A geospatial career journey
In the 18+ months since I stepped back into the world of geospatial consulting and services, one of the most striking things I have noticed is the seemingly increased tribalism in the geospatial space. Maybe I shouldn’t be surprised, given the increased tribalism of society in general, but that’s a different post that won’t get … Continue reading Walls and Bridges
I had a project over the summer that required me to do a deep dive into various concepts around AI. Approximately 200 academic papers later, I came away with a laundry list of things I wanted to try. I am primarily interested in the capabilities of LLMs, but I am not particularly interested in the … Continue reading Experimenting with RAG Using ChatGPT and DuckDuckGo
At FedGeoDay in April, I attended a workshop conducted by my friend Steve Pousty on the use of vector databases. Steve is a great teacher and I learned a lot that day. I’ve been on a bit of a journey since. I’ve gotten some project work with AI and I find vector databases to be … Continue reading Image Similarity with PgVector
As I mentioned earlier this year, I spend a lot of time working in Python these days. More and more, my work seems to be about performing geospatial tasks with the minimal amount of geospatial dependencies possible. My most recent work has been generating contours from a set of sampled elevation points. I’ve done this … Continue reading Just Enough Geospatial
A couple of weeks ago, I had a need to return GeoJSON from PostGIS. This is something I've done many times, but I usually do the final formatting in the application/API layer with Javascript or Python. Basically, my workflow has been to SELECT, using the built-in ST_AsGeoJSON function to convert the geometry to GeoJSON. I … Continue reading Producing GeoJSON with SQL