Computers look at faces as points on a template, different from how humans look at them. Facial recognition works best as a combination of human and machine intelligence, so you’d then look at those options you’re offered and at the corresponding confidence ratings — you’d see a number next to each result offered to you and you’d also notice that the number reduces as you go down the list. If you have a name also though, that makes it easier to almost immediately see if there’s a match to your unsub or Unknown Subject.
Typically though, the higher the positive rating, the more likely there’s a very good match. A +10 rating is a high probability of a match. A +4—+10 rating is still a good probability. A 0—+4 rating may be only somewhat likely. Do remember that your subject might not be in the database at all, if he or she doesn’t have a record, or doesn’t have a record that is as yet in our system.
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