Precision or Recall when dealing with critical cases?

Question

I have to create an AI that classifies mutliple objects in order to accept them or not inside a machine. The problem is that some objects could be really harmful to the machine if they get accepted.

Should I focus on an high Precision or an high Recall, in order to not accept this kind of objects?

score 1 · Accepted Answer · answered Apr 13 '21 at 16:27

1

Let us say your target variable "1" represents "Harmful Object".

Precision answers the question - Of all objects predicted as Harmful - How many are really harmful ?

Recall answers the question - Of all the Harmful objects out there - How many were correctly identified ?

You want to increase on Recall in your case - since that reduces the overall risk to the machine.

answered Apr 13 '21 at 16:27

Jayaram Iyer

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Thank you very much, it's clear now – Clément Chrétien Apr 14 '21 at 08:36
Please accept it as the correct answer if you are satisfied with the response. – Jayaram Iyer Apr 14 '21 at 10:35

Precision or Recall when dealing with critical cases?

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