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Comment by piqufoh | Hacker News Reader

I thought this part was interesting; > It then skipped the face recognition section which is what it does with under-12s

I'm aware that the passport photo conditions for young children are more relaxed (under 1 don't need their eyes open, under 6 don't need a 'neutral' expression) but I didn't expec that they would just skip the whole under-12s photo part.

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Face recognition has difficulty with under 12s because they’re still developing so quickly, given only a single reference photo from five years ago the accuracy of facial recognition is going to be terrible.

This is a tangential question, but I'm curious how well it tends to do with adults who undergo things like weight gain/loss, emergence or clearing of acne, minor-to-moderate injuries -- the sorts of natural change that can happen quickly and make a significant difference, but rarely fool humans.

Hardly surprising, though, since in general practical (i.e. non-lab) conditions it has trouble with over 12's too. FP still pretty high without additional constraints (e.g. photos on your timeline)

I wonder if there's already ML that can predict what a face will look like if given a set of photos of a person from a range of ages...

I was under the impression that most airlines require you to be at least 12 to do "unaccompanied minor"; anyone younger than that should be with both parents or they warrant special checks at the border anyway (such as letters of permission from the parents).

Is this new? Because I've seen children under 12 traveling as unaccompanied minors.

It's incorrect, not new

I think it's a mismatch in terminology. My brother sent his three kids to us for a holiday. The 11 year old had to be "accompanied" by a stewardess. The 13 and 16 year olds were able to travel "unaccompanied", as in not under the supervision of the airline.

The US says children must be 5 to travel "unaccompanied" (i.e. supervised by airport staff to the plane etc). From around 12-14 they can go alone, depending on the airline.

I don't think there's a European policy, and European airlines seem mixed in whether they allow unaccompanied children: https://www.opodo.co.uk/blog/which-airlines-allow-unaccompan...

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