Testing whether a point falls inside an area is one line of code. Deciding whether an object was actually there takes the whole sequence of observations, and a threshold you have to pick yourself.
Tag: Geospatial
2026
Two files, no shared identifier, and one question: which rows describe the same real-world thing? About 60 lines of Python, 2 arbitrary decisions, and one bug that quietly inflated the answer.
A public feed with no export button and a rate limit. Walking it politely with rotating exits, collapsing 37 spellings of city names into one, and turning the result into map layers by city and by area plus category counts over time.