana
Errori non chiariti e responsabilità rovesciate: il caso CELI e il paradosso fiscale che mina la fiducia democratica.
https://www.chiesaluterana.it/otto-per-mille-chi-paga-il-prezzo-degli-errori-se-lo-stato-non-chiarisce/
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Michele Tizzoni
Andrea Baronchelli
3 months ago
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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Michele Tizzoni
Luca Maria Aiello
3 months ago
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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Michele Tizzoni
Luca Maria Aiello
3 months ago
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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Luca Maria Aiello
3 months ago
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
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Michele Tizzoni
Vittoria Colizza
3 months ago
First SUMOC talk ✨ Prof. Mauricio Santillana (Northeastern University) on forecasting outbreaks using mathematical models & internet-based data - lessons from COVID-19.
#SUMOC
@sorbonne-universite.fr
@fac-sante-sorbonne.bsky.social
@inserm.fr
add a skeleton here at some point
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Michele Tizzoni
Nicholas A. Christakis
3 months ago
People not only form social networks, they construct mental maps of them. People think about the ties between other people, including ties among individuals to whom they are not themselves directly connected. These “cognitive social networks” have rarely been studied. 1/
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Francesca Colaiori
3 months ago
Only a few days left to submit your abstract to the BeSafe Satellite Workshop
@ccs2005.bsky.social
. Details & submission:
www.code-project.it/besafe/
Participate and feel free to spread the word. For any questions email:
[email protected]
.
@sarawalk.bsky.social
@frapierri.bsky.social
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BeSAFE
BeSAFE: Behavioral and Social Aspects in Fighting Epidemics
https://www.code-project.it/besafe/
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Michele Tizzoni
ArXiv Paper Poster (cs.SI & ph-soc)
3 months ago
Who is using AI to code? Global diffusion and impact of generative AI
https://arxiv.org/abs/2506.08945
Generative coding tools promise big productivity gains, but uneven uptake could widen skill and income gaps. We train a neural classifier to spot AI-generated Python functions in 80 million ...📈🤖
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Michele Tizzoni
IFISC
3 months ago
📢 IFISC (UIB-CSIC) in Mallorca is offering up to 4 postdoctoral positions in complex systems science! 🔍 Topics: social systems, unconventional computing, life & environment. 📅 Deadline: 20/10/2025 🔗 Details:
ifisc.uib-csic.es/en/about-ifi...
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The deadline for submission is extended until June 10! Send your best work and join us in Siena at CCS!
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4 months ago
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Michele Tizzoni
Elizabeth Wrigley-Field
4 months ago
For 40 years, Americans have lived shorter lives than people in other rich countries. For 10 years, that's been rapidly getting worse. New research: in 2022-2023, there were 1.5 million "missing Americans," who died--but wouldn't have, if America didn't have such uniquely high death rates.
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Excess US Deaths Before, During, and After the COVID-19 Pandemic
This cohort study examines trends in excess deaths in the US before, during, and after the COVID-19 pandemic.
https://jamanetwork.com/journals/jama-health-forum/fullarticle/2834281
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Michele Tizzoni
NetMob 2025
4 months ago
You are invited to NetMob 2025! 😎🙌
#conference
#network
#data
#paris
#france
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Super-interesting work on how people from different SES interact with LLMs.
arxiv.org/abs/2505.12158
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The AI Gap: How Socioeconomic Status Affects Language Technology Interactions
Socioeconomic status (SES) fundamentally influences how people interact with each other and more recently, with digital technologies like Large Language Models (LLMs). While previous research has high...
https://arxiv.org/abs/2505.12158
4 months ago
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Michele Tizzoni
Network Science Society
4 months ago
In just a couple of days, the grand finale of the NetSci Colloquia of this academic year, with none other than living legend Alain Barrat. Register here:
iu.zoom.us/webinar/regi...
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Emergence of human-like polarization among large language model agents
arxiv.org/abs/2501.05171
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Emergence of human-like polarization among large language model agents
Rapid advances in large language models (LLMs) have not only empowered autonomous agents to generate social networks, communicate, and form shared and diverging opinions on political issues, but have ...
https://arxiv.org/abs/2501.05171
4 months ago
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Michele Tizzoni
ISI Foundation
4 months ago
🔵 Che fare? Webfare! 📅 22 maggio 2025 | 🕤 ore 9:30 📍 Aula Magna Cavallerizza Reale, Torino Domani
@ccattuto.bsky.social
,
@isi.it
Scientific Director, parteciperà al convegno "Che fare? Webfare!", dedicato al ruolo dei dati e dell'AI nella costruzione di un nuovo welfare digitale, inclusivo e umano.
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Michele Tizzoni
Nature Human Behaviour
4 months ago
This new paper finds that GPT-4 outperforms humans in debates when prompted with basic sociodemographic data.
@frasalvi.bsky.social
@manoelhortaribeiro.bsky.social
@ricgallotti.bsky.social
www.nature.com/articles/s41...
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On the conversational persuasiveness of GPT-4 - Nature Human Behaviour
Salvi et al. find that GPT-4 outperforms humans in debates when given basic sociodemographic data. With personalization, GPT-4 had 81.2% higher odds of post-debate agreement than humans.
https://www.nature.com/articles/s41562-025-02194-6
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Michele Tizzoni
NetScience
4 months ago
Still a few spots available to attend Charting Complexity, a conference dedicated to exploring the power of Complex Systems Science (London 10-12 of June). Program:
chartingcomplexity.webflow.io
. If you like to attend, express your interest here:
forms.gle/qFs4vuauYXwp...
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Michele Tizzoni
Andrea Baronchelli
4 months ago
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
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