Improving Accuracy of Maps Using Anonymized GPS Traces(eng.uber.com)
eng.uber.com
Improving Accuracy of Maps Using Anonymized GPS Traces
https://eng.uber.com/mapping-accuracy-with-catchme/
12 comments
GPS traces aren't anonymous. If you go the same places often, your GPS trace is easily traced to you.
I don’t know about Uber, but Apple has spoken about collecting similar data and they anonymize it by slicing the route into a bunch of little pieces, throwing out the beginning and end of the route, and anonymously uploading the bits in the middle.
See “Probe data and privacy” section here: https://techcrunch.com/2018/06/29/apple-is-rebuilding-maps-f...
See “Probe data and privacy” section here: https://techcrunch.com/2018/06/29/apple-is-rebuilding-maps-f...
There's no indication that they are submitting the full trip trace.
If they only submit 500 meter long traces, it may he sufficiently anonymous.
I might have missed it, but how do they handle roadwork in European cities?
They have a lot of one way street and an entire path might be reversed for 2 weeks during utility work, then brought back to normal (like replacing cast iron gas pipes, or moving all the utilities before a light rail).
They have a lot of one way street and an entire path might be reversed for 2 weeks during utility work, then brought back to normal (like replacing cast iron gas pipes, or moving all the utilities before a light rail).
I guess the idea here is that Uber is developing technologies that would put them ahead of a new entrant/competitor. Time will tell.
What map data does Uber use?
I think they're making heavy use of Google Maps' API for the front end but what about the routing - do they roll their own or use Mapbox/Google?
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"driver-partner" yuck.
I thought the same thing. Also was interesting in Fig 2, where the map was wrong, it’s all driver-partner...yet in Fig 3, where it was an illegal turn, they conveniently drop the -partners.
See also: “student-athlete”
[1] http://s2geometry.io/