Petter Holme
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pholme.bsky.social
Petter Holme
@pholme.bsky.social
Scandinasian professor of network science & computational social science
Just in general . . I think humans absolutely adore symmetry and instinctively ignore asymmetric theories/observations to the point that if you see someone presenting something asymmetric, you can assume they actually have some evidence.

petterhol.me/2025/05/07/s...
December 2, 2025 at 1:14 PM
Today's algorithmic art:
"Verteilung elementarer Zeichen" by F. Nake, 1965. From "Bit-1: Teorija Informacija I Nova Estetika."
December 2, 2025 at 12:40 PM
Network of the day. From R Riedl's "Structures of Complexity"
November 24, 2025 at 10:17 AM
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
It's cool how aviation technology changed the topology of such networks.
November 5, 2025 at 2:29 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.
November 3, 2025 at 8:45 PM
Network of the day.
From: Briggs & Peat, Turbulent Mirror, 1989.
October 23, 2025 at 7:07 PM
Network of the day, from: Live Fyrand, "Sosialt Nettverk: Teori og Praktikk", 1994.
October 19, 2025 at 9:13 PM
🙃
October 14, 2025 at 1:12 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
October 8, 2025 at 12:53 PM
Network of the day.
An autocatalytic network from: S Levy, Artificial Life, 1992.
October 3, 2025 at 1:48 PM
The figures of old simulation papers are so vaporwave.

(From: Gilbert & Conte (eds.), "Artificial Societies.")
September 18, 2025 at 11:31 AM
Network (visualization) of the day, by Duane M. Palyka (1968).

From: Margit Rosen, et al. (eds.): A Little-Known Story About a Movement, a Magazine, and The Computer’s Arrival in Art: New Tendencies and Bit International, 1961-1973 (2011).
September 5, 2025 at 8:17 AM
Network of the day: A network of modernist writers.
From "The Gender of Modernity" by Bonnie Lynn Scott (1990).
September 1, 2025 at 7:52 AM
From Kosslyn's "Elements of graph design"
August 29, 2025 at 4:47 PM
If you prefer my shoes (symbolically?) in the picture, may I contribute with this pic.
August 27, 2025 at 11:42 AM
Network of the day. From: Epstein & Axtell, Growing Artificial Societies (1996).

The book is, of course, a classic in the pre-network-science complexity science literature. But I, for one, forgot that it also contains networks.
August 17, 2025 at 8:08 AM
Network of the day. From: Mirkin & Rodin's "Graphs and Genes" (1984).
August 5, 2025 at 5:57 AM
Network of the day. From: Graph Games by Frédérique and Papy (1971).
August 4, 2025 at 2:31 PM
Duncan Watts makes the very apt point that we should aim for CSS that both predicts and explains. Here is one of the few Q4 papers (more behavioral than social though): www.science.org/doi/10.1126/...
July 24, 2025 at 7:46 AM
Network of the day. From a flyer for Turino's Club to Club festival.
July 22, 2025 at 8:09 AM
Straight to my CV 🤭 I was heavily featured in @sunelehmann.com 's ICSSI dinner talk.

( dx.doi.org/10.2139/ssrn... relates a bit to Sune's talk)
June 17, 2025 at 7:36 PM
Network of the day: Wartime pigeon post network in Moscow and its surroundings.

Source: pin.it/SWMUIDZlp
June 12, 2025 at 8:21 AM
Network of the day: Visibility graphs for urban planning from Lewis Mumford's "The City in History" (1961).
June 11, 2025 at 6:26 PM
Network of the day: The peptide backbone of papain

Drenth & al., Nature 218 (1968), 929-32.
June 8, 2025 at 8:35 PM