Vincent Gauthier
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vincentgauthier.bsky.social
Vincent Gauthier
@vincentgauthier.bsky.social
50 followers 130 following 3 posts
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Reposted by Vincent Gauthier
louisboucherie.com
* Decoupling geographical constraints from human mobility *

🌍🚶 How much of our movement is about human choice and how much is constrained by geography and the spatial layout of locations?

Our paper (out in Nature Human Behavior) gives you a practical way to tell:

www.nature.com/articles/s41...
September 1, 2025 at 9:16 AM
Reposted by Vincent Gauthier
estebanmoro.bsky.social
How fair are the algorithms that decide who gets information online? Our new paper in PNAS Nexus shows that maximization algorithms, the ones used to pick “influencers” in social networks, unintentionally deepen inequality.

🧠 Sekara, Dotu, Cebrian, Moro & García-Herranz
🔗 doi.org/10.1093/pnas...
Detecting bias in algorithms used to disseminate information in social networks and mitigating it using multiobjective optimization
Abstract. Social connections are conduits through which individuals communicate, information propagates, and diseases spread. Identifying individuals who a
doi.org
October 31, 2025 at 1:39 PM
Reposted by Vincent Gauthier
manoelhortaribeiro.bsky.social
Social media feeds today are optimized for engagement, often leading to misalignment between users' intentions and technology use.

In a new paper, we introduce Bonsai, a tool to create feeds based on stated preferences, rather than predicted engagement.

arxiv.org/abs/2509.10776
September 16, 2025 at 1:24 PM
Reposted by Vincent Gauthier
netmob2025.bsky.social
Don't miss this chance!!! 🇫🇷
netmob.org/www25/
v4.event-vert.org/en/netmob2025/
September 16, 2025 at 8:57 AM
Reposted by Vincent Gauthier
quad9dns.bsky.social
#ICYMI the Quad9 Event Dashboard (QED) & Globe of Wonder tool were part of the Internet Visualization Exhibition (IVE) at #SIGCOMM25.

Learn more about the tool and how we use it from John's video: youtu.be/J7_Z2kROVyw?...

You can find the tool on our github github.com/Quad9DNS/Glo...

#infosec
QED Overview - SIGCOMM25
YouTube video by Quad9 DNS
youtu.be
September 17, 2025 at 4:49 PM
Reposted by Vincent Gauthier
nature.com
Nature research paper: Epidemiology models explain rumour spreading during France’s Great Fear of 1789

go.nature.com/4p2RjF1
Epidemiology models explain rumour spreading during France’s Great Fear of 1789 - Nature
Epidemiological methods are used to show that the Great Fear of 1789, a series of peasant insurrections in rural revolutionary France, was driven by deliberate political action rather than spontaneous fear.
go.nature.com
August 27, 2025 at 4:58 PM
Reposted by Vincent Gauthier
arstechnica.com
We're probably doomed to endless toxic feedback loops unless someone hits upon a brilliant fundamental redesign that manages to change social media's core dynamics.
Study: Social media probably can’t be fixed
“The [structural] mechanism producing these problematic outcomes is really robust and hard to resolve.”…
arstechnica.com
August 13, 2025 at 5:50 PM
Reposted by Vincent Gauthier
sync-in.bsky.social
Just launched Sync-in — a secure, open-source platform to store, sync, and collaborate on files.

Privacy-first, self-hostable, supports real-time editing !

Designed for individuals, teams, and organizations.

👉 sync-in.com/blog/sync-in...

#opensource #selfhosted #privacy #collaboration
Sync-in is out 🎉 | Sync-in
It is with great satisfaction that I announce the release of Sync-in, an open-source, reliable, and secure platform to share, collaborate,
sync-in.com
July 15, 2025 at 2:32 PM
Reposted by Vincent Gauthier
netscience.bsky.social
Scaling and Multi-scaling Laws and Meta-Graph Reconstruction in Laplacian Renormalization of Complex Networks arxiv.org/abs/2507.08893
Scaling and Multi-scaling Laws and Meta-Graph Reconstruction in Laplacian Renormalization of Complex Networks
The renormalization group (RG) method in spectral space (SS) has recently emerged as a compelling alternative to traditional RG approaches in real space (RS) and momentum space (MS). Leveraging the in...
arxiv.org
July 16, 2025 at 1:24 PM
Reposted by Vincent Gauthier
isoc-pulse.bsky.social
The recent events show Egypt's very poor ISP market competition and dependence on a dominant local upstream provider is affecting its overall Internet resilience. Read our analysis pulse.internetsociety.org/blog/egypt-i...
July 9, 2025 at 9:20 AM
Reposted by Vincent Gauthier
aaronclauset.bsky.social
Slides from my keynote lecture "What drives the productivity of scientific labor?" at the 2025 Oxford Summer School on Economic #Networks. Part 2 of 2: how does who you collaborate with shape your own productivity, and how are networks like social capital? aaronclauset.github.io/slides/Claus...
Slide titled 'network effects in scientific labor', arguing that your own productivity is a network effect, because it includes the productivity of your coauthors too Slide showing a worked example of a collaboration network, and using a probabilistic model to marginalize the network effects of collaboration to estimate individual productivity (without network effects) Slides showing results of applying the network effect model showing that collaborating with a highly productive or highly prominent coauthor in your early career has a lasting effect on your own productivity and prominence, suggesting that social capital (network effects) are a kind of semi-transferrable form of wealth Slides describing a network analysis of homophily in collaboration networks, showing that diversity in collaborators is a learned tendency, and mid-career researchers who trained in highly diverse research groups go on to lead relatively more diverse groups themselves
June 24, 2025 at 9:35 PM
Reposted by Vincent Gauthier
netscience.bsky.social
Initialisation and Network Effects in Decentralised Federated Learning arxiv.org/abs/2403.15855
Initialisation and Network Effects in Decentralised Federated Learning
Fully decentralised federated learning enables collaborative training of individual machine learning models on a distributed network of communicating devices while keeping the training data localised ...
arxiv.org
May 24, 2025 at 9:49 AM
Reposted by Vincent Gauthier
netscience.bsky.social
Universal expansion of human mobility across urban scales arxiv.org/abs/2406.06889
Universal expansion of human mobility across urban scales
Human mobility is a fundamental process underpinning socioeconomic life and urban structure. Classic theories, such as egocentric activity spaces and central place theory, provide crucial insights int...
arxiv.org
May 24, 2025 at 9:52 AM
vincentgauthier.bsky.social
Farreed's take: youtu.be/0Qk4FBS73Ts?...
Fareed’s Take: Trump is gutting what made American science great
YouTube video by CNN
youtu.be
April 27, 2025 at 8:58 PM
Reposted by Vincent Gauthier
manlius.bsky.social
Using 🐁watching "The Matrix", scientists have reconstructed the largest and most detailed wiring diagram of a mammalian brain to date, by mapping cells in a cubic millimetre of a mouse’s brain tissue.

82k neurons, 500 million synapses

#Neuroscience 🧪🧠

www.nature.com/articles/s41...
April 9, 2025 at 7:49 PM
Reposted by Vincent Gauthier
manlius.bsky.social
🚨 Just in time, 🎅! #NetSky #Complexity🧪

We compare human mobility datasets from 7 data-sources, tracing 500M+ ppl in 145 countries, to test that if statistical properties observed are robust regardless of data gathering & processing techniques.

Guess what? 👇👇👇

www.nature.com/articles/s42...

1/
December 24, 2024 at 9:21 AM
Reposted by Vincent Gauthier
asso-afsp.bsky.social
🔴 #StandUpForScience : mobilisons-nous le 7 mars 2025 !

Des marches pour défendre les sciences comme piliers de la démocratie vont déferler ce vendredi dans les villes universitaires de France.

L’AFSP appelle les politistes à se mobiliser massivement !

Infos : www.afsp.info/stand-up-for...
March 5, 2025 at 8:29 PM
Reposted by Vincent Gauthier
netscience.bsky.social
Resilience of mobility network to dynamic population response across COVID-19 interventions: Evidences from Chile journals.plos.org/ploscompbiol...
Resilience of mobility network to dynamic population response across COVID-19 interventions: Evidences from Chile
Author summary Population response to public health interventions during the Covid-19 pandemic exhibited strong heterogeneities associated to socio-economic factors, labour structure and demographics ...
journals.plos.org
February 21, 2025 at 9:58 AM
Reposted by Vincent Gauthier
mugkraemer.bsky.social
AI is poised to accelerate understanding in infectious diseases, but its value needs to be demonstrated through close collaboration between research, industry, society, and policy.

Paper free to read: rdcu.be/eaxEw

Summary here: www.ox.ac.uk/news/2025-02...
Artificial intelligence for modelling infectious disease epidemics
Nature - This Perspective considers the application to infectious disease modelling of AI systems that combine machine learning, computational statistics, information retrieval and data science.
rdcu.be
February 20, 2025 at 10:13 AM
Reposted by Vincent Gauthier
netscience.bsky.social
Modeling adaptive forward-looking behavior in epidemics on networks arxiv.org/abs/2301.04947
Modeling adaptive forward-looking behavior in epidemics on networks
Incorporating decision-making dynamics during an outbreak poses a challenge for epidemiology, faced by several modeling approaches siloed by different disciplines. We propose an epi-economic model whe...
arxiv.org
February 3, 2025 at 10:28 AM
Reposted by Vincent Gauthier
netscience.bsky.social
Spreading dynamics of information on online social networks www.pnas.org/doi/abs/10.1...
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
www.pnas.org
January 29, 2025 at 2:56 PM
Reposted by Vincent Gauthier
shugars.bsky.social
In the 10 years since last week, I neglected to share that I’m so excited that our “Curation Bubbles” paper with @jongreen.bsky.social, @sdmccabe.com, @davidlazer.bsky.social and others is now out in APSR!
jongreen.bsky.social Jon Green @jongreen.bsky.social · Jan 21
Extremely happy to share that "Curation Bubbles" is online (open access!) at @apsrjournal.bsky.social: www.cambridge.org/core/journal...
Title: Curation Bubbles Abstract: Information on social media is characterized by networked curation processes in which users select other users from whom to receive information, and those users in turn share information that promotes their identities and interests. We argue this allows for partisan “curation bubbles” of users who share and consume content with consistent appeal drawn from a variety of sources. Yet, research concerning the extent of filter bubbles, echo chambers, or other forms of politically segregated information consumption typically conceptualizes information’s partisan valence at the source level as opposed to the story level. This can lead domain-level measures of audience partisanship to mischaracterize the partisan appeal of sources’ constituent stories—especially for sources estimated to be more moderate. Accounting for networked curation aligns theory and measurement of political information consumption on social media. Figure 1: Stylized Examples a) Users consuming information directly from sources b) Users curating information for other users Figure 4: URL Scores by Share Volume for Selected Domains on Twitter and Facebook Figure 8: Proportion of URLs Substantively Distinct from Domain for Different Facebook Engagement Types
January 29, 2025 at 6:29 PM
Reposted by Vincent Gauthier
mcuban.bsky.social
The property insurance industry knows what’s up with climate change and socio economic risk. It’s just about math and science to them. So it’s interesting to see what they have to say

www.insurancebusinessmag.com/us/news/brea...
Three interconnected risk clusters reshaping insurance
Swiss Re Institute chief stresses proactivity in "age of polycrisis"
www.insurancebusinessmag.com
January 29, 2025 at 4:48 AM
Reposted by Vincent Gauthier
clickhouse.com
Taming 1.5B+ Bluesky events! 🌐

That’s right, Bluesky folks, we’ve been tinkering with your JSON data.

Malformed events? Fixed.
Duplicates? Handled.
Inconsistent timestamps? Polished.

✨ The result? Clean, query-ready data you can now explore in our SQL playground.
Building a Medallion architecture for Bluesky data with ClickHouse
Medallion Architecture meets Bluesky. We used ClickHouse’s native features to implement the Medallion Architecture for processing Bluesky data.
buff.ly
January 8, 2025 at 4:00 PM
Reposted by Vincent Gauthier
sciencex.bsky.social
Behavior-based dependency networks, shaped by customer habits, enhance urban resilience to economic shocks by revealing complex, long-distance business dependencies beyond mere proximity. doi.org/g8x4zg
Behavior-based dependency networks can shape the resilience of cities following economic shocks
Unexpected crises or events, such as the COVID-19 pandemic or natural disasters, can cause disruptions to a city's economy.
phys.org
January 24, 2025 at 11:47 AM