4 ms·
What if someone lives in a really remote location so they're the only ones in the heat map cell?
by chpatrick 3y ago
What if someone lives in a really remote location so they're the only ones in the heat map cell?
- nighthawk454 3y agoI should think after defining a uniform distribution of points, you could cluster them as needed to form larger lower-resolution chunks according to population size. Binning everyone in that region to say the central most point. Which could then be adaptive as the populations change.
- xyzzy_plugh 3y agoThis is the correct answer. You need an aggregation threshold that restricts precision when population count is too low. In this case, the cell size needs to increase until there are at least N users.
- nick7376182 3y agoAssign everyone a random offset, that doesn't change, that is large enough to obscure the address with some reasonable radius but small enough to not drastically skew the heat map at a lower zoom level
- frankfrank13 3y agoAnother user here mentioned Uber's h3, which is actually what I used. You end up being able to anonymize over arbitrarily large geographic areas using something like a tile, rather than a point