Short version: In QGIS, use the Create grid layer function in the MMQGIS plugin to create the hexbins. Then import this layer into PostGIS and use the ST_Contains function to join your points spatially to the hexbins. Voilà.
Google Summer of Code 2015 is coming to an end today. I’ve been mentoring Deepak over the summer, who built an awesome prototype to bring the enviroCar data into the LOD cloud.
If you were always wondering how machine learning works, but didn’t dare to ask.
This is a pretty cool project by WNYC: They are trying to figure out what the longest ride on the NYC subway is that you can get with a single swipe. You can transfer as often as you want and visit stations repeatedly, but every line segment may only be visited once. They have built a small website that is trying to crack that problem brute force in the browser:
A bit like a traveling salesman who really doesn’t want to go home.
We have extended the deadline for our 5th Linked Science workshop until next Monday, July 13.
This protection is important for everyone. It’s easy to see how encryption protects journalists, human rights defenders, and political activists in authoritarian countries. But encryption protects the rest of us as well. It protects our data from criminals. It protects it from competitors, neighbors, and family members. It protects it from malicious attackers, and it protects it from accidents.
I’ll be mentoring Deepak Nair over the summer through Google’s Summer of Code program. He will finally add a full-fledged Linked Open Data layer to enviroCar, including a SPARQL endpoint and automatic interlinking with external data sources.