If the probability that a normal object is classified as an anomaly is 0.01 and the probability that an anomalous object is classified as anomalous is 0.99, then what is the false alarm rate and detection rate if 99% of the objects are normal? (Use the definitions given below.)


The detection rate is simply 99%.
The false alarm rate = 0.99m × 0.01/(0.99m × 0.01 + 0.01m × 0.99) = 0.50 =
50%.

Computer Science & Information Technology

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