What is the False Omission Rate?

Given a negative prediction, the False Omission Rate (FDR) is the performance metric that tells you the probability that the true value is positive.

• It is closely related to the False Discovery Rate, which is completely analogous.
• The complement of the False Omission Rate is the Negative Predictive Value. Consequently, they add up to 1.
• The False Omission Rate answers the question: “If the prediction is negative, what share of my prediction is truly positive?”
• The False Omission Rate is calculated as follows: