Yeah, 0.02% of 65 Million is 1.3 Million possible errors.
And that’s just based on the raw population, that accuracy rating could be based on raw number of scans instead. A quick search shows Sainsbury’s serves 16 million customers a week. That’s 320,000 errors every week if the error rate is just raw scans as opposed to unique scans.
Indeed, it’s still a ridiculous amount of errors though.
65,000,000 x (0.02%) = 13,000 possible errors
16,000,000 x (0.02%) = 3,200 errors every week
3,200 / 7 = 457 errors every day
457 potentially pissed off and put off customers every day, how long is that sustainable?
Nevermind all the privacy implications of private companies having large databases of people’s faces, their movements, purchases, and potential to sell or use that data for nefarious purposes, etc.
Yeah, 0.02% of 65 Million is 1.3 Million possible errors.
And that’s just based on the raw population, that accuracy rating could be based on raw number of scans instead. A quick search shows Sainsbury’s serves 16 million customers a week. That’s 320,000 errors every week if the error rate is just raw scans as opposed to unique scans.
Your math is off, by two decimal places.
Indeed, it’s still a ridiculous amount of errors though.
65,000,000 x (0.02%) = 13,000 possible errors
16,000,000 x (0.02%) = 3,200 errors every week
3,200 / 7 = 457 errors every day
457 potentially pissed off and put off customers every day, how long is that sustainable?
Nevermind all the privacy implications of private companies having large databases of people’s faces, their movements, purchases, and potential to sell or use that data for nefarious purposes, etc.