Petter Holme
@pholme.bsky.social
📤 3292
📥 493
📝 287
Scandinasian professor of network science & computational social science
Network of the day: A bunch of trees and their mycorrhizal links to illustrate (the later discredited) wood-wide-web hypothesis. From:
www.pinterest.com/pin/55415392...
3 days ago
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Network of the day: Scottish companies from John Scott's Social Network Analysis (1991).
4 days ago
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It's been five years since our Eurasian Summit for Models of Society. What a stellar line-up we had. 🤩 Ah, those were the days! The pandemic was on, and anything seemed possible (at least as far as Zoom conferences go).
8 days ago
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Network of the day: Japanese educational poster about the different materials and resources produced by / deriving from the forest industry.
16 days ago
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A humble blog post about a recent Science essay by James Evans et al. What can we say about the future collective intelligence of AI agents today? 🤖
petterhol.me/2026/03/20/s...
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Superintelligence, collective stupidity, and the AI agents of the future
First and foremost, James Evans and his colleagues are my greatest role models at the moment, and I can’t think of a better research plan than to follow in their footsteps. This blog post is …
https://petterhol.me/2026/03/20/superintelligence-collective-stupidity/
18 days ago
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Petter Holme
Network Science Society
29 days ago
Next up in our colloquium series: Guido Caldarelli, truly a network science pioneer, representing a European country famous, in addition to Prof. Caldarelli himself, for its exquisite cuisine and the two Nintendo brothers. Register here:
iu.zoom.us/webinar/regi...
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The Holme-Kim model got a paragraph in this piece about networks and nonlinear stuff in PRE over the years 🥳
journals.aps.org/over-30-years
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Over 30 years of Statistical and Nonlinear Physics in _Physical Review E_
APS Division of Statistical and Nonlinear Physics and <em>Physical Review E</em> review over 30 years of research in the division’s areas.
https://journals.aps.org/over-30-years
25 days ago
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Petter Holme
Vittoria Colizza
28 days ago
Two postdoc positions open at SUMOC (Sorbonne Université | INSERM), Paris, within the EPIcx lab. 🦠 Network epidemiology of healthcare-associated infections (ARCANE) 🧠 Coupled behavior–disease modeling (PREVIX) 2-y positions | Start June 2026
#epidemiology
#networks
#matrices
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Bipartite network of the day: Metalloids and their compounds from Youmans' Chemical Atlas 1856.
29 days ago
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New paper out in Nature Communications: 🚨📄https://www.nature.com/articles/s41467-026-70369-4 We hope to bring some oldskool netsci vibes to the weekend, dusting off the understudied characteristic of shortest-path multiplicity.
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Community structure unveils the path multiplicity in complex networks - Nature Communications
Recent studies on path multiplicity have shown strong heterogeneity in shortest paths between node pairs in real-world networks. Here, authors reveal that community structure is a key factor shaping p...
https://www.nature.com/articles/s41467-026-70369-4
about 1 month ago
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Petter Holme
Maël Lecoursonnais
about 1 month ago
🧵 New WP! w/
@selcanmutgan.bsky.social
Most segregation research examines neighborhoods, schools, or workplaces separately. But do individuals' exposure align across domains and persist over the life course? We fill this gap using 27 years of 🇸🇪 data. Pre-print:
osf.io/eunwc_v1
(1/5)
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one season follows another . . my mix-tape for the spring 2026. 90 minutes, to fit your BASF:
open.spotify.com/playlist/02n...
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Spring '26
https://open.spotify.com/playlist/02nFLie97RG6qc0ryEFpCY?si=7fb9efc402474a13
about 1 month ago
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Network of the day: Turkish 16th-century miniature showing the Prophet Muhammad, the Rashidun Caliphs, and people related to them in various ways. From
commons.wikimedia.org/wiki/File:Tu...
Shout out to
@abbasrizi.bsky.social
for clarifications
about 1 month ago
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Petter Holme
Nuria Targarona Rifa
about 1 month ago
Are you a social network researcher using mixed methods? We invite you to contribute to the "Mixed Methods for Social Network Analysis" session at EUSN2026, co-organised with
@franciscaortizruiz.bsky.social
&
@mirandalubbers.bsky.social
Apply by 1 March
liu.se/en/event/eus...
See you in Sweden!
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The 8th European Conference on Social Networks (EUSN 2026)
The 8th European Conference on Social Networks (EUSN 2026) will take place on 11–15 August 2026 in Norrköping, Sweden, hosted by the Institute for Analytical Sociology (IAS), Linköping University. The...
https://liu.se/en/event/eusn-2026
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Network of the day: The piping of an Iraqi refinery. From
dame.exeter.ac.uk/en/home/
about 1 month ago
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Petter Holme
William Dalrymple
about 2 months ago
The Song of the Banyan Tree @jasonsinghthing, the Mozart (or maybe Brian Eno) of Biosonfication, attaches electrodes to our banyan tree to record its biofeedback and turn into a soundtrack for Tishani Doshi to dance to @oliviafraserart's British Council show, A Journey Within, opening Thursday
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Petter Holme
Alessia Galdeman
about 2 months ago
🚨Deadline extension🚨 If you’re interested in Temporal Networks, don’t miss the chance to submit your work to the TENET satellite
@netsciconf.bsky.social
in Boston! 📅 New deadline: 2 March 📝 Submit two page abstract More info here:
tinyurl.com/4zevnyft
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TENET@NetSci2026
https://tinyurl.com/4zevnyft
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Petter Holme
Yu Tian
about 2 months ago
Come and join our Discrete Laplacian workshop in Dresden, Germany 🙌! With Karel Devriendt, Otto Sumray, and Giulio Zucal, we are organising the workshop in MPI-CBG, 22-25 Jun 2026. Thanks to the support from Heather Harrington's group at CSBD, MPI! Abstract ddl: 1 Mar 2026 More details follow 🧵
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Network of the day: Social networks of the WWII Greek resistance by the communist party youth league. From:
attilabatorfy.substack.com/p/diagrams-o...
about 2 months ago
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Petter Holme
Federico Bianchi
about 2 months ago
For the ABM and networks enthusiasts: Special Issue of Social Networks on "Agent-based Modelling for Social Network Research" - co-ed by Andreas Flache,
@squazzoni.bsky.social
, Károly Takács and me
www.sciencedirect.com/special-issu...
Deadlines Extended abstracts: 1 April Full papers: 15 November
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Social Networks | ScienceDirect.com by Elsevier - Social Networks | ScienceDirect.com by Elsevier
Read the latest articles of Social Networks at ScienceDirect.com, Elsevier’s leading platform of peer-reviewed scholarly literature
https://www.sciencedirect.com/special-issue/329924/agent-based-modelling-for-social-network-research
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Petter Holme
Benjamin P Taylor
about 2 months ago
Complex Systems Frameworks Collection
stream.syscoi.com/2026/02/09/c...
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Complex Systems Frameworks Collection
Complex Systems Frameworks Collection Frameworks A-Z – Complex Systems Frameworks Collection
https://stream.syscoi.com/2026/02/09/complex-systems-frameworks-collection/
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Network of the day: An "unpruned cyclic entailment mesh" by Gordon Pask, the networkiest of cyberneticians
monoskop.org/log/?p=2369
about 2 months ago
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Network of the day: US air mail routes 1928. (From:
www.flickr.com/photos/13590...
)
2 months ago
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Petter Holme
The Institute for Analytical Sociology
2 months ago
Join us on Thursday, 29 January, at *13:30 CET for the International Roundtable on Computational Social Science with Bedoor AlShebli (NYU Abu Dhabi) 🔹 The Science of Science... and its Human Side 🔹 More info:
liu.se/en/event/int...
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International Roundtable on Computational Social Science: Bedoor AlShebli
"The science of science... and its human side" Welcome to the International Roundtable on Computational Social Science with Bedoor AlShebli, New York University (NYU) Abu Dhabi. The seminar is open to...
https://liu.se/en/event/international-roundtable-on-computional-social-science-2026-01-29
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Petter Holme
Jukka Suomela
2 months ago
Aalto University is looking for an Assistant Professor in Computer Science, application deadline February 2, 2026!
www.aalto.fi/en/open-posi...
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Petter Holme
Network Science Society
3 months ago
A true legend of the game up next in our colloquium series. On January 27, Mark Newman will talk about competition networks and hierarchies. Sign up here for a Zoom link
iu.zoom.us/webinar/regi...
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Petter Holme
Eleanor Power
3 months ago
🚨Job alert! The ENDOW project is hiring a Research Officer in Research Database Management, to be based at
@lsemethodology.bsky.social
. Oversee & expand our database & contribute to research on social & economic inequality. Deadline 15 February. Share & reach out!
jobs.lse.ac.uk/Vacancies/W/...
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Petter Holme
Ciro Cattuto
3 months ago
Long overdue refresh of the SocioPatterns website! ✨
sociopatterns.org
New content & datasets, and a chance to celebrate 17+ years of collabs, ~100 publications, 2000+ studies using our data. Thanks – more ahead!
@alainbarrat.bsky.social
@wouter-vdb.bsky.social
@foolsdelight.bsky.social
@isi.it
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the mood 😳
youtu.be/PXpJs-myJIQ?...
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The long dark in Vorkuta. Part 1.
YouTube video by Ninurta
https://youtu.be/PXpJs-myJIQ?si=8IpV6EKcXUHmo_bW
3 months ago
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Petter Holme
Luca Maria Aiello
3 months ago
Computational Social Scientists in the Nordics, unite! 🇩🇰🇫🇮🇳🇴🇸🇪🇮🇸 The brand new Nordic Society for CSS welcomes all researchers and practitioners based in the Nordics. The Society will promote student mobility, events, and education initiatives. Join for free:
nosocss.org/join.html
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Kickstart your 2026 with some 1990s avant-garde animation
youtu.be/56EG957YinM?...
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PAPERS
YouTube video by よしながき
https://youtu.be/56EG957YinM?si=mcyIuNMLUmbse5qW
3 months ago
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Petter Holme
Alejandro Pérez Velilla
4 months ago
New preprint out with
@elspethready.bsky.social
: "The emergence of sharing networks through indirect signaling".
osf.io/preprints/so...
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OSF
https://osf.io/preprints/socarxiv/6zfju_v1
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I think the first to go all in on "reality is made of information" was Konrad Zuze, whose Rechnender Raum is a psychedelic read. Interesting even though I don't think there is much reality in the information it provides.
add a skeleton here at some point
4 months ago
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Petter Holme
Attila Bátorfy
4 months ago
The Christmas edition of Cabinet of Infographic Curiosities is out now!
attilabatorfy.substack.com/p/christmas-...
add a skeleton here at some point
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Petter Holme
Rabih Alameddine
6 months ago
Abd ar-Rahman al-Sufi. Book of Fixed Stars, 964 CE. Illustrations from 1417. Manuscript reproduced 1730 The constellation Orion
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Petter Holme
Blog time! 📯 We feel that we understand things when certain patterns of explanations are in place. If reality doesn't follow those patterns, our understanding suffers. On to the third such eureka fallacy I've blogged about: explanation by optimization.
petterhol.me/2025/12/10/t...
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The eureka fallacy of optimization
When we learn things by studying or doing research, we perceive understanding as coming to us in step-like a-ha moments.1 I will argue that these moments happen more likely when we recognize (or ma…
https://petterhol.me/2025/12/10/the-eureka-fallacy-of-optimization/
4 months ago
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Blog time! 📯 We feel that we understand things when certain patterns of explanations are in place. If reality doesn't follow those patterns, our understanding suffers. On to the third such eureka fallacy I've blogged about: explanation by optimization.
petterhol.me/2025/12/10/t...
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The eureka fallacy of optimization
When we learn things by studying or doing research, we perceive understanding as coming to us in step-like a-ha moments.1 I will argue that these moments happen more likely when we recognize (or ma…
https://petterhol.me/2025/12/10/the-eureka-fallacy-of-optimization/
4 months ago
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Petter Holme
Maximilian Schich
4 months ago
Join us today
@cudanlab.bsky.social
for a lecture and discussion with Corinna Coupette of
@aalto.fi
in person
@dataspider.bsky.social
💽🕷️ on Computational Perspectives on Legal Systems 🤖🔭⚖️ 16:00-18:00 Tallinn time UTC+2 🇪🇪🇪🇺🌍 5.5 hours from this post. Details & zoom:
cudan.tlu.ee/events/2025-...
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Corinna Coupette – CUDAN Lecture
When: 2025-12-08 16:00-18:00 (Tallinn time) Where: A108 & online The event is public via zoom: https://zoom.us/j/94629959885?pwd=2NktNsXm0SzbzwwmfGbqlk5UZQoARw.1 Meeting ID: 946 2995 9885 Passcode: 00...
https://cudan.tlu.ee/events/2025-12-08-corinna-coupette-cudan-lecture/
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Yes, I used to be so much into this! Armchair deglobalization at its best. The more exotic the better, so prayer-heavy Sahelian stations like
radio.garden/listen/radio...
are high on my list.
add a skeleton here at some point
4 months ago
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Today's algorithmic art: "Verteilung elementarer Zeichen" by F. Nake, 1965. From "Bit-1: Teorija Informacija I Nova Estetika."
4 months ago
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Petter Holme
Time for another mixtape to get you into that wintery mood. 🎶 A cassette-friendly 90 min, of course.
open.spotify.com/playlist/15s...
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Winter '25
https://open.spotify.com/playlist/15sfyIxRV5S67ZJFvxwZKb?si=23264f8c58804014
4 months ago
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Time for another mixtape to get you into that wintery mood. 🎶 A cassette-friendly 90 min, of course.
open.spotify.com/playlist/15s...
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Winter '25
https://open.spotify.com/playlist/15sfyIxRV5S67ZJFvxwZKb?si=23264f8c58804014
4 months ago
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Network of the day. From R Riedl's "Structures of Complexity"
4 months ago
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Network of the day: States of poverty and corresponding actions from charity organizations from Mohr & Duquenne (1997) via
@netsciconf.bsky.social
5 months ago
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Petter Holme
Alice Schwarze
5 months ago
New, spicy competitor for Zachary's Karate Club just dropped
add a skeleton here at some point
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Petter Holme
International Conference on Computational Social Science
5 months ago
We're excited to announce that the website and registration for IC2S2 2026 (July 28-31) will launch in early December! The Vermont Complex Systems Institute
@vcsi.bsky.social
at the University of Vermont will be hosting IC2S2 in 2026:
youtube.com/watch?v=p412S4GnPkc&feature=youtu.be
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IC2S2 2026 | Burlington, Vermont
YouTube video by UVM Office of Research
https://youtube.com/watch?v=p412S4GnPkc&feature=youtu.be
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Petter Holme
LSE Methodology
5 months ago
@mtsvetkova.bsky.social
is a panellist at the International Society for Computational Social Science (ISCSS) first-ever "Ask Me Anything" webinar, focused on PhD admissions! 🗓️ Nov 19 3.00pm ET 💻Online Register➡️
umich.zoom.us/webinar/regi...
. 💬 Submit questions:
docs.google.com/forms/d/e/1F...
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Petter Holme
The Institute for Analytical Sociology
5 months ago
Join us on Thursday, 6 November, at 14:30 CET for the International Roundtable on Computational Social Science with
@ajalvero.bsky.social
🔹 Generative AI and Sociology: The Good, the Bad, and the Beautiful 🔹 More info:
liu.se/en/article/s...
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Seminars and lectures at IAS
Welcome to IAS public lectures and seminars.
https://liu.se/en/article/seminarier-och-forelasningar-vid-ias
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Network of the day. From: Kuligowski, E.D. (2016). Human Behavior in Fire. In: Hurley, M.J., et al. SFPE Handbook of Fire Protection Engineering. Springer, New York, NY.
5 months ago
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Petter Holme
Marc Keuschnigg
6 months ago
For us, this journey toward explaining *surprising macro outcomes* took many years. Grateful to my amazing co-authors,
@martinarvidsson.bsky.social
and Peter Hedström, and to all the reviewers who supported us along the way 🚀Out now:
sociologicalscience.com/articles-v12...
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