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Inverse Complexity Lab

@invcomplexity.skewed.de
1.3K followers 1.2K following 10 posts

Research group @ Center for Critical Computational Studies (C³S), Goethe University Frankfurt, focusing on inverse problems in network science and complex systems. skewed.de/lab Led by Tiago Peixoto (@tiago.skewed.de).

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Tiago Peixoto @tiago.skewed.de · 08/07/2026
Good news everyone! 🎉 The new version 3.0 of graph-tool is just out with major improvements! See below. graph-tool.skewed.de graph-tool is a comprehensive and efficient Python library to work with networks, including structural, dynamical, and statistical algorithms, as well as visualization. 1/N
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Tiago Peixoto @tiago.skewed.de · 12/05/2026
Early Christmas... The @frame.work laptops for our group members @invcomplexity.skewed.de arrived last week!
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Tiago Peixoto @tiago.skewed.de · 31/03/2026
I’m happy to share that, as of April 1st, I will be taking on a W3 Professorship in Complex Systems and Network Science at the Goethe University Frankfurt @goetheuni.bsky.social.
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Tiago Peixoto @tiago.skewed.de · 11/03/2026
Want to learn more about our recent work disentangling the conflation between hypergraphs and higher-order interactions? I will be giving a @beyondtheedge.network seminar March 16, 2026 3:00 PM CET. Paper: arxiv.org/abs/2602.16937 Zoom link here: www.beyondtheedge.network/event/semina...
beyondtheedge.network
BeyondTheEdge Seminar Tiago Peixoto
Tiago Peixoto in the BeyondTheEdge Seminar Series
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Tiago Peixoto @tiago.skewed.de · 23/02/2026
New blog post: "Higher orders need higher standards" skewed.de/lab/posts/hi... I discuss our current work disentangling misconceptions around "higher-order" networks: arxiv.org/abs/2602.16937 Explainer thread for the paper here: bsky.app/profile/tiag...
skewed.de
Higher orders need higher standards – Inverse Complexity Lab
Research group on inverse problems in complex systems and network science.
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Tiago Peixoto @tiago.skewed.de · 20/02/2026
New on the arxiv: “Graphs are maximally expressive for higher-order interactions” arxiv.org/abs/2602.16937 We clarify central misconceptions in the recent literature on "higher-order networks". w/ @piratepeel.bsky.social , @manlius.bsky.social, and @thilogross.bsky.social Explainer 🧵: 1/N
arxiv.org
Graphs are maximally expressive for higher-order interactions
We demonstrate that graph-based models are fully capable of representing higher-order interactions, and have a long history of being used for precisely this purpose. This stands in contrast to a commo...
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Reposted by Inverse Complexity Lab
Tiago Peixoto @tiago.skewed.de · 04/12/2025
I wrote a blog post about the often stated but never explained assumption that communities in graphs should always be connected. This is inconsistent with statistical significance and null models that underlie the most widely employed methods. skewed.de/lab/posts/co...
skewed.de
The perplexing “connected cluster axiom” – Inverse Complexity Lab
Research group on inverse problems in complex systems and network science.
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Reposted by Inverse Complexity Lab
Tiago Peixoto @tiago.skewed.de · 05/11/2025
Just out on @royalsocietypublishing.org: "Scalable network reconstruction in subquadratic time" royalsocietypublishing.org/doi/10.1098/... Previous explainer thread here: bsky.app/profile/tiag... Code here: graph-tool.skewed.de/static/docs/...
royalsocietypublishing.org
Scalable network reconstruction in subquadratic time | Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
Network reconstruction consists in determining the unobserved pairwise couplings between N nodes given only observational data on the resulting behaviour that is conditioned on those couplings—typical...
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Reposted by Inverse Complexity Lab
Tiago Peixoto @tiago.skewed.de · 05/11/2025
Double feature, just out on @royalsocietypublishing.org: "Uncertainty quantification and posterior sampling for network reconstruction" Previous explainer thread here: bsky.app/profile/tiag... Code here: graph-tool.skewed.de/static/docs/... royalsocietypublishing.org/doi/10.1098/...
royalsocietypublishing.org
Uncertainty quantification and posterior sampling for network reconstruction | Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
Network reconstruction is the task of inferring the unseen interactions between elements of a system, based only on their behaviour or dynamics. This inverse problem is in general ill-posed and admits...
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Inverse Complexity Lab @invcomplexity.skewed.de · 05/09/2025
Very happy that Lena joined the group! 🚀
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Lena Mangold @lenamangold.bsky.social · 04/09/2025
🎓 Short interview with me by the lovely people at @cams.ehess.fr , where I wrapped up my PhD this summer ✨ In 🇫🇷, with a longer version also available in 🇬🇧: shorturl.at/FjNRA
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Inverse Complexity Lab @invcomplexity.skewed.de · 08/08/2025
Last week we had our second “Inverse Complexity Lab Retreat” at wonderful Traunkirchen! skewed.de/lab/group.ht... Nothing like eldritch C++ incantations by the sunny lakeside! 🏖️
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Reposted by Inverse Complexity Lab
Thomas Robiglio @thomrobiglio.bsky.social · 22/07/2025
Tomorrow 1.30-2.30pm, poster ID 82
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Inverse Complexity Lab @invcomplexity.skewed.de · 22/07/2025
Attending @ic2s2.bsky.social? Checkout the poster presented by @thomrobiglio.bsky.social! #ic2s2
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Inverse Complexity Lab @invcomplexity.skewed.de · 22/07/2025
New preprint: “Multiscale patterns of migration flows in Austria: regionalization, administrative barriers, and urban-rural divides”, with @thomrobiglio.bsky.social, Martina Contisciani, @martonkarsai.bsky.social, arxiv.org/abs/2507.11503
arxiv.org
Multiscale patterns of migration flows in Austria: regionalization, administrative barriers, and urban-rural divides
Migration is central in various societal problems related to socioeconomic development. While much of the existing research has focused on international migration, migration patterns within a single c...
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Reposted by Inverse Complexity Lab
Inverse Complexity Lab @invcomplexity.skewed.de · 29/06/2025
Are you from the US and would like to work as a postdoc in Austria, maybe in our lab? 25 new fellowships will be available in July from the @oeaw.bsky.social: www.oeaw.ac.at/en/news/25-n... If you are interested; get in touch!
oeaw.ac.at
25 new scholarships for US researchers
Fonds Zukunft Österreich (FZÖ) is providing €10 million in funding for an academy program to bring postdocs from the USA to Austria ++ Faßmann: “The right signal in these turbulent times”
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Inverse Complexity Lab @invcomplexity.skewed.de · 29/06/2025
Are you from the US and would like to work as a postdoc in Austria, maybe in our lab? 25 new fellowships will be available in July from the @oeaw.bsky.social: www.oeaw.ac.at/en/news/25-n... If you are interested; get in touch!
oeaw.ac.at
25 new scholarships for US researchers
Fonds Zukunft Österreich (FZÖ) is providing €10 million in funding for an academy program to bring postdocs from the USA to Austria ++ Faßmann: “The right signal in these turbulent times”
15540
Reposted by Inverse Complexity Lab
Thomas Robiglio @thomrobiglio.bsky.social · 04/06/2025
@invcomplexity.skewed.de bike train to @netsciconf.bsky.social @ituaustria.bsky.social
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Inverse Complexity Lab @invcomplexity.skewed.de · 24/04/2025
A couple of weeks ago we had our first “Complexity Lab Retreat” at great location in Traunkirchen! skewed.de/lab/group.ht... We had the opportunity to flex our methodological muscles and learn the dark secrets of the C++ internals of @graph-tool.skewed.de! 💀🤘
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Inverse Complexity Lab @invcomplexity.skewed.de · 24/04/2025
There will be more of these! Any interest of participation from outside the group? 🤔
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Inverse Complexity Lab @invcomplexity.skewed.de · 24/04/2025
A couple of weeks ago we had our first “Complexity Lab Retreat” at great location in Traunkirchen! skewed.de/lab/group.ht... We had the opportunity to flex our methodological muscles and learn the dark secrets of the C++ internals of @graph-tool.skewed.de! 💀🤘
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Reposted by Inverse Complexity Lab
Tiago Peixoto @tiago.skewed.de · 12/03/2025
🚨 New paper on ArXiv: “Uncertainty quantification and posterior sampling for network reconstruction” TL;DR; We present an efficient method to sample the entire ensemble of possible network reconstructions that are compatible with an indirect observation, e.g. a dynamics. Short thread: 1/N
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Inverse Complexity Lab @invcomplexity.skewed.de · 19/02/2025
go.bsky.app/5hRft3g
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Reposted by Inverse Complexity Lab
graph-tool @graph-tool.skewed.de · 03/01/2025
Good news for Arch GNU/Linux users! Graph-tool is now available in the main repository! To install it, just do: pacman -S python-graph-tool The days of compiling graph-tool from AUR are over! Rejoice! 🎉
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Reposted by Inverse Complexity Lab
Tiago Peixoto @tiago.skewed.de · 03/01/2025
Get 2025 started by reducing your compile times! graph-tool.skewed.de
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Tiago Peixoto @tiago.skewed.de · 20/12/2024
🚨 Job alert 🚨 IT:U is hiring 5 professors (open rank) in Data Science, very broadly defined! Focuses include (among others): 1. Theoretical Foundations of Data Science 2. Data Science in Biological Systems 3. Data Science in Human Mobility it-u.at/en/careers/p... 1/2
it-u.at
Professor of Data Science | IT:U
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Reposted by Inverse Complexity Lab
Tiago Peixoto @tiago.skewed.de · 02/12/2024
Good news everyone! A new version of graph-tool is just out! @graph-tool.skewed.de graph-tool.skewed.de Graph-tool is a comprehensive and efficient Python library to work with networks, including structural, dynamical, and statistical algorithms, as well as visualization. 1/N #networkscience
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Reposted by Inverse Complexity Lab
Tiago Peixoto @tiago.skewed.de · 25/11/2024
🚨Job alert!🚨 Come join us at the Inverse Complexity Lab @invcomplexity.skewed.de We’re hiring a post-doctoral researcher to join our group at IT:U, Linz, Austria. skewed.de/lab/call.html Deadline is 30 Nov 2024. (Next Saturday!) Spread the word. #networkscience #complexsystems
skewed.de
Open post-doc position at the Inverse Complexity Lab – Tiago P. Peixoto
Inverse Complexity Lab
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graph-tool @graph-tool.skewed.de · 13/11/2024
Did you know that you install @graph-tool.skewed.de via @condaproject.bsky.social, it will install binaries that are optimized for your specific CPU micro-architecture, including SIMD vectorization, in addition to having OpenMP enabled? It's awesome! Try it out today!
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Daniel Cooney @danielcooney1.bsky.social · 11/11/2024
Great postdoc opportunity to wrok with @skewed.de at the Inverse Complexity Lab (@invcomplexity.bsky.social) at the new university IT:U in Linz. #Complexity 🧪
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Tiago Peixoto @tiago.skewed.de · 15/10/2024
🚨Job alert!🚨 Come join us at the Inverse Complexity Lab! @invcomplexity.bsky.social We’re hiring a post-doctoral researcher to join our group at IT:U, Linz, Austria. skewed.de/lab/call.html Deadline is 30 Nov 2024. 1/8
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Inverse Complexity Lab @invcomplexity.skewed.de · 24/09/2024
Hello world! We're a research group led by Tiago Peixoto (@skewed.de) at the newly founded IT:U, Linz, Austria. We focus on inverse problems in network science and complex systems. Learn more at: skewed.de/lab Follow this account to get scientific updates! #NetSci #NetSky #ComplexSystems
skewed.de
Inverse Complexity Lab – Tiago P. Peixoto
Inverse Complexity Lab
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Basti Kusch @bastikusch.bsky.social · 23/09/2024
FolIow, if you want to be updated about all the inverse complexity we are doing!
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Inverse Complexity Lab @invcomplexity.skewed.de · 23/09/2024
Hello world! We're a research group led by @skewed.de at the newly founded IT:U, Linz, Austria. We focus on inverse problems in network science and complex systems. Follow this account to get scientific updates!
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