Inverse Complexity Lab
@invcomplexity.skewed.de
Research group @ IT:U, Austria, focusing on inverse problems in network science and complex systems.
https://skewed.de/lab
Led by Tiago Peixoto (@tiago.skewed.de).
https://skewed.de/lab
Led by Tiago Peixoto (@tiago.skewed.de).
Pinned
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! 🏖️
skewed.de/lab/group.ht...
Nothing like eldritch C++ incantations by the sunny lakeside! 🏖️
Reposted by Inverse Complexity Lab
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...
This is inconsistent with statistical significance and null models that underlie the most widely employed methods.
skewed.de/lab/posts/co...
The perplexing “connected cluster axiom” – Inverse Complexity Lab
Research group on inverse problems in complex systems and network science.
skewed.de
December 4, 2025 at 9:10 PM
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...
This is inconsistent with statistical significance and null models that underlie the most widely employed methods.
skewed.de/lab/posts/co...
Reposted by Inverse Complexity Lab
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/...
"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/...
November 5, 2025 at 8:11 AM
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/...
"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/...
Reposted by Inverse Complexity Lab
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/...
"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/...
November 5, 2025 at 8:15 AM
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/...
"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/...
Very happy that Lena joined the group! 🚀
🎓 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
🔎 Découvrez l’interview de Lena Mangold, jeune docteure de l’EHESS (CAMS), qui vient de débuter un postdoctorat au sein de l’Inverse Complexity Lab (IT:U, Austria) !
September 5, 2025 at 9:28 AM
Very happy that Lena joined the group! 🚀
Reposted by Inverse Complexity Lab
🎓 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
🔎 Découvrez l’interview de Lena Mangold, jeune docteure de l’EHESS (CAMS), qui vient de débuter un postdoctorat au sein de l’Inverse Complexity Lab (IT:U, Austria) !
September 4, 2025 at 2:58 PM
🎓 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
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! 🏖️
skewed.de/lab/group.ht...
Nothing like eldritch C++ incantations by the sunny lakeside! 🏖️
August 8, 2025 at 2:03 PM
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! 🏖️
skewed.de/lab/group.ht...
Nothing like eldritch C++ incantations by the sunny lakeside! 🏖️
Reposted by Inverse Complexity Lab
Tomorrow 1.30-2.30pm, poster ID 82
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
July 22, 2025 at 11:43 AM
Tomorrow 1.30-2.30pm, poster ID 82
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
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...
arxiv.org
July 22, 2025 at 8:40 AM
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
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...
arxiv.org
July 22, 2025 at 8:38 AM
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
Reposted by Inverse Complexity Lab
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!
If you are interested; get in touch!
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”
www.oeaw.ac.at
June 29, 2025 at 1:28 PM
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!
If you are interested; get in touch!
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!
If you are interested; get in touch!
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”
www.oeaw.ac.at
June 29, 2025 at 1:28 PM
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!
If you are interested; get in touch!
Reposted by Inverse Complexity Lab
June 4, 2025 at 7:11 AM
Reposted by Inverse Complexity Lab
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! 💀🤘
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! 💀🤘
April 24, 2025 at 4:10 PM
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! 💀🤘
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! 💀🤘
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! 💀🤘
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! 💀🤘
April 24, 2025 at 4:10 PM
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! 💀🤘
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! 💀🤘
Reposted by Inverse Complexity Lab
🚨 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
“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
March 12, 2025 at 11:57 AM
🚨 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
“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
February 19, 2025 at 8:09 AM
Reposted by Inverse Complexity Lab
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! 🎉
pacman -S python-graph-tool
The days of compiling graph-tool from AUR are over!
Rejoice! 🎉
January 3, 2025 at 5:46 PM
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! 🎉
pacman -S python-graph-tool
The days of compiling graph-tool from AUR are over!
Rejoice! 🎉
Reposted by Inverse Complexity Lab
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! 🎉
pacman -S python-graph-tool
The days of compiling graph-tool from AUR are over!
Rejoice! 🎉
January 3, 2025 at 5:48 PM
Reposted by Inverse Complexity Lab
🚨 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 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
Professor of Data Science | IT:U
it-u.at
December 20, 2024 at 6:54 PM
🚨 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 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
Reposted by Inverse Complexity Lab
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
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
December 2, 2024 at 12:55 PM
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
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
Reposted by Inverse Complexity Lab
🚨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
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
Open post-doc position at the Inverse Complexity Lab – Tiago P. Peixoto
Inverse Complexity Lab
skewed.de
November 25, 2024 at 8:06 AM
🚨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
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
Reposted by Inverse Complexity Lab
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!
optimized for your specific CPU micro-architecture, including SIMD vectorization, in addition to having OpenMP enabled?
It's awesome! Try it out today!
November 13, 2024 at 9:40 PM
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!
optimized for your specific CPU micro-architecture, including SIMD vectorization, in addition to having OpenMP enabled?
It's awesome! Try it out today!
Reposted by Inverse Complexity Lab
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 🧪
#Complexity 🧪
🚨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
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
November 11, 2024 at 10:30 PM
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 🧪
#Complexity 🧪
Reposted by Inverse Complexity Lab
🚨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
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
October 15, 2024 at 3:57 PM
🚨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
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
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
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
Inverse Complexity Lab – Tiago P. Peixoto
Inverse Complexity Lab
skewed.de
September 24, 2024 at 7:36 PM
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
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