Congratulations to our @dvladek.bsky.social for being appointed Docent in Computer Science!

How fair are the algorithms that decide who gets information online? Our new paper in PNAS Nexus shows that maximization algorithms, the ones used to pick “influencers” in social networks, unintentionally deepen inequality. 🧠 Sekara, Dotu, Cebrian, Moro & García-Herranz 🔗 doi.org/10.1093/pnas...

MOUFLON: Multi-group Modularity-based Fairness-aware Community Detection https://arxiv.org/abs/2510.12348 In this paper, we propose MOUFLON, a fairness-aware, modularity-based community detection method that allows adjusting the importance of partition quality over fairness outcomes. MOUFLON ...📈🤖

In Zurich today for the Ethics in Complex Systems Workshop

My friends after watching this: "is this your PhD?"

Want to promote transparency and clarity in network research by helping develop 𝐆𝐮𝐢𝐝𝐞𝐥𝐢𝐧𝐞𝐬 𝐟𝐨𝐫 𝐑𝐞𝐩𝐨𝐫𝐭𝐢𝐧𝐠 𝐀𝐛𝐨𝐮𝐭 𝐍𝐞𝐭𝐰𝐨𝐫𝐤 𝐃𝐚𝐭𝐚 (𝐆𝐑𝐀𝐍𝐃)? Sign up to get involved here: tinyurl.com/help-with-GR... ▪️ All career stages welcome ▪️ All fields welcome ▪️ Be compensated for your time

🚨 New paper out! 🚨 🔗 arxiv.org/abs/2509.21092 [read comments for more!] Special thanks to my co-authors @dvladek.bsky.social and Alessio Gandelli from @uuinfolab.bsky.social ! #ComputationalSocialScience #OnlineSocialNetworks @arxiv-cs-si.bsky.social

Nearly twenty years after the first igraph release, igraph 1.0 has finally arrived! 🎉 This release focuses on providing a stable and more consistent interface that users and downstream maintainers can rely on with confidence. For more detail, see igraph.org/2025/09/20/i...

Our new study provides the first large-scale look at how collective action is expressed in spoken digital discourse, using #BlackLivesMatter as a case study. Many thanks to @ariannapera.bsky.social @dvladek.bsky.social @lajello.bsky.social for the collab Check it out: arxiv.org/abs/2509.13197

I will not stop using my em dashes out of fear of a reviewer accusing me of using AI!

📢Take a breath, you have extra days to finish! Due to technical issues with @openreviewnet this week, we’ve extended all deadlines by 2 weeks. 🗓️New deadline for abstracts: Sept 19, 23:59 AoE 📷 More info: netscix2026.github.io @MLuczak @ProfMSmall @droneale @danielapaolotti

#CCS2025 Day 4 invited speaker Fariba Karimi discusses inequality between majority and minority in social networks of science

Population-Scale Network Embeddings Expose Educational Divides in Network Structure Related to Right-Wing Populist Voting https://arxiv.org/abs/2508.21236 Administrative registry data can be used to construct population-scale networks whose ties reflect shared social contexts between persons....📈🤖

Final year PhD students, I know you’re desperately trying to finish experiments/revisions/submissions/write a thesis & just survive - but please spare a few minutes to apply to your dream postdoc labs. It easily takes A YEAR from first contact, even if everything goes to plan on both sides.

Our article on population-scale networks of social opportunities constructed from administrative data is now available online: www.nature.com/articles/s41....

🧮 ~8M nodes, 330M relationships across family, household, school & work. 🇸🇪 We constructed a multilayer population-scale network for Sweden, capturing distinct features of the country. 📝 doi.org/10.1038/s415... cc: @ingakwoh.bsky.social @matmagnani.bsky.social ++

Καλημέρα! Καλό Δεκαπενταύγουστο!

"This is the first result to break the O(m+nlogn) time bound of Dijkstra's algorithm on sparse graphs, showing that Dijkstra's algorithm is not optimal for SSSP." arxiv.org/abs/2504.17033

Catching up on emails after week away from office really highlights just how many predatory journal invites I receive (even though I routinely block them). #academicsky

Summer CV-worthy math project (finishing balatro) complete. Now to finally update my website

So glad for the support I received🙏🏻 I met so many interesting people, had fruitful discussions and so much fun! Special thank to my supervisors @dvladek.bsky.social @calikus.bsky.social , to my amazing colleagues @uuinfolab.bsky.social and … [comments]

It‘s a wrap! Man, what an experience. I’m 150% exhausted, but 200% happy! It was an honor hosting #IC2S2 2025 in Norrköping with phenomenal weather for so many lovely people! I can’t wait to see you all again! Many thanks to all participants, keynote speakers, and helpers! ❤️

Happy to be part of this work and seeing it being presented here in Sweden!

No better place than a Swedish #ic2s2 to present our population-scale network of Sweden! 🇸🇪 Very grateful to discuss ideas and challenges with colleagues (future collaborators?) working with similar data. You can find our preprint here: doi.org/10.31235/osf...

We did a thing, and we are presenting it today at the @ic2s2.bsky.social #IC2S2 poster session: A model to study Manipulative Language. Work led by @dilettagoglia.bsky.social, in collaboration with @calikus.bsky.social and myself. Find Diletta at poster #26.

@uuinfolab.bsky.social @ #ic2s2

My friends from Uppsala are going strong — check their presentations out, great stuff! #ic2s2 @dilettagoglia.bsky.social @giorgospanay.bsky.social @ingakwoh.bsky.social @dvladek.bsky.social et al.

Anatomy of a Swedish population-scale network Georgios Panayiotou, Inga K. Wohlert, Miia Bask, Mikael Bask, Matteo Magnani, Ilkka Henrik Mäkinen Session: Social Networks I (Hemeryck) 24 Jul 2025, 11:00 – 12:30

This week many of us are in Norrköping for the International Conference on Computational Social Science. In the thread, a list of our presentations. #ic2s2

Also at @ic2s2.bsky.social this week? Eager to connect with the 🦋 community? Check out this custom feed tracking IC2S2 mentions: bsky.app/profile/did:...

It’s exciting to see people sharing their excitement about #ic2s2! 🥰 If you want to stay up to date, don’t forget to follow @ic2s2.bsky.social and share your thoughts using #ic2s2!

This week we are at #ICWSM, with @giorgospanay.bsky.social talking about representational fairness in graph community detection.

The challenges of measuring representational fairness of graph community detection algorithms by @giorgospanay.bsky.social at DETOX #ICWSM.

Kicking off #ICWSM with the DETOX workshop and @maxfalken.bsky.social’s keynote on why the Web is not a set of siloed platforms and why we should not study it as such. Shows why deplatforming doesn’t work exactly as we expect and why large online platforms are plagued by affective polarization

Hello Copenhagen! This week I will be at @icwsm.bsky.social and the DETOX workshop. Looking forward to meeting new colleagues and old friends!

I'll be at #ICWSM 2025 next week to present our paper about Bluesky Starter Packs. For the occasion, I've created a Starter Pack with all the organizers, speakers, and authors of this year I could find on Bluesky! Link: go.bsky.app/GDkQ3y7 Let me know if I missed anyone!

Our new preprint on detecting coordination on TikTok 👇🏻

New preprint: we delve into the challenges of finding coordination in short-video platforms In this work led by @ingakwoh.bsky.social with @matmagnani.bsky.social and Alexandra Segerberg we propose a multimodal network-based method to identify possible coordination in TikTok arxiv.org/pdf/2506.05868

Planning your trip for @icwsm.bsky.social ? Add DETOX workshop to your schedule! 🎤Submit for pitch talks - 2 minutes to share research, spark discussions, or introduce your work. Dynamic back-to-back format, established researchers & newcomers welcome! ⚡ Info here: tinyurl.com/mvn9zbmh

🎉 🚀 #SICSS-IAS is officially underway! We’re excited to kick off two weeks of learning, coding, and collaboration with a brilliant new cohort of aspiring computational social scientists.

Ironic that transit from #NetSci2025 @netsciconf.bsky.social is disrupted due to failure of a high-betweenness node.

Big day yesterday at InfoLab :-)

Multilayer network of the day. From: LA Brown, Diffusion Dynamics (1968).

1/ The US government has ordered the Swedish city of Stockholm to end its diversity, inclusivity and equality (DEI) programmes within 10 days. The city authorities say the demand is "bizarre" and they won't be complying. ⬇️

Back home after a month-long AccelNet-MultiNet exchange at IU Bloomington-- time really flies by! Thank you @santof.bsky.social, and to everybody at CNetS for a wonderful time there!

[edit with right link] New report where we construct and analyse a population-scale (multilayer) social network for Sweden: "Anatomy of a Swedish population-scale network", available here: osf.io/preprints/so... This allows us to relate social network features with other socio-demographic variables.

Had the pleasure of attending a PhD defence on a fascinating subject: how do we reconstruct multiplex networks? Congratulations @kaiserdaniel.bsky.social!

New publication, where we look at climate change communication on YouTube via API research, channel coding, and computational image analysis. journals.plos.org/plosone/arti...

In this new publication we propose and compare algorithmic approaches to efficiently process networks where edge existence is uncertain, e.g. because of imperfect data collection. "On the accurate computation of expected modularity in probabilistic networks", Sci.Reports arxiv.org/abs/2408.07161

Sharing our new preprint "An Image is Worth K Topics: A Visual Structural Topic Model with Image Embeddings" with @mansmag.bsky.social @matmagnani.bsky.social Alexandra Segerberg and Nataša Sladoje. Available on ArXiv: arxiv.org/abs/2504.10004