Petter Holme

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

Complex Systems Frameworks Collection Complex Systems Frameworks Collection Frameworks A-Z – Complex Systems Frameworks Collection

Complex Systems Frameworks Collection stream.syscoi.com/2026/02/09/c...

Network of the day: An "unpruned cyclic entailment mesh" by Gordon Pask, the networkiest of cyberneticians monoskop.org/log/?p=2369

Gemini insists that every section heading should have a subheading (even subsection headings). Now I realize it learned that from Bouchaud.

But did @nachristakis.bsky.social then take 24 minutes to read it?

The Google office?

A view from Shibuya Stream?

Yes!
If humans had a collective intelligence, it would probably have worked pretty much opposite to: a) coming up with words. b) discussing (and failing) to define these.

It took two weeks from we paid the APC until we got the proofs, then another two weeks between returned proofs and publication. (This was half a year ago.)

Network of the day: US air mail routes 1928. (From: www.flickr.com/photos/13590... )

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...

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...

Aalto University is looking for an Assistant Professor in Computer Science, application deadline February 2, 2026!
www.aalto.fi/en/open-posi...

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...

I remember one of these blends make much better latte, but they are similar for americano . . weird

The ENDOW project is seeking a Research Officer in Research Data Management to be based at the London School of Economics. - Oversee and extend our database covering geospatial, demographic, economic & social network data from 50+ communities in 30+ countries! - Contribute to research on the dynamics of social and economic inequality! - Join a stellar interdisciplinary team! - funded by the ESRC and the NSF [world map showing location of ENDOW communities; photos of some of the team members and some of the ENDOW communities showing their diversity

Research Officer in Research Data Management Salary from £43,277 to £48,220 pa inclusive of London allowance Fixed-term appointment for 18 months This research officer position is to work with Eleanor Power as part of the ongoing "ENDOW" project (Economic Networks and the Dynamics of Wealth Inequality), funded by the UKRI and US National Science Foundation. The research officer will be based in the Department of Methodology, a leading centre for research and education in social science research methods. While we expect this to be a full-time appointment, we are open to considering the possibility of a part-time appointment. The post entails overseeing and extending the database of the "ENDOW" project, which includes data from over fifty communities around the world, comprising economic, demographic, and social network data characterising each community, its resident households, and the individuals within them. The research officer will be responsible for the expansion of this database to include longitudinal data from each community site, implementing a robust data infrastructure to manage and curate this information. The research officer will work closely with Dr Power and data contributors to ensure data quality, standardisation, and appropriate governance. They will contribute to core analyses of the ENDOW project and develop tools and resources that will be of wide utility for the collection, curation, and analysis of cross-cultural data. This role is central to building the data infrastructure that will enable meaningful, productive comparisons across these diverse field sites and will ultimately serve as a resource for the broader scientific community. The successful candidate will: Have a completed PhD, be close to completing a PhD, or have other research experience that demonstrates the capability to produce independent original research Have experience with database design, data management and data governance Have experience with programming in R or Python

🚨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/...

A grid of images showing SocioPatterns wearable devices, collaborators of the project, proximity graphs, and deployments in museums, hospitals, villages.

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

YouTube video by Ninurta The long dark in Vorkuta. Part 1.

the mood 😳
youtu.be/PXpJs-myJIQ?...

I agree! Sharing science through journal articles is just so stupid (assuming science is supposed to be an exercise in collective intelligence) . . . and then building an award system on those articles. 🙄

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.

YouTube video by よしながき PAPERS

Kickstart your 2026 with some 1990s avant-garde animation

youtu.be/56EG957YinM?...

New preprint out with @elspethready.bsky.social : "The emergence of sharing networks through indirect signaling".

osf.io/preprints/so...

Isn't it the fact that the songs don't change during our lifetimes that gives an illusion that they're set in a static world?

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.

It was also almost forgotten* until physicists entered complexity science by hopping on the fractals+chaos train.

* See Fig. + of the citations from the two decades, only a few were by physicists.

The Christmas edition of Cabinet of Infographic Curiosities is out now! attilabatorfy.substack.com/p/christmas-...

Abd ar-Rahman al-Sufi. Book of Fixed Stars, 964 CE. Illustrations from 1417. Manuscript reproduced 1730
The constellation Orion

I think @kristinalerman.bsky.social reads the picture from left to right? ☺️

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…

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...

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…

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...

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-...