Given a known batch of mobile-obtained gps data with timestamps, what algorithms can be used to clean it?
I'm working on the backend for an iOS/Android app that collects locations every hour and syncs with the server every three hours. The mobile apps themselves are not under my control and so I can't ...
I have a list of POIs, some with a full description and some with only a few data entries, like the following: 6.9441000 50.9242000  (Ital) Casa di Biase [Köln] 6.9373600 50.9291800 ...
I know where to find 5-digit ZIP code boundaries. Do 9-digit ZIP code boundaries exist? If so, where might I find them?