Notes regarding project status and info

4 posts • Page 1 of 1

Postby csteddy » Mon Jun 27, 2016 8:45 am

I'm wondering why the accuracy of the location of the source of each SSID (usually a router) doesn't increase over time with greater sampling? I would have thought that my own SSID would be pinpointed to my house, rather than 30 or 40m away?



Postby bobzilla » Sun Jul 03, 2016 2:58 pm

It should, if there are observations from all sides. If all observations are on the north side of a device, it will always appear to be north of its actual location.
-bobzilla - just a little bit

Postby csteddy » Tue Jul 26, 2016 8:46 am

The Android app itself seems to be quite accurate, but not the website map. I'll do some investigation and give a few examples.
btw. How to you deal with outlier samples (eg. a router is moved, or a wacky GPS co-ord)?

Postby bobzilla » Sat Jul 30, 2016 8:23 pm

There's an iterative filtering that biases towards newer clusters.
-bobzilla - just a little bit

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