I've been reading through a paper (N.E.A.T) and came across the sentence :
the value had a 90% chance of being uniformly perturbed
Now I don't know what it means. I have started a web search and all I found was singular perturbation, nothing about uniform. Then I started to read through the topic and it seems very complicated.
My question is if someone can explain me what it is in relatively simple terms and a formula would also be helpful if possible (or existing). Alternatively a learning resource would also be nice.
This really depends on which context you are talking about. For simple calculas perturb meaning small change in variable x or y and sensitivity is small change in x how much y change it is just as derivative so we can thought it has we increase x uniformly till x+dx. In numerical linear algebra Ax=y we change y slightly to see effect that how solution set x change.