Prof. Data Engineering and GISTech @OST_Informatik. Director @IFSRapperswil. Data Scout and Enabler - Formerly "Open Whatever"! [email protected]
Switzerland
Joined July 2008
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Stefan Keller retweeted
🎉 #NACIS2025 Registration is Open! 🎉
Head over to nacis.org/annual-meeting/cur… to register at the member or student rate.
Not a member yet? You can join or register as a non-member, too!
🕓Early-bird deadline: Oct 4
🏨Don’t forget to book your hotel - the room block fills up fast.
Stefan Keller retweeted
Für die Vereinheitlichung ihrer Geodaten brauchen Schweizer Verwaltungen ein spezielles Tool. Dieses kommt aus Kanada, kostet viel Geld und ist laut @eoperationsCH alternativlos.
inside-it.ch/eoperations-kau…
Stefan Keller retweeted
Buchtipps: Kinder & Kartografie geoobserver.de/2025/04/14/bu… #gistribe #gischat #fossgis #foss4g #OSGeo #spatial #geospatial #opensource #gis #geo #geoObserver pls RT @BDVI_Bbg @bdvi_verband @sfkeller
Stefan Keller retweeted
Today we're launching database.build 2.0, the in-browser Postgres sandbox with AI assistance - now with bring-your-own-LLM 🚀
Stefan Keller retweeted
A Christmas present for SQL standard lovers?
Part 1 is available for free again.
standards.iso.org/ittf/Publi…
The last edition that was available for free was 2011, AFAIK. And that disappeared when 2016 was released.
Merry Christmas :)
Stefan Keller retweeted
Si quieres ver las diferentes cuencas hidrográficas con datos de #OpenStreetMap, echa un vistazo a WaterWayMap waterwaymap.org/#map=4.71/40…
Stefan Keller retweeted
The scraping of content for AI training makes some changes required. I'll publish less on my website and RSS feed. The mailing lists will probably stay the same for the time being. If you want to still get everything, subscribe here:
winand.at/lists
Stefan Keller retweeted
We'll soon share the latest OSM statistics daily, weekly and monthly.
This will cover:
- Number of users
- Number of users that edited nodes or uploaded GPX
- Top 10 editors/contributors
#OpenStreetMap #OSM #OpenData #OSMstats
Stefan Keller retweeted
#30DayMapChallenge Day 20:
🛣️ How up-to-date is road data in #OpenStreetMap?
This map shows the recency (“currentness”) of edits to #OSM road data, a crucial factor for data quality.
🗺️created by Benjamin Herfort et al. with the #ohsome quality API: tinyurl.com/ohsome
#OpenStreetMap inside
Day 20 #30DayMapChallenge - OpenStreetMap
Todays map is probably interesting to anyone who wants a map of US retail destinations. It is built from a variety of data including OSM using in #rstats and with an interactive website.
buff.ly/3YKBGFK
#OpenStreetMap inside incl. #POI
Day 20 of #30DayMapChallenge: OpenStreetMap!
We used OSM road networks for walking routes, POI data for supermarket locations, and greyscale background map to show areas in Sydney accessible within 45 mins by walking & public transport. All run through TRACC! #GIS #MapChallenge
#OpenStreetMap inside
#OpenStreetMap inside
I just published #30DayMapChallenge 2024-Day 20: 20-Nov-2024: OpenStreetMap link.medium.com/y2qqQqN8FOb
Map of Chennai showing locations for Badminton, Cricket, Football, Hockey, Tennis and Volley Ball pitches as extracted from "Leisure" layer of OpenStreetMap
#FME @SafeSoftware
#OpenStreetMap inside
#30DayMapChallenge | Day 20 Data: OSM | Library Branches
Edited OSM to make the data for @madisonpubliclibrary branches in @openstreetmapus more consistent in name, operator, + opening hours. Not an elaborate visual, but did learn about HTML/CSS properties in @qgis labels!
#OpenStreetMap inside
#30DayMapChallenge · Day 20 · OpenStreetMap. What better way to showcase the richness of OSM data than to have ten layers of data over shaded relief? :)
#rayshader adventures, an #rstats tale