Reposted by Louis BoucherieProceedings of the National Academy of Sciences @pnas.org · 23/06/2026One of the most-discussed PNAS articles on Reddit last month was “Cultural evolution of beauty standards.” Explore the article: ow.ly/i96h50ZfmoY 093
Reposted by Louis BoucherieComplexity Science Hub @csh.ac.at · 01/06/2026More inclusive campaigns, “plus-sized” models, body-positive language. The #fashion industry has grown more vocal about body diversity. But has the industry’s overall body ideal really changed? A new study of nearly 800,000 fashion images says: not really. 🧵👇 #fashionsky #healthdata #mentalhealth 143
Reposted by Louis BoucherieSimon J. Greenhill @simongreenhill.bsky.social · 26/05/2026Who gets to be beautiful, and who decides? The cultural evolution of beauty standards www.pnas.org/doi/10.1073/... 072
Louis Boucherie @louisboucherie.com · 22/05/2026With @diesagar.bsky.social, @Katharina Ledebur, @August Lohse, @Karolina Sliwa! Link ot the paper: www.pnas.org/doi/10.1073/...pnas.orgPNASProceedings 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... 020
Louis Boucherie @louisboucherie.com · 22/05/2026This pattern aligns with decades of intersectionality scholarship. What we add is large-scale empirical evidence from the fashion industry. There is more in the paper: past attempts to regulate the industry (when they succeeded and when they failed), and a network analysis of industry prestige. 110
Louis Boucherie @louisboucherie.com · 22/05/2026Finally, we find that non-white models are 4.5 times more likely to also be plus-size. The increase in diversity is carried across dimensions by the same group of individuals. 100
Louis Boucherie @louisboucherie.com · 22/05/2026Even more striking: when we compare the Relative Fat Mass (think BMI) between the US population (NHANES data) and US models, the gap has not changed at all. There is almost no overlap between models and the general population. 100
Louis Boucherie @louisboucherie.com · 22/05/2026The reason is that most of the change is happening on the tails of the distribution, at the extremes. The increase in body measurement diversity comes from the introduction of a few plus-size models, not from a structural change in who is deemed fit to be a model. 100
Louis Boucherie @louisboucherie.com · 22/05/2026Models are getting more diverse on almost every dimension we measured: ethnicity, body size, nationality, eye color, hair color... But the mean and interquartile range for body measurements are stable. How can both be true? Things are getting more diverse, but they don't really change? 100
Louis Boucherie @louisboucherie.com · 22/05/2026Is the fashion industry actually becoming more inclusive? We analyzed 793,199 records over 25 years to find out. Our results are published today in PNAS. www.pnas.org/doi/10.1073/...pnas.orgCultural evolution of beauty standards | PNASBeauty standards shape self-perception and health through social comparison and objectification, while exposure to idealized imagery exacerbates bo... 1104
Reposted by Louis BoucherieSune Lehmann @sunelehmann.com · 04/09/2025Super excited about our new paper on mobility that's out in Nature Human Behavior www.nature.com/articles/s41... I love this paper for many reasons, but one is that we find beautiful 1/x power-law that spans 6 orders of magnitude hidden within the "ugly" distribution raw mobility data. 3168
Louis Boucherie @louisboucherie.com · 03/09/2025🔊 More from our recent @nathumbehav.nature.com article from the Technical University of Denmark: Our study shows that behind the apparent complexity of human mobility lies a simple rule shaped by geography and distance. 🔗 www.dtu.dk/english/news... DOI: 10.1038/s41562-025-02282-7dtu.dkThere is a hidden simplicity behind how people moveDTU scientists show that once you account for geographical restraints, there are consistent patterns behind human mobility. 0114
Reposted by Louis BoucherieNature Human Behaviour @nathumbehav.nature.com · 01/09/2025In this article, Boucherie et al. apply physics-based models to the arrangement of locations to study how geography shapes human movement. They find an underlying pattern in how people choose to move, independent of geographical layout.nature.comDecoupling geographical constraints from human mobility - Nature Human BehaviourBoucherie et al. apply physics-based models to the arrangement of locations to study how geography shapes human movement. They find an underlying pattern in how people choose to move, independent of geographical layout. 0103
Louis Boucherie @louisboucherie.com · 01/09/2025Amazing collaboration with brilliant co-authors Benjamin F. Maier (also the artist behind the figure below) & @sunelehmann.com Looking forward to your thoughts, and let me know if you’d like to collaborate on follow-up work on mobility and the pair distribution function! 010
Louis Boucherie @louisboucherie.com · 01/09/2025Mobility within a city is governed by one power law (which tells us that distance matters less), while another, steeper power law describes moves between cities, reflecting the stronger deterrent of greater distances. 100
Louis Boucherie @louisboucherie.com · 01/09/2025When considering mobility centered around a single city — rather than mobility of an entire country — a more nuanced picture emerges. Instead of a simple global power law, we observed a universal piecewise behavior. 100
Louis Boucherie @louisboucherie.com · 01/09/2025Finally, we link these findings to the well-studied gravity model by extending it to a continuous setting that does not rely on arbitrary administrative units. However, the story does not end here. 100
Louis Boucherie @louisboucherie.com · 01/09/2025The fractal shape of cities explains the meso-scale of the pairwise distance distribution; and at the large scale, we show that city positions are indistinguishable from uniformly random. 100
Louis Boucherie @louisboucherie.com · 01/09/2025Using the pair distribution function, we treat addresses as particles and develop a statistical physics of locations, from the micro-scale of buildings to the macro-scale of cities. By modeling buildings as an ideal gas in a potential, we reproduce local urban densities. 100
Louis Boucherie @louisboucherie.com · 01/09/2025By using a simple tool from physics—the pair distribution function—we separate the influence of geography (coastlines, rivers, road networks) from people’s mobility choices. Once you factor out the map, the remaining behaviour follows a striking, universal power law across five orders of magnitude. 100
Louis Boucherie @louisboucherie.com · 01/09/2025* 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... 1188
Reposted by Louis BoucherieMichael Szell @mszll.datasci.social.ap.brid.gy · 28/04/2025Finally, the preprint+Python package "neatnet" is out: arxiv.org/abs/2504.16198 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] 23516
Reposted by Louis BoucherieCopenhagen Center for Social Data Science (SODAS) @cphsodas.bsky.social · 22/04/2025Join us for a Data Discussion on April 25! 📅 In this session, Louis Boucherie will discuss the colours of fashion in a fascinating presentation based on large-scale computational analysis, exploring the dynamics of fashion trends over time 🔎 👔 Link🔗: sodas.ku.dk/events/sodas...sodas.ku.dkSODAS Data Discussion 3 (Spring 2025)SODAS is delighted to host Louis Boucherie for the Spring 2025 Data Discussions series! 011
Reposted by Louis BoucherieAltmetric @altmetric.com · 27/03/2025THREAD The numbers are in. @bsky.app research sharing volumes vs X Formerly Twitter In March 2024, on most days, Bluesky hosts more posts linked to research published in 2025 than X. By quite a lot. Release the Kraken... #AcademicSky #HigherEd #Altmetrics 1/11 181211462
Reposted by Louis Boucheriehardmaru @hardmaru.bsky.social · 12/03/2025This was a fun experiment we conducted while developing The AI Scientist-v2. With the permission of ICLR, we submitted an AI-generated paper to an ICLR workshop that passed the peer-review process. We documented the entire process and what we have learned in a blog post: sakana.ai/ai-scientist... 3385
Reposted by Louis BoucherieMichael Szell @mszll.datasci.social.ap.brid.gy · 05/03/2025🎉 New paper in PNAS: Urban highways are barriers to social ties www.pnas.org/doi/10.1073/pnas.24089… Highways are barriers that cut opportunities for social ties. We quantify this effect by overlaying the US highway network with millions of social ties from Twitter. 10217124
Reposted by Louis BoucherieJon Baker @jonbakerocean.bsky.social · 26/02/2025🌊 Today in @nature.com: Is the AMOC on the brink of collapse? Unlikely before 2100—but the risks are real 🚨 We find Southern Ocean winds keep this vital ocean "heat engine" running, even under extreme #climatechange. But the Pacific holds a surprise… tinyurl.com/yt6u4e7d Let’s explore 🧪👇 13256102
Reposted by Louis BoucherieAndreia Sofia Teixeira @asteixeira.bsky.social · 06/02/2025And we are rolling! Submissions are open and will be accepted on a rolling basis! Invited speakers include @tiago.skewed.de and Renaud Lambiotte! All info on our website! 💪🏼 Spread the word 😁 The satellite will be a half day satellite on Tuesday afternoon! signet-friends.github.iosignet-friends.github.ioFRIENDSFrameworks, Research and applIcations in complEx Networks with signeD edgeS 096
Reposted by Louis BoucherieSEES Lab @seeslab.bsky.social · 05/02/2025Can simple closed-form mathematical models predict human mobility as well as deep learning? In a new paper in @naturecomms.bsky.social we show that the answer is YES Human mobility is well described by closed-form gravity-like models learned automatically from data www.nature.com/articles/s41... 2135
Reposted by Louis Boucheriearxiv cs.CL @arxiv-cs-cl.bsky.social · 23/01/2025DeepSeek-AI, Daya Guo, Dejian Yang, Haowei Zhang, Junxiao Song, Ruoyu Zhang, Runxin Xu, Qihao Zhu, Shirong Ma, Peiyi Wang, Xiao Bi, Xiaokang Zhang, Xingkai Yu, Yu Wu, ... DeepSeek-R1: Incentivizing Reasoning Capability in LLMs via Reinforcement Learning arxiv.org/abs/2501.12948 032
Reposted by Louis BoucherieNature @nature.com · 26/01/2025More than 40% of postdoctoral researchers leave academia, according to a study of some 45,500 researchers’ careers go.nature.com/3Ej9RxAgo.nature.comMore than 40% of postdocs leave academia, study revealsNature - Publishing highly cited papers helps postdoctoral researchers to land a faculty job. 715929
Reposted by Louis BoucherieBrennan Klein @jkbren.bsky.social · 13/11/2024We're hiring a postdoc in the &-Lab at Northeastern's Network Science Institute! Looking for a curious, collaborative scholar to work on computational social science questions, at the intersection of data justice + network science. northeastern.wd1.myworkdayjobs.com/careers/job/... 05040
Reposted by Louis BoucherieKevin Yang @yang3kc.bsky.social · 13/11/2024Have been using Cursor for writing LaTeX documents for a while. The idea was simple: Cursor is helpful for coding, and TeX is code in a way, so I gave it a try, and it worked perfectly. It does require some configuration, so I'm sharing mine here: github.com/yang3kc/curs.... 1/2 131
Reposted by Louis BoucherieGermans Savcisens (Savčišens) @savcisens.com · 13/11/2024Join the talk to hear more about transformers for social science: www.soc.cuhk.edu.hk/event/nov-14... 011
