Re:Defense of Amazon's Face Recognition Tool Undermined by O...
by Ntrails on Monday February 04, 2019 @11:58AM
(#19077948)
Seeing a single result just above threshold leads a person to believe it's a match. Seeing the 200 people within a few points of the threshold might lead someone to think it was actually completely indeterminate with a large number of potential suspects not far from each other.
(I could be missing something here)
You're assuming that there is a wide distribution of confidence levels in every search. Its very possible with grainy footage that no result is above a reasonable threshold, but the results will still show an ordered list.
Without _some_ threshold or training in what these kind of scores mean, its easy for a user to think "well they were the best match" and take a negative action like bringing them in for questioning or introducing the match as evidence, even if its only 10% +/- 5%.