Anita Graser 🇪🇺🇺🇦🇬🇪

SEMANTiCS Conference (@semantics@sigmoid.social) 100 Posts, 38 Following, 124 Followers · SEMANTiCS conference is the meeting place for professionals who make semantic computing work, and understand its benefits and know its limitations.

Very excited that our most recent paper on #ExplainableAI & #ActiveLearning has been accepted to the #SENTIS workshop at #semanticsconf https://sigmoid.social/@semantics

https://semsys.ai.wu.ac.at/sentis2025/

Street network sub-patterns and travel mode Urban morphology has long been recognized as a factor shaping human mobility, yet comparative and formal classifications of urban form across metropolitan areas remain limited. Building on theoretical principles of urban structure and advances in unsupervised learning, we systematically classified the built environment of nine U.S. metropolitan areas using structural indicators such as density, connectivity, and spatial configuration. The resulting morphological types were linked to mobility patterns through descriptive statistics, marginal effects estimation, and post hoc statistical testing. Here we show that distinct urban forms are systematically associated with different mobility behaviors, such as reticular morphologies being linked to significantly higher public transport use (marginal effect = 0.49) and reduced car dependence (-0.41), while organic forms are associated with increased car usage (0.44), and substantial declines in public transport (-0.47) and active mobility (-0.30). These effects are statistically robust (p < 1e-19), highlighting that the spatial configuration of urban areas plays a fundamental role in shaping transportation choices. Our findings extend previous work by offering a reproducible framework for classifying urban form and demonstrate the added value of morphological analysis in comparative urban research. These results suggest that urban form should be treated as a key variable in mobility planning and provide empirical support for incorporating spatial typologies into sustainable urban policy design.

Street network sub-patterns and travel mode
https://arxiv.org/abs/2507.19648

Upcoming special issue in Urban Planning (cogitatio): Citizen-Centric Urban Planning Through Participatory Sensing Data and Digital Tools
https://www.cogitatiopress.com/urbanplanning/issue/futureissues#i530
Abstract submission deadline in December.

Chapter 15: Ecological Modeling & Geocomputation 🌱🗺️

Modeling the floristic gradient to reveal distinctive vegetation belts! 📌 Learn spatial modeling techniques with random forests & hyperparameter tuning to analyze ecological data in R.

🔗 https://r.geocompx.org/eco

#rstats #rspatial #geocompx

Interesting #MobilityDataAnalytics read:

📄 https://www.sciencedirect.com/science/article/pii/S0966692325002698

Featuring #MobilityDB, #scikitmobility, @movingpandas, #trackintel and #dbt

Add datetime field example by anitagraser · Pull Request #10106 · qgis/QGIS-Documentation Goal: Explain how to create datetime fields in PyQGIS Ticket(s): #10089 Backport to LTR documentation is requested For Qt5, the snippets would be: QgsField("birthday", QVariant.DateTi...

Do you have a #QGIS with #Qt6 already? Could you help me test if this new snippet for adding datetime fields works:

https://github.com/qgis/QGIS-Documentation/pull/10106/files

#gischat

New R package: rgeomorphon 📦 by Andrew Brown

Classifies terrain forms using a parallel C++ implementation of the geomorphon algorithm.

🔗 https://github.com/brownag/rgeomorphon

#RStats #GIS #TerrainAnalysis #RemoteSensing #RSpatial

Bild zeigt Linuxhotel im Sonnenschein. Schriftzug: FOSSGIS-OSM-Communitytreffen, 19.-21. September 2025 im Linux-Hotel in Essen, Anmeldung im FOSSGIS-Wiki + URL zur Wikiseite; FOSSGIS e.V. Logo, OpenStreetMap-Logo. #OSM #FOSSGIS #OpenStreetMap #OSGeo #OpenSource #Community

Vom 19. – 21. September 2025 findet das nächste FOSSGIS-OSM-Communitytreffen @FOSSGISeV im @linuxhotel in Essen statt.

Wer teilnehmen möchte, trägt sich im Wiki ein
https://www.fossgis.de/wiki/FOSSGIS_OSM_Communitytreffen_2025_Nummer_24 oder liest die […]

[Original post on mastodon.online]

🎂 Happy Birthday, #GRASS! 🎉

A toast 🥂 to the incredible science-based, open-source geospatial processing engine and to all the contributors and developers who make it possible! 🙌 🚀

Only until end of July: #Geospatial ebook sale at @locatepress

Use coupon code: SUMMERSUN25

for your 10% discount on any e-book, including the #Spanish edition of Discover QGIS

https://mailchi.mp/locatepress/locate-press-summer-sale-8340239?e=e6235e72b6

#gischat #qgis #leaflet #pgrouting

@grassgis

42 years of GRASS - Happy Birthday!

I'm so proud to be part of this amazing international community 🤩 🚀

#grass #osgeo #foss #opensource #geospatial

FOSS4G Europe 2025 in Mostar, Bosnia and Herzegovina :: QWAST-GIS FOSS4G Europe 2025 was organised in Mostar, Bosnia and Herzegovina from 14 - 20 July 2025. The first two days were packed with interesting workshops, followed by three days of inspiring talks from the amazing open source geo community. This blog presents my FOSS4G Europe 2025 journey.

Just came back from #FOSS4GE 2025 in Mostar by public transport 🚉
From train delays to inspiring workshops, talks & riverside drinks, it was a ride!

📖 Read the full story: https://www.qwast-gis.com/l/foss4g-europe-2025-in-mostar-bosnia-and-herzegovina/

#FOSS4GEurope #OSGeo #QGIS #GIS #FOSS4G

The book cover

Have you read Geocomputation with R?📘
If you found it helpful, we’d really appreciate a quick review — it helps others find the book too!

Goodreads: https://www.goodreads.com/book/show/214736719-geocomputation-with-r
Amazon […]

[Original post on fosstodon.org]

In unserem Webinar haben wir gezeigt, wie großflächige Parkplätze im Stadtgebiet mithilfe offener Geodaten und Open-Source-Software systematisch erfasst, bewertet und dokumentiert werden können – als Grundlage für nachhaltige Stadtentwicklung, Flächennutzung und Klimaanpassung.

👉 Hier geht’s […]

QGIS2Mapbender a QGIS plugin to administrate Mapbender

I presented #Mapbender at the #FOSS4GE2025 conference in Mostar & demonstrated how you can create great geoportal applications with Mapbender & talked about the news.

I also introduced #QGIS2Mapbender - a #QGIS plugin that publishes your QGIS Project as QGIS […]

[Original post on mastodon.social]

The new :qgis: @qgis screenshot gallery is ready for you contributions!

https://hub.qgis.org/screenshots/?sort=upload_date&order=desc

It's a new place to share visuals that don't fit in the map gallery

#GISChat #QGIS

In today's #gleo news: wind data!

Or, more technically: a 2-band raster covering the globe and properly warped (EPSG:4326→EPSG:3857) containing UV speed data, visualised as a particle trail simulation.

Thanks to the #FOSS4GE2025 for providing the […]

[Original post on mastodon.social]

#FOSS4GAsia 2026 — Asia’s biggest open-source GIS event — is happening in Nashik, India January 2026!

🎥 Watch the full announcement video: https://youtu.be/26RLDHdoR0Y

#GISChat #OSGEO #FOSS4G #Asia #India

Chapter 12: Spatial Statistical Learning 📊🌍

Boost your spatial models! 📌 Learn about spatial autocorrelation, cross-validation, and machine learning with `mlr3`, using a real-world landslide prediction case study.

🔗 https://r.geocompx.org/spatial-cv

#rstats #rspatial #geocompx

Extracting Realistic Pedestrian, Cycling, and Driving Street Networks from OpenStreetMap
https://isprs-archives.copernicus.org/articles/XLVIII-4-W13-2025/103/2025/

#FOSS4G-E Streams are live: https://2025.europe.foss4g.org/livestream/

I'm currently working on the first #CIVIS asynchronous course on "Interdisciplinary Perspectives on Sustainable Mobility".
Lots of work. Lots of fun. Lots of excitement.

Screenshot of a QGIS screenshots uploaded to the screenshot gallery and now under review.

Time to get creative and upload some #QGIS screenshots

https://hub.qgis.org/screenshots

#GISChat #PartyLikeAGISNerd

The new :qgis: @qgis screenshot gallery is ready for you contributions!

https://hub.qgis.org/screenshots/?sort=upload_date&order=desc

It's a new place to share visuals that don't fit in the map gallery

#GISChat #QGIS

FOSS4G Europe 2025 Mostar

We hope you enjoyed the workshop about #PostgreSQL #PostGIS at #FOSS4GE2025 with @Enock4seth and me.

You find the workshop material at […]

[Original post on mastodon.social]

FOSS4G Europe 2025

WEe hope you enjoyed the workshop about #OSGeoLive at #FOSS4GE2025 with @Enock4seth and me.

You find the workshop material at: https://github.com/astroidex/foss4g-europe-2025-workshop-sdi-with-open-source-using-osgeolive

Enjoy the #FOSS4GE conference and […]

[Original post on mastodon.social]

There's some great explanation for how map projections work in this short, but it's too hot today for me to work it out 😅

https://youtube.com/shorts/hrGJIk7zpho?si=xITVIzbJhaNr_qNS

#GISChat

MSc #Geoinformatics @unisalzburg.bsky.social - recognized with another #DoubleDegree program with the National University of Uzbekistan - looking forward to excellent and ambitious students!

map excerpt of the Vinkeveense Plassen, with many long, thin straight lines of green land cutting across a suspiciously pie-slice-shaped pond, next to a bunch of long, thin straight lines of blue cutting across the fields

"geometry glitch in the map data, or just the Dutch again?"

Springer Nature book on machine learning is full of made-up citations Would you pay $169 for an introductory ebook on machine learning with citations that appear to be made up? If not, you might want to pass on purchasing Mastering Machine Learning: From Basics to Advanced, published by Springer Nature in April. Based on a tip from a reader, we checked 18 of the 46 citations … Continue reading Springer Nature book on machine learning is full of made-up citations

$169 book published by Springer Nature is full of made-up citations https://retractionwatch.com/2025/06/30/springer-nature-book-on-machine-learning-is-full-of-made-up-citations/