Petter Holme
@pholme.bsky.social
Scandinasian professor of network science & computational social science
Network of the day. From R Riedl's "Structures of Complexity"
November 24, 2025 at 10:17 AM
Network of the day. From R Riedl's "Structures of Complexity"
Network of the day: States of poverty and corresponding actions from charity organizations from Mohr & Duquenne (1997) via @netsciconf.bsky.social
November 22, 2025 at 7:22 AM
Network of the day: States of poverty and corresponding actions from charity organizations from Mohr & Duquenne (1997) via @netsciconf.bsky.social
Reposted by Petter Holme
New, spicy competitor for Zachary's Karate Club just dropped
Max Andrews @thatsjustlikeyouropinionman.com has converted the Epstein email drop into a searchable, visualized, network that allows you to explore relationships among the actors and examine the nature of their connections. You'll find D. Trump in the "yolk." 👏Max
epstein-doc-explorer-1.onrender.com
epstein-doc-explorer-1.onrender.com
network-ui
epstein-doc-explorer-1.onrender.com
November 15, 2025 at 4:32 AM
New, spicy competitor for Zachary's Karate Club just dropped
Reposted by Petter Holme
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
IC2S2 2026 | Burlington, Vermont
YouTube video by UVM Office of Research
youtube.com
November 13, 2025 at 3:36 PM
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
Reposted by Petter Holme
@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...
🗓️ Nov 19 3.00pm ET
💻Online
Register➡️ umich.zoom.us/webinar/regi....
💬 Submit questions: docs.google.com/forms/d/e/1F...
November 11, 2025 at 4:55 PM
@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...
🗓️ Nov 19 3.00pm ET
💻Online
Register➡️ umich.zoom.us/webinar/regi....
💬 Submit questions: docs.google.com/forms/d/e/1F...
Reposted by Petter Holme
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...
Seminars and lectures at IAS
Welcome to IAS public lectures and seminars.
liu.se
October 31, 2025 at 9:39 AM
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...
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.
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.
November 3, 2025 at 8:45 PM
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.
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.
Reposted by Petter Holme
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...
🚀Out now: sociologicalscience.com/articles-v12...
October 24, 2025 at 2:04 PM
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...
🚀Out now: sociologicalscience.com/articles-v12...
Network of the day.
From: Briggs & Peat, Turbulent Mirror, 1989.
From: Briggs & Peat, Turbulent Mirror, 1989.
October 23, 2025 at 7:07 PM
Network of the day.
From: Briggs & Peat, Turbulent Mirror, 1989.
From: Briggs & Peat, Turbulent Mirror, 1989.
Reposted by Petter Holme
🔈Job Alert!
Swedish Excellence Center in Computational Social Science (SWECSS) is hiring postdoctoral researchers. Positions are available at IAS and the Department of Computer Science (IDA).
⌛Deadline: 31 October
IAS: liu.se/en/work-at-l...
IDA: liu.se/en/work-at-l...
#academicsky #css
Swedish Excellence Center in Computational Social Science (SWECSS) is hiring postdoctoral researchers. Positions are available at IAS and the Department of Computer Science (IDA).
⌛Deadline: 31 October
IAS: liu.se/en/work-at-l...
IDA: liu.se/en/work-at-l...
#academicsky #css
October 21, 2025 at 7:01 PM
🔈Job Alert!
Swedish Excellence Center in Computational Social Science (SWECSS) is hiring postdoctoral researchers. Positions are available at IAS and the Department of Computer Science (IDA).
⌛Deadline: 31 October
IAS: liu.se/en/work-at-l...
IDA: liu.se/en/work-at-l...
#academicsky #css
Swedish Excellence Center in Computational Social Science (SWECSS) is hiring postdoctoral researchers. Positions are available at IAS and the Department of Computer Science (IDA).
⌛Deadline: 31 October
IAS: liu.se/en/work-at-l...
IDA: liu.se/en/work-at-l...
#academicsky #css
arXiv alert! 📄🚨
A review paper about the physics of news, rumors, and opinions
arxiv.org/abs/2510.15053
w @manlius.bsky.social @sarawalk.bsky.social Guido Cadarelli et al.
A review paper about the physics of news, rumors, and opinions
arxiv.org/abs/2510.15053
w @manlius.bsky.social @sarawalk.bsky.social Guido Cadarelli et al.
The Physics of News, Rumors, and Opinions
The boundaries between physical and social networks have narrowed with the advent of the Internet and its pervasive platforms. This has given rise to a complex adaptive information ecosystem where ind...
arxiv.org
October 20, 2025 at 6:32 AM
arXiv alert! 📄🚨
A review paper about the physics of news, rumors, and opinions
arxiv.org/abs/2510.15053
w @manlius.bsky.social @sarawalk.bsky.social Guido Cadarelli et al.
A review paper about the physics of news, rumors, and opinions
arxiv.org/abs/2510.15053
w @manlius.bsky.social @sarawalk.bsky.social Guido Cadarelli et al.
Network of the day, from: Live Fyrand, "Sosialt Nettverk: Teori og Praktikk", 1994.
October 19, 2025 at 9:13 PM
Network of the day, from: Live Fyrand, "Sosialt Nettverk: Teori og Praktikk", 1994.
Reposted by Petter Holme
Reminder: Last chance to apply for our postdoc positions in polarisation + mental well-being: www.aalto.fi/en/open-posi...
Open postdoctoral and doctoral positions to work on polarization and mental health | Aalto University
You will be working in the research group of one of the PIs of the projects, but in collaboration with the others. The PIs are Talayeh Aledavood, Juhi Kulshrestha, and Mikko Kivelä.
www.aalto.fi
October 10, 2025 at 7:49 PM
Reminder: Last chance to apply for our postdoc positions in polarisation + mental well-being: www.aalto.fi/en/open-posi...
Reposted by Petter Holme
💡👉 "Artificially intelligent agents in the social and behavioral sciences: A history and outlook"
A new paper from @mtsvetkova.bsky.social (@lsedatascience.bsky.social Affiliate) and Professor @pholme.bsky.social traces the evolution of agentic #AI in the social sciences
➡️ arxiv.org/abs/2510.05743
A new paper from @mtsvetkova.bsky.social (@lsedatascience.bsky.social Affiliate) and Professor @pholme.bsky.social traces the evolution of agentic #AI in the social sciences
➡️ arxiv.org/abs/2510.05743
Artificially intelligent agents in the social and behavioral sciences: A history and outlook
We review the historical development and current trends of artificially intelligent agents (agentic AI) in the social and behavioral sciences: from the first programmable computers, and social…
arxiv.org
October 9, 2025 at 10:01 AM
💡👉 "Artificially intelligent agents in the social and behavioral sciences: A history and outlook"
A new paper from @mtsvetkova.bsky.social (@lsedatascience.bsky.social Affiliate) and Professor @pholme.bsky.social traces the evolution of agentic #AI in the social sciences
➡️ arxiv.org/abs/2510.05743
A new paper from @mtsvetkova.bsky.social (@lsedatascience.bsky.social Affiliate) and Professor @pholme.bsky.social traces the evolution of agentic #AI in the social sciences
➡️ arxiv.org/abs/2510.05743
arXiv alert 📄🚨
arxiv.org/abs/2510.05743 w Milena Tsvetkova
This was such a fun paper to write! The development leading up to today’s social/behavioral science with AI agents. The history itself is a roller-coaster ride connecting many of the big themes of 20/21 century human-centric science.
1/3
arxiv.org/abs/2510.05743 w Milena Tsvetkova
This was such a fun paper to write! The development leading up to today’s social/behavioral science with AI agents. The history itself is a roller-coaster ride connecting many of the big themes of 20/21 century human-centric science.
1/3
October 8, 2025 at 12:53 PM
arXiv alert 📄🚨
arxiv.org/abs/2510.05743 w Milena Tsvetkova
This was such a fun paper to write! The development leading up to today’s social/behavioral science with AI agents. The history itself is a roller-coaster ride connecting many of the big themes of 20/21 century human-centric science.
1/3
arxiv.org/abs/2510.05743 w Milena Tsvetkova
This was such a fun paper to write! The development leading up to today’s social/behavioral science with AI agents. The history itself is a roller-coaster ride connecting many of the big themes of 20/21 century human-centric science.
1/3
Reposted by Petter Holme
Bring back inscrutable security posters
October 7, 2025 at 3:05 AM
Bring back inscrutable security posters
Network of the day.
An autocatalytic network from: S Levy, Artificial Life, 1992.
An autocatalytic network from: S Levy, Artificial Life, 1992.
October 3, 2025 at 1:48 PM
Network of the day.
An autocatalytic network from: S Levy, Artificial Life, 1992.
An autocatalytic network from: S Levy, Artificial Life, 1992.
arXiv alert! 📄🚨
Robustness of small networks
arxiv.org/abs/2509.23670
Great to dust off one of my favorite topics and get to collaborate with the legendary
@aliceschwarze.bsky.social and Peter Mucha
Robustness of small networks
arxiv.org/abs/2509.23670
Great to dust off one of my favorite topics and get to collaborate with the legendary
@aliceschwarze.bsky.social and Peter Mucha
Robustness of 'small' networks
Modeling how networks change under structural perturbations can yield foundational insights into network robustness, which is critical in many real-world applications. The largest connected component ...
arxiv.org
September 30, 2025 at 5:58 AM
arXiv alert! 📄🚨
Robustness of small networks
arxiv.org/abs/2509.23670
Great to dust off one of my favorite topics and get to collaborate with the legendary
@aliceschwarze.bsky.social and Peter Mucha
Robustness of small networks
arxiv.org/abs/2509.23670
Great to dust off one of my favorite topics and get to collaborate with the legendary
@aliceschwarze.bsky.social and Peter Mucha
I updated my blogpost about complexity science books from the golden era (1987–1996). Now it covers 17 books—many very readable even 30 years later!
petterhol.me/2022/08/11/t...
petterhol.me/2022/08/11/t...
The golden era of complexity science books
Here is a list of complexity science books in a popular science style from when the hype was the biggest—from 1987 and a decade further*—and some very brief comments. Several of them are available …
petterhol.me
September 29, 2025 at 8:59 PM
I updated my blogpost about complexity science books from the golden era (1987–1996). Now it covers 17 books—many very readable even 30 years later!
petterhol.me/2022/08/11/t...
petterhol.me/2022/08/11/t...
Reposted by Petter Holme
Welcome to First Brands’ debt jungle
[FREE TO READ] ‘Lions and tigers and off-balance sheet factoring, oh my!’
on.ft.com
September 29, 2025 at 11:37 AM
Reposted by Petter Holme
Jia et al. experimentally show that when individuals can tailor their actions to each neighbour - a freedom termed social networking agency - they display higher cooperation, trust and fairness in economic games. @ivanromic.bsky.social @pholme.bsky.social
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Social networking agency and prosociality are inextricably linked in economic games - Nature Human Behaviour
Jia et al. experimentally show that when individuals can tailor their actions to each neighbour—a freedom termed social networking agency—they display higher levels of cooperation, trust and fairness in economic games.
www.nature.com
September 24, 2025 at 9:26 PM
Jia et al. experimentally show that when individuals can tailor their actions to each neighbour - a freedom termed social networking agency - they display higher cooperation, trust and fairness in economic games. @ivanromic.bsky.social @pholme.bsky.social
www.nature.com/articles/s41...
www.nature.com/articles/s41...
New paper in NHB 📄🚨
We ran extensive experiments to show that making the rules of some canonical economic games looser, makes people more cooperative
www.nature.com/articles/s41...
We ran extensive experiments to show that making the rules of some canonical economic games looser, makes people more cooperative
www.nature.com/articles/s41...
Social networking agency and prosociality are inextricably linked in economic games - Nature Human Behaviour
Jia et al. experimentally show that when individuals can tailor their actions to each neighbour—a freedom termed social networking agency—they display higher levels of cooperation, trust and fairness in economic games.
www.nature.com
September 24, 2025 at 12:26 PM
New paper in NHB 📄🚨
We ran extensive experiments to show that making the rules of some canonical economic games looser, makes people more cooperative
www.nature.com/articles/s41...
We ran extensive experiments to show that making the rules of some canonical economic games looser, makes people more cooperative
www.nature.com/articles/s41...
Reposted by Petter Holme
📣 Job alert! *Assistant Prof in Computational Social Science*. We're a friendly department, with sharp students, at a great institution, in a lovely city. We have real strengths in computational social science & are looking for a colleague to build this further. Share and reach out with quesions!
We're hiring an Assistant Professor in Computational Social Science ❗
📚 jobs.lse.ac.uk/Vacancies/W/...
Apply before 26 October to join an internationally outstanding group of social science methodologists 🌎
📚 jobs.lse.ac.uk/Vacancies/W/...
Apply before 26 October to join an internationally outstanding group of social science methodologists 🌎
September 18, 2025 at 3:50 PM
📣 Job alert! *Assistant Prof in Computational Social Science*. We're a friendly department, with sharp students, at a great institution, in a lovely city. We have real strengths in computational social science & are looking for a colleague to build this further. Share and reach out with quesions!
Reposted by Petter Holme
In just about a week, the season's first NetSci Colloquium will happen. And we're starting with a bang . . . with none other than Iain Couzin talking about Collective Behavior in Animal Groups. September 24, 10 AM ET. Register here to get a Zoom link: iu.zoom.us/webinar/regi...
September 18, 2025 at 2:02 PM
In just about a week, the season's first NetSci Colloquium will happen. And we're starting with a bang . . . with none other than Iain Couzin talking about Collective Behavior in Animal Groups. September 24, 10 AM ET. Register here to get a Zoom link: iu.zoom.us/webinar/regi...
The figures of old simulation papers are so vaporwave.
(From: Gilbert & Conte (eds.), "Artificial Societies.")
(From: Gilbert & Conte (eds.), "Artificial Societies.")
September 18, 2025 at 11:31 AM
The figures of old simulation papers are so vaporwave.
(From: Gilbert & Conte (eds.), "Artificial Societies.")
(From: Gilbert & Conte (eds.), "Artificial Societies.")