0:00:00.000,0:00:03.000
And the answer would be this box over here
0:00:03.000,0:00:06.000
and this box over here, nothing else.
0:00:06.000,0:00:10.000
This guy has clearly 4 positive nearest neighbors,
0:00:10.000,0:00:14.000
so no matter what the 5th one is we stay positive.
0:00:14.000,0:00:16.000
Similarly, this guy over here,
0:00:16.000,0:00:18.000
when you draw a circle,
0:00:18.000,0:00:21.000
has probably these 4 guys as nearest neighbors,
0:00:21.000,0:00:24.000
perhaps this one as well, but it is a little further away.
0:00:24.000,0:00:27.000
With those 4 ones, it already has 3 pluses,
0:00:27.000,0:00:30.000
so whatever the 5th one is it can't overturn, it must be positive.
0:00:30.000,0:00:34.000
All of these are negative, even this one over here has just 2 pluses as neighbors
0:00:34.000,0:00:37.000
that are positive, and those guys over here are all negative.
0:00:37.000,0:00:41.000
Similarly, over here there are possibly 2 pluses
0:00:41.000,0:00:43.000
in the 5 nearest neighbors,
0:00:43.000,0:00:46.000
but these guys over here are all negative, and this guy is
0:00:46.000,9:59:59.000
surrounded by negative examples, so they will just be negative.