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Tuomas Väisänen 📼🧟

@waeiski.bsky.social

1.3K followers 2.1K following 210 posts

🧑‍🎓 Postdoc & computational urban geographer interested in #GIScience #UrbanStudies #Multilingualism #Diversity #Mobility #Geography #BigData + #Linux. 💻 @digigeolab.bsky.social 🎓 @helsinki.fi 🌍 Helsinki, Finland https://waeiski.github.io

waeiski.github.io

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Tuomas Väisänen 📼🧟 @waeiski.bsky.social · Mar 26

🚨🌍 NEW ARTICLE 🌍🚨

We geocoded the #mobility of over 2 million #Erasmus students across #Europe from 2014 to 2022 with @miladmzdh.bsky.social, Oula Inkeröinen & @ollejarv.bsky.social.

doi.org/10.1038/s415...

@mobi-twin-project.bsky.social
@digigeolab.bsky.social
@springernature.com

#GIScience

Schematic of the workflow in the article. Leftmost panel shows a representation of the input data with high diversity in the types of place names resulting from typographical errors, character encoding errors, language-specific spellings and use of different scripts. The centre panel shows the general workflow from preprocessing to geocoding and finally to validation. The rightmost panel shows the spatially enriched Erasmus+ mobility data on a map with edge-bundled flows representing different intensities of student mobility across NUTS 3 regions in Europe.

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Tuomas Väisänen 📼🧟 @waeiski.bsky.social · 8d

Tinpot dictatorship coming to North America

Aaron Rupar @atrupar.com · 8d

Trump: "I'm gonna be meeting with generals and admirals and with leaders, and if I don't like somebody, I'm gonna fire them right on the spot."

Reposted by Tuomas Väisänen 📼🧟

miladmzdh.bsky.social @miladmzdh.bsky.social · 14d

Urban planners should not be afraid of AI! 🏙️🤖

AI won’t replace planners, but it is reshaping how we imagine, design & govern our cities. The barrier isn’t tech, it’s mindset.

Read my new piece in Cities: tinyurl.com/3jtx2xrd

#UrbanPlanning #AI #FutureOfCities

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Reposted by Tuomas Väisänen 📼🧟

Oleksandr Karasov @karasov.bsky.social · 20d

How can we accurately map where people live and work when they frequently cross national borders? Traditional surveys miss complexity, mobile network operators data are hard to get across borders, and individual social-media traces are sparse—yet social media is inherently transnational.

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Tuomas Väisänen 📼🧟 @waeiski.bsky.social · 25d

I also presented yesterday some preliminary work on exploring structural changes in the #Erasmus student mobility network in #Europe.

Student mobility has rebounded, and the structure has changed, with larger regional cities becoming more relevant, and Brexit removing the UK's relevance in Erasmus.

Tuomas Väisänen 📼🧟 @waeiski.bsky.social · 25d

To round off #ECTQG it is @miladmzdh.bsky.social presenting his work on understanding the importance of regional connectivity using multiple mobility flows.

@digigeolab.bsky.social
@mobi-twin-project.bsky.social

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Tuomas Väisänen 📼🧟 @waeiski.bsky.social · 25d

In the final session of #ECTQG we have @karasov.bsky.social presenting his work on measuring the quality of time spent in nature. Very interesting stuff!

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Tuomas Väisänen 📼🧟 @waeiski.bsky.social · 25d

Next up we have @ollejarv.bsky.social presenting his work in using mobility data to assess #CrossBorder integration across #Europe at #ECTQG. New approaches are needed to better understand the cross-border regions from the perspectives of people and social interactions. @digigeolab.bsky.social

Olle presenting in a room full of people.

Tuomas Väisänen 📼🧟 @waeiski.bsky.social · 25d

Good to see Modupe Osunkoya presenting her work on dynamic #urban #vitality in #Tallinn at the #ECTQG conference. It is a nice collaboration with her and Jenni Partanen from #TalTech university and @digigeolab.bsky.social

Modupe presenting her work for a room full of people.

Tuomas Väisänen 📼🧟 @waeiski.bsky.social · 26d

The second day at #ECTQG starts with a keynote from @tuulitoivonen.bsky.social on the current state and future directions of #mobility and #accessibility #research. @digigeolab.bsky.social

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Reposted by Tuomas Väisänen 📼🧟

John Warner @biblioracle.bsky.social · Sep 5

This person is a charlatan. Why is there so much uncritical coverage of this obvious nonsense? Where is the actual journalism?

The New York Times @nytimes.com · Sep 5

A.I. is changing classrooms. We spoke to the co-founder of Alpha Schools about how her private K-12 schools are using A.I. to generate personalized lesson plans and enabling teachers to spend their time motivating rather than teaching students. nyti.ms/3JHIZub

$MackKenzie Price, co-founder of Alpha Schools, in a dark blue shirt and orange pants sits on a wooden desk in front of a window, smiling slightly at the camera. Quote reads: "Our kids are crushing their academics, and they're doing it in a fraction of the time."$

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Reposted by Tuomas Väisänen 📼🧟

Kari Haakana @karihaakana.net · Sep 5

"lisäarvopohjainen realismi"😘 . Muutenkin erinomainen juttu. www.apu.fi/artikkelit/i...

Datakeskus ei ole lottovoitto, vaan merkki rappiosta – Ennen Suomi myi Nokiaa, nyt kärkymme murusia Googlen pöydästä

Tuottaja Sammeli Heikkinen on Ilonpilaaja, joka kertoo miksi taas kerran riemuitaan aivan turhaan.

www.apu.fi

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Reposted by Tuomas Väisänen 📼🧟

Jussi Ahokas @ahokasjaj.bsky.social · Sep 5

Ei auttanut henkilön vaihtaminen. Yhdenvertaisuusvaltuutettu edelleen valehtelee!

#politiikka

USU: Yhdenvertaisuusvaltuutettu pitää Teemu Keskisarjan puheita rasistisina

Yhdenvertaisuusvaltuutetulle on tehty useita kanteluita Keskisarjan puheista.

yle.fi

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Tuomas Väisänen 📼🧟 @waeiski.bsky.social · Sep 4

Hei #sinitaivas tarvitsemme osanottajia tulevaan työpajaamme!

Jos aluekehitys, aluepolitiikka ja muuttoliikkeet kiinnostavat etenkin kun kyseessä on #Suomi ja tarkemmin itäiset ja pohjoiset osat, niin mukaan vaan!

#Finland #Finnish #Region #Europe #EU

Digital Geography Lab @digigeolab.bsky.social · Sep 4

Hei sinä Itä- tai Pohjois-Suomalainen!

Kiinnostaako sinua kotiseutusi aluekehitys ja tulevaisuus? Tule mukaan työpajaamme!

🗓️ Syyskuun 12. päivä 2025
⏰ Kello 11:00 – 12:30

Osallistumistiedot blogissamme:

blogs.helsinki.fi/digital-geog...

#Savo #Lappi #Kainuu #Alue #Tulevaisuus #Mikkeli

English: A map of Europe and its NUTS 2 regions with Eastern and Northern Finland highlighted. At the bottom there are the logos of Mobi-Twin research project and the European Union.

Suomeksi: Kartta Euroopasta NUTS 2 -alueineen ja Itä- ja Pohjois-Suomen alue on korostettuna. Alareunassa on Mobi-Twin -tutkimushankkeen ja Euroopan Unionin logot.

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Reposted by Tuomas Väisänen 📼🧟

Digital Geography Lab @digigeolab.bsky.social · Sep 4

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Tuomas Väisänen 📼🧟 @waeiski.bsky.social · Sep 3

I bet @htenkanen.bsky.social @eliaswillberg.bsky.social or @christophfink.com will know. I've not used those GTFS files..m

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Reposted by Tuomas Väisänen 📼🧟

Simon Kuestenmacher @simongerman600.bsky.social · Sep 3

It's the humidity that gets you! Here is the Humidity Belt of the US for your viewing pleasure.

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Reposted by Tuomas Väisänen 📼🧟

Conrad Hackett @conradhackett.bsky.social · Sep 2

Below is my new post about our Three Stages of Religious Decline paper (www.nature.com/articles/s41...).

We argue that a similar process of decline affects countries on every populated continent, including countries in which Christianity, Islam, Buddhism or Hinduism is the largest religion.

A🧵

How religion declines around the world

A country’s religious affiliation tends to decline in three transitional stages that unfold across generations, a new paper using Center data proposes.

www.pewresearch.org

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Tuomas Väisänen 📼🧟 @waeiski.bsky.social · Sep 2

What a cool conference #ERSA2025 was! Many sessions from @mobi-twin-project.bsky.social project, lots of new people, interesting research, and great food!

It was my first time at #ERSA and hopefully one of many to come!

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Tuomas Väisänen 📼🧟 @waeiski.bsky.social · Aug 28

Continuing with #CrossBorder research at #ERSA2025 is Elias Günther presenting his work on data issues in crossborder studies conducted in #CrossGov, an #ESPON project.

Tuomas Väisänen 📼🧟 @waeiski.bsky.social · Aug 28

Wrapping up the second day of #ERSA2025 we have @ollejarv.bsky.social from @digigeolab.bsky.social presenting his work on using #BigData describing #mobility of people to assess #CrossBorder integration in #Europe.

Olle explaining how to delineate functional border regions using mobile big data and kernel density estimation.

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Reposted by Tuomas Väisänen 📼🧟

UNITED24 @u24.gov.ua · Aug 28

This is what being a kid looks like when your neighbor is russia🧵

We can't undo the trauma russian terrorists cause Ukrainian children, but we can help save their lives:
u24.gov.ua/nafo-dark-ni...

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Tuomas Väisänen 📼🧟 @waeiski.bsky.social · Aug 28

The second day of #ERSA2025 starts with @anpanori.bsky.social presenting her work in @mobi-twin-project.bsky.social on regional attractiveness with @vicenteroyuela.bsky.social and @jlopeztamayo.bsky.social.

#RegionalScience #Geography #GreenTransition #Digitalization #TwinTransition #Europe

Anastasia presenting in a conference room full of people.

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Reposted by Tuomas Väisänen 📼🧟

Anastasia Panori🍀 @anpanori.bsky.social · Aug 27

@waeiski.bsky.social presenting our findings on changing #regional attractiveness during the #twintransition based on the @mobi-twin-project.bsky.social results!

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Tuomas Väisänen 📼🧟 @waeiski.bsky.social · Aug 27

Our session in #ERSA2025 starts with Luca Alfieri's presentation on flexible working arrangements' impact on migration decisions in #Lombardy Italy. This work is also an output from the @mobi-twin-project.bsky.social project.

Luca starting his presentation. In the background you can see the title slide and Luca to the left. In the foreground there are some conference room chairs.

Tuomas Väisänen 📼🧟 @waeiski.bsky.social · Aug 27

Next up Manos Matsaganis presented his work, also from @mobi-twin-project.bsky.social, on using microsimulation to explore how new social benefit policies in Greece and Italy reduced child poverty.

#ERSA #ERSA2025

Manos presenting his work in a conference room at ERSA conference.

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