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Jari Saramäki

@jsaramak.bsky.social
1.7K followers 514 following 81 posts

Professor @Aalto University, Finland. I am a network scientist, bass guitar player, a fan of coherent writing, and a general enthusiast. jarisaramaki.fi | books2read.com/howtowriteapaper

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Jari Saramäki @jsaramak.bsky.social · 12/01/2026
Our CS building has received wonderful new works of art! These are student works from Aalto University’s interdisciplinary course ‘Crystal Flowers in Halls of Mirrors: Mathematics Meets Art and Architecture’, previously exhibited at Heureka as part of the Fibrations exhibition.
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Complexity Science Hub @csh.ac.at · 20/08/2025
🫵 Ready to tackle the world’s most complex challenges? The Complexity Science Hub is looking for #PhD candidates eager to apply large-scale data analysis, quantitative models, and complexity science to shed light on pressing global issues. 📅 Apply by 11 November 2025 ℹ️ csh.ac.at/education/gr...
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Jari Saramäki @jsaramak.bsky.social · 01/08/2025
Yes, LABEL YOUR AXES
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Tobias Galla @tobiasgalla.bsky.social · 10/06/2025
4 postdoc positions in complex systems at IFISC, Palma de Mallorca. Call open until 20/10/25, but positions will be filled starting immediately. If interested, please apply now. Candidates must be EU citizens.
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Jari Saramäki @jsaramak.bsky.social · 06/06/2025
Sort of global (through an app), but quite unreliable and bound to change without warning
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Jari Saramäki @jsaramak.bsky.social · 06/06/2025
Compared to this trip, that sonification is far too orderly and organized. The beginning was more Zappa than Kraftwerk
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Jari Saramäki @jsaramak.bsky.social · 06/06/2025
It did, but the shortest path required 4 trains instead of 2: trains just dropped passengers at random Dutch stations on the way and told us to wait for the next one
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Jari Saramäki @jsaramak.bsky.social · 06/06/2025
Solution: my cognitive limits prevent me from taking a route involving 4 German regional trains and computing alternatives should any or those connections fail -> waiting for the shortest path to materialize.
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Jari Saramäki @jsaramak.bsky.social · 06/06/2025
Time-respecting path problem: getting by train to Düsseldorf. Your first train is cancelled. Should you wait for a direct connection (to be cancelled with probability p) or pick a route with many hops (p again per hop, but increasing number of alternatives). There must be a DAG for this #NetSci2025
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Alessia Galdeman @alessianetwork.bsky.social · 02/06/2025
If you're already at @netsciconf.bsky.social and you're wondering what that graph is doing on your badge, here's the reason! We will have a lightning talk on wednesday to explain the rules before the first coffee break, don't miss it!
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Jari Saramäki @jsaramak.bsky.social · 02/06/2025
Hi dagshop.xyz participants: the entrance is through Grote Gracht 90 (no-one knew this until a few minutes ago). We are on the ground floor left from the entrance (there is no sign) @netsci2025
dagshop.xyz
DAGSHOP’25 — A WORKSHOP ON DIRECTED ACYCLIC GRAPHS - Dagshop — a NetSci'25 satellite
DAGSHOP — A Workshop on directed acyclic graphs Time: June 2nd, 8:30-12:30, Location: Faculty of Arts and Social Sciences, Grote Gracht 76, hall 0.07 SCHEDULE Session 1: Chair Mikko Kivelä8:30 — 9:10 ...
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Nicholas Landry @nwlandry.bsky.social · 26/05/2025
New paper out! "A Blue Start: A large-scale pairwise and higher-order social network dataset" in collaboration with @cetaceanneeded.bsky.social, Ilya Amburg, @diesagar.bsky.social, and @foucaultwelles.bsky.social. Paper at arxiv.org/abs/2505.11608 and dataset at socialmediaarchive.org/record/78
arxiv.org
A Blue Start: A large-scale pairwise and higher-order social network dataset
Large-scale networks have been instrumental in shaping the way that we think about how individuals interact with one another, developing key insights in mathematical epidemiology, computational social...
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Jari Saramäki @jsaramak.bsky.social · 26/05/2025
DAGshop is almost here — less than a week to go! If you’re at NetSci, come explore the connections between temporal networks, causality, spacetime, quantum gravity, and more. dagshop.xyz
Logo for the DAGshop satellite
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Maximilian Schich @schichmax.bsky.social · 12/05/2025
Join us today! 🔬🎤🙋 #MártonKarsai of @weareceu.bsky.social on Socioeconomic patterns and their dynamics in social networks and language @cudanlab.bsky.social 2025-05-12 16:00-18:00 (Tallinn time) Zoom & details: cudan.tlu.ee/events/2025-... #CulturalDataAnalytics #Complexity #NetSci #CompSocSci
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Jari Saramäki @jsaramak.bsky.social · 03/05/2025
Tieteellisen kirjoittamisen aloituspaketti #tiedetaivas
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Kaarina Saramäki @ksaramaki.bsky.social · 03/05/2025
Minut nimitettiin jäseneksi Helsingin yliopiston tiedesäätiön valtuuskuntaan 3-vuotiskaudelle. Tiedesäätiö edistää ja tukee nuorten tieteenharjoittajien tutkimustyötä Helsingin yliopistossa. Olen nimityksestä todella iloinen, sillä tiede ja alma materini merkitsee minulle paljon.
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Jari Saramäki @jsaramak.bsky.social · 28/04/2025
Sama. En tiedä olisiko liikaa toivottu, että kolmesta arvioijasta edes yhdellä olisi edes yksi julkaisu hakemuksen tieteenalalta?
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Martin Rosvall @mrosvall.bsky.social · 17/04/2025
Registration is now open for IceLab Camp – a four-day off-site PhD course designed to train participants in asking research questions, laying the foundation for new multidisciplinary collaborations. www.umu.se/en/icelab/ca...
umu.se
IceLab Camp
Part of the Stress Response Modeling Research School, IceLab Camp is a four-day off-site PhD course that prepares its participants to create new inter- or multidisciplinary research by first teaching ...
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Jari Saramäki @jsaramak.bsky.social · 05/04/2025
Something got broken in my coding setup (several things were deprecated) and I had to ask ChatGPT for help. I complained to it that I feel old, and got this as the answer: "That’s not 'old' — that’s veteran-level :-)" This will be my new motto I think.
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Jari Saramäki @jsaramak.bsky.social · 28/02/2025
In other news, here is some new music with me producing and playing bass: music.youtube.com/playlist?lis...
Cover for the track Damage (All Undone)
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Henrikki Tenkanen @htenkanen.bsky.social · 24/02/2025
The deadline for applying to our PhD position in GeoAI & LLMs approaches soon! Apply by next Sunday 2nd March to our exciting PhD position! 🌐 💡 See more details below.
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Petter Holme @pholme.bsky.social · 09/02/2025
I channeled my inner Marvin Minsky to give a different perspective on AI science. It ended up being about how our lazy attitude toward our language stops science from its (utopian-level) full potential … and stuff. petterhol.me/2025/02/09/e...
petterhol.me
Essay time: AI and science’s happy ending
I’ve been a bit disappointed with the debate about the future use of AI in science. Either it has been short-sighted: “Wow, let’s try this thing we’ve always been doing, but…
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Jari Saramäki @jsaramak.bsky.social · 30/01/2025
Yes, and sometimes it’s good to let your subconsciousness do the work. Maybe I’ll write more about this on some occasion. But at least to me, the best ideas (including RQs and hypotheses) come when I am not actively looking for them. Reading books is slow, and slow is good!
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Jari Saramäki @jsaramak.bsky.social · 29/01/2025
How to choose a research question? Choosing which problems to work on is perhaps the hardest and most crucial part of science. It is also an invisible and underrated part.
jarisaramaki.fi
How to choose a research question?
Choosing which problems to work on is perhaps the hardest and most crucial part of science. It is also an invisible and underrated part.
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Jari Saramäki @jsaramak.bsky.social · 20/01/2025
We're organizing a NetSci'25 satellite workshop on Directed Acyclic Graphs — if you're working on, e.g., citation graphs, pedigrees, causality, temporal-network event graphs, network representations of spacetime, or any other areas where DAGs play a role, please contribute! www.dagshop.xyz
dagshop.xyz
DAGSHOP’25 — A WORKSHOP ON DIRECTED ACYCLIC GRAPHS - Dagshop — a NetSci'25 satellite
DAGSHOP — A Workshop on directed acyclic graphs Directed Acyclic Graphs (DAGs) appear in many contexts in network science, from citation networks and pedigrees to temporal-network event graphs and rep...
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NetSci 2026 @netsciconf.bsky.social · 03/12/2024
Here's a quick recap of the NetSci 2025 speakers announced so far: @lindadouw.bsky.social, @jsaramak.bsky.social, @zdeborova.bsky.social, Iza Romanowska, Sonia Kefi, Michael Macy, @manlius.bsky.social, Huijuan Wang. #NetSci2025
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Jari Saramäki @jsaramak.bsky.social · 01/12/2024
That is a tragically missed opportunity indeed
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Jari Saramäki @jsaramak.bsky.social · 01/12/2024
My LaTeX compiler duly and understandably complained about the \textbff{} command I entered, and now I am wondering whether I've accidentally invented some new term for computational social scientists working on smartphone ego-nets
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Martin Bauer @martinmbauer.bsky.social · 27/11/2024
The worst thing about writing grant applications is that they make you think about all the great stuff you could be working on if you wouldn’t need to write grant applications
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NetSci 2026 @netsciconf.bsky.social · 28/11/2024
📢 NetSci 2025 Speaker announcement: Jari Saramäki, Full Professor at the Department of Computer Science, Aalto University "Networks in Time and Space" #NetSci2025 @jsaramak.bsky.social
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Petter Holme @pholme.bsky.social · 27/11/2024
New paper in PNAS 📰🚨 Beyond a binary theorizing of prosociality www.pnas.org/doi/full/10....
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Maximilian Schich @schichmax.bsky.social · 17/11/2024
#NetSci is one of the most #awesome true #multidisciplinary conferences in existence. If your research deals with #complex #networks, and you are not part of the crowd yet, please consider submitting & participating. "All is Interaction" – A. v. Humboldt netsci2025.github.io/calls/ Please repost!
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Brian C. Keegan, Ph.D. @brianckeegan.com · 14/11/2024
Here is a @github.com repo where I will share tutorial notebooks on how to retrieve and analyze data from @bsky.app @atproto.com Feedback, suggestions, and contributions are welcome! github.com/brianckeegan...
github.com
GitHub - brianckeegan/bluesky-datascience: Exploratory notebooks for data science using Bluesky data
Exploratory notebooks for data science using Bluesky data - brianckeegan/bluesky-datascience
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Jari Saramäki @jsaramak.bsky.social · 14/11/2024
🙋‍♂️
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Jari Saramäki @jsaramak.bsky.social · 13/11/2024
I used the MIDIFile package (midiutil.readthedocs.io/en/1.2.1/) and then wrote a layer of code on top that assigns MIDI notes to interaction events
midiutil.readthedocs.io
MIDIUtil — MIDIUtil 1.1.1 documentation
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Jari Saramäki @jsaramak.bsky.social · 13/11/2024
So many new people here, brilliant!! Complexity people interested in art meets science — here's some music to start your week with, composed using temporal networks of baboon interactions from the SocioPatterns project: jarisaramaki.fi/2024/09/30/b...
jarisaramaki.fi
Baboon Song — a Temporal-Network Composition
Here’s something playful for you — Baboon Song, a track I composed using temporal networks: I took the Baboons’ interactions dataset from SocioPatterns, turned some baboon interaction t…
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Andrea Failla @andreajpg.bsky.social · 14/05/2024
🚨 ALERT 🚨 Are you looking for (recent) longitudinal social media data? We recently released a huge #bluesky anonymized #dataset of social interactions and contents covering 80% of the service users for 13 months. Available on Zenodo! Read more: arxiv.org/abs/2404.18984 #academicsky #NetSci
arxiv.org
"I'm in the Bluesky Tonight": Insights from a Year...
Pollution of online social spaces caused by rampaging d/misinformation is a growing societal concern. However, recent decisions to reduce access to social media APIs are causing a shortage of...
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Sergi Valverde @svalver.bsky.social · 12/11/2024
A starter pack for researchers interested in #ComplexSystems. Complex system science investigates how interactions among multiple parts lead to collective behaviour, as well as how the system interacts and forms links with its environment - please add your name! go.bsky.app/FNYZ61y
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Jari Saramäki @jsaramak.bsky.social · 12/11/2024
Nice to see Bluesky finally taking off! Hello all new followers! For those interested in scientific writing, here are some blog posts: jarisaramaki.fi/tag/scientif...
jarisaramaki.fi
scientific writing – Jari Saramäki
Posts about scientific writing written by Jari Saramäki
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Jari Saramäki @jsaramak.bsky.social · 30/09/2024
Thank you, it was fun writing it
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Jari Saramäki @jsaramak.bsky.social · 30/09/2024
More data sonification fun — an entire track written around the @sociopatterns Baboons data set jarisaramaki.fi/2024/09/30/b... users.aalto.fi/~jsaramak/ba...
jarisaramaki.fi
Baboon Song — a Temporal-Network Composition
Here’s something playful for you — baboon_song.mp3, a song I composed using temporal networks. I took the Baboons’ interactions dataset from SocioPatterns, turned some baboon interactio…
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Jari Saramäki @jsaramak.bsky.social · 05/06/2024
Haluaisin vaihtaa sen neropatin kanssa pari sanaa, jonka mielestä on hyvä idea, että yliopiston Outlook-sähköpostijärjestelmä herjaa koko ajan huutomerkillä ja punaisella, että lähettäjä/vastaanottaja on organisaatiosi ulkopuolelta. Jotain on tässä ymmärretty pahasti väärin.
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Abbas K. Rizi @abbasrizi.bsky.social · 13/05/2024
I interviewed @jsaramak.bsky.social on his journey in #network_science. We discussed how to formulate impactful research questions, the importance of collaboration, and his advice for younger researchers. youtu.be/HwdZS6Fy8X8
youtu.be
Crafting Questions & Linking Thoughts: Jari Saramäki on Network Science Research
Join us for an insightful discussion with Jari Saramäki, a renowned expert in network science, where he shares his personal journey into the field. Jari talk...
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Jari Saramäki @jsaramak.bsky.social · 05/04/2024
When I open my next postdoc call, I will attach these photos of April weather in Finland. Limits the pool of applicants to extremely motivated people. Or insane people, come to think of it…
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Jari Saramäki @jsaramak.bsky.social · 19/03/2024
The sound of temporal networks: jarisaramaki.fi/2024/03/19/t...
jarisaramaki.fi
The Sound of Temporal Networks
I recently gave a talk at the Complexity, Aesthetics, and Sonification workshop in Bielefeld, Germany, organized by Thilo Gross, Maximilian Schich, and Cristián Huepe. A really great workshop with lot...
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Thilo Gross @thilogross.bsky.social · 01/03/2024
JOBS: I have several open shorter-term postdoc positions in my lab that focus on the intersection of networks, artitficial intelligence and biodiversity. Some of these would be particularly suitable for people with Bio backgrounds, others are more Physicsy. DM me if interested.
Thilo on a cliff in Devon
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Jari Saramäki @jsaramak.bsky.social · 01/03/2024
Here's a suspense movie soundtrack masterpiece: one person's phone calls on piano and text messages on upright bass, pitches = different friends (no degrees yet). Still jazzy, I'll dig out the 808s & distorted square waves next users.aalto.fi/~jsaramak/eg...
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Jari Saramäki @jsaramak.bsky.social · 01/03/2024
Yep, and here we have it in time! Of course, instead of a model, I can use real temporal networks (like, calls) — have done so already and indeed there's a funky daily/weekly rhythm embedded in all the burstiness! Sick beats coming up here shortly :-)
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Jari Saramäki @jsaramak.bsky.social · 01/03/2024
Thanks for the degree idea! This is an ER, but yeah, for a broader degree distribution hubs=low, loud & low-k nodes=high, soft, shimmery might sound great!!
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Jari Saramäki @jsaramak.bsky.social · 01/03/2024
The jazziness comes from time-domain power laws; burstiness, no real regularity. To me, the drumming sounds very human & intentional: entirely random timings wouldn’t. There’s suspense!
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