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Niantic uses Pokémon Go player data to build AI navigation system
(arstechnica.com)
This is a most excellent place for technology news and articles.
The issue is it's going to be trained only on places people go. My understanding is that most geolocating systems are more focused on the uncommon or less traveled locations. Maybe I'm wrong, but I guess they're probably tested it out before announcing it.
Maybe they will start/already have putting pokemon in locations that they need data for to make a more comprehensive map.