Evaluation (Exercise 4 exam 2021)

Re: Evaluation (Exercise 4 exam 2021)

par Jean-Cédric Chappelier,
Number of replies: 0
Why do you say it's computed with respect to the true labels? It's indeed computed w.r.t. the reference:
S_1 \simeq 1 - (N-20)\times p_f/N = 1 - p_f + p_f^2\simeq 1-p_f
S_2 = 1 - 20/N = 1 -p_f