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1) Using the following diagram, depict two curves that roughly indicate false positives and false
negatives, respectively. 2) Based on the two curves, suggest a perfect threshold for the IDS. 3)
Find the accuracy and the F1-Score for the perfect IDS.
begin{tabular}{|l|l|r|} hline Users & Intruder? & # Sent Packets  hline user1 & Intruder & 40
 hline user2 & Legit & 20  hline user3 & Legit & 30  hline user4 & Intruder & 60  hline
user5 & Intruder & 70  hline user6 & Legit & 10  hline user7 & Legit & 15  hline user8 &
Legit & 25  hline user9 & Legit & 18  hline end{tabular} begin{tabular}{|l|l|r|} hline
user10 & Intruder & 80  hline user11 & Legit & 29  hline user12 & Legit & 5  hline
user13 & Intruder & 65  hline user14 & Intruder & 48  hline user15 & Legit & 23  hline
user16 & Intruder & 84  hline user17 & Intruder & 70  hline user18 & Legit & 22  hline
user19 & Intruder & 52  hline user20 & Intruder & 41  hline end{tabular}

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1) Using the following diagram, depict two curves that roughly indica.pdf

  • 1. 1) Using the following diagram, depict two curves that roughly indicate false positives and false negatives, respectively. 2) Based on the two curves, suggest a perfect threshold for the IDS. 3) Find the accuracy and the F1-Score for the perfect IDS. begin{tabular}{|l|l|r|} hline Users & Intruder? & # Sent Packets hline user1 & Intruder & 40 hline user2 & Legit & 20 hline user3 & Legit & 30 hline user4 & Intruder & 60 hline user5 & Intruder & 70 hline user6 & Legit & 10 hline user7 & Legit & 15 hline user8 & Legit & 25 hline user9 & Legit & 18 hline end{tabular} begin{tabular}{|l|l|r|} hline user10 & Intruder & 80 hline user11 & Legit & 29 hline user12 & Legit & 5 hline user13 & Intruder & 65 hline user14 & Intruder & 48 hline user15 & Legit & 23 hline user16 & Intruder & 84 hline user17 & Intruder & 70 hline user18 & Legit & 22 hline user19 & Intruder & 52 hline user20 & Intruder & 41 hline end{tabular}