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**Anita Graser** @underdarkGIS@fosstodon.org · May 21

Anita Graser @underdarkGIS@fosstodon.org

We've done it

Finally, there's a canonical paper on the #QGIS project, its history, workings, and challenges: https://www.sciencedirect.com/science/article/pii/S2666389925001138

Thanks to @timlinux and @mbernasocchi for joining me in trying to tell the QGIS story

www.sciencedirect.comThe QGIS project: Spatial without compromiseThe QGIS project is a prominent open-source geographic information system (GIS) that has evolved over two decades, contributing significantly to the g…

#OSGeo #GISChat #GIScience

**Tuomas Väisänen** @waeiski@vis.social · May 8

May 8

Tuomas Väisänen @waeiski@vis.social

The second day of #LBS2025 conference is about to start, and so is the onslaught of presentations from @digigeolab members and alumni on topics like #mobility #BigData #GIScience #MachineLearning #NatureRecreation #Segregation #EcosystemServices #Geography

I have the dubious honor of the very last presentation of the day, acting as the firewall between the scientific program and the conference dinner. Let's see how many turn up

The scientific entourage of the Digital Geography Lab at the Location Based Services conference in Espoo, Finland. The group is standing in front of the Dipoli building of Aalto University.

Front row from the left: Henrikki Tenkanen, Davi Gressler, Leyi Xu

Back row from the left: Oleksandr Karasov, Milad Malekzadeh, Robert Klein, Tatu Leppämäki, Matti Hästbacka and yours truly.

Replied in thread

**OpenHistoricalMap** @ohm@mapstodon.space · May 6 *

May 6 *

OpenHistoricalMap @ohm@mapstodon.space

@grimalkina Next month’s #StateOfTheMapUS will have a healthy mix of the human and tech sides, both grassroots and institutional, that would be relevant to those in or adjacent to #GIScience. Our friends at @OpenStreetMapUS offer discounts for academic affiliation, and they just started raising funds to hopefully offer scholarships for affected government employees too. https://en.osm.town/@OpenStreetMapUS/114457256592594448

OSM Town | Mapstodon for OpenStreetMapOSM US (@OpenStreetMapUS@en.osm.town)Attached: 1 image Many government agencies have seen recent reductions in spending, limiting participation in conferences like SotM US. Events like ours are critical for building relationships and sharing knowledge. Government partners are valued stakeholders in collaborations for #opendata. OSM US wants to fill that gap, and we need your help! This fund will support scholarships for US-based current and recent government employees to attend #StateoftheMapUS2025. 🔗 https://openstreetmap.app.neoncrm.com/forms/-sotmus-gov-fund

**Tatu Leppämäki** @tadusko@mstdn.social · Mar 28

Mar 28

Tatu Leppämäki @tadusko@mstdn.social

NEW ARTICLE

How many photos are uploaded to Flickr? Where? By who? Why does any of it matter? We explore the rise and fall of #Flickr in this @digigeolab paper by yours truly, Vuokko Heikinheimo, @eklund_jo, Anna Hausmann & @tuuli – now out in the Journal of Outdoor Recreation and Tourism.

Article: https://authors.elsevier.com/sd/article/S2213-0780(25)00026-X

Thread

Distribution of the use of Flickr. Three heat maps that show globes roughly centered in Europe and Africa, South-East Asia and the Americas. Use is centered in Europe and North America, and urban areas.

#giscience #geography #gis

**Tuomas Väisänen** @waeiski@vis.social · Mar 26 *

Mar 26 *

Tuomas Väisänen @waeiski@vis.social

NEW ARTICLE

We geocoded the #mobility of over 2 million #Erasmus students across #Europe from 2014 to 2022 with @miladmzdh Oula Inkeröinen & Olle Järv. The data descriptor article is published in #ScientificData, and is an output from the #MobiTwin project.

https://doi.org/10.1038/s41597-025-04789-0

@digigeolab

Schematic chart of the work. On the left, there is a representation of the diversity of place names in the Erasmus+ data with typographical errors, national spellings, encoding errors, and use of different scripts. In the centre panel, the general workflow for geocoding the data is presented showing three main steps: preprocessing, geocoding, and validation. In the final rightmost panel, one can see the spatially enriched student mobility flows across Europe. Major flows are between regions in the UK, Ireland, France, Germany, Spain, Italy and other larger European countries.

#GIScience #Geospatial #GIS

**Tuomas Väisänen** @waeiski@vis.social · Nov 9, 2023

Nov 9, 2023

Tuomas Väisänen @waeiski@vis.social

Tomorrow is my #PhD #defence

Title: "Diversity of Places and People: Using big data to understand languages and activities across geographical space"

Opponent: @grantdmckenzie
Custos: @tuuli

When: 12 o'clock (GMT+2)
Where: Festive hall of the Language Center, University of Helsinki
Stream: https://video.helsinki.fi/unitube/live-stream.html?room=l13

@digigeolab

The cover of my PhD book. On the front there is a map of the Helsinki Metropolitan Area with a visualization that shows the geographical distribution of linguistic diversity as measured by several metrics.

#urban #geography #GIScience

**Tuomas Väisänen** @waeiski@vis.social · Oct 13, 2023

Oct 13, 2023

Tuomas Väisänen @waeiski@vis.social

My final #PhD paper:

“Capturing urban diversity through languages: long-term changes in multilingual residential neighbourhoods in the Helsinki Metropolitan Area”

with Olle Järv, @tuuli & @tuomo is OUT NOW in Population, Space and Place! Find the paper from here: https://doi.org/10.1002/psp.2717

@digigeolab

A map series showing the spatio-temporal patterns of linguistic diversity in the Helsinki Metropolitan Area in 1987, 2003 and 2019. The top row shows the number of unique languages of the residents within 250 m grid cells. The middle row shows Shannon entropy of the linguistic diversity with the same spatial unit. The bottom row shows statistically significant Moran's I clusters of linguistic diversity as measured by Shannon entropy.

#UrbanGeography #Segregation #Integration

**Eftychia Koukouraki** @eftyk@mastodon.social · Sep 7, 2023

Sep 7, 2023

Eftychia Koukouraki @eftyk@mastodon.social

Very happy to announce that our exploratory study about map #reproducibility in geoscientific publications is now online: https://doi.org/10.4230/LIPIcs.GIScience.2023.6.

I will be presenting our key findings and the journey to reach them in the upcoming #GIScience2023 conference! If you are attending and interested in #reproducible research, come by and join the discussion :)

drops.dagstuhl.deDROPS - Map Reproducibility in Geoscientific Publications: An Exploratory Study

#giscience #giscience_conf #map