Definitionv1DF-538
False negative rate
the proportion of actual positive cases that a detection system fails to identify, measured as the complement of recall (FNR = 1 - Recall), where a false negative occurs when an agent fails to fire when it should, leaving the system exposed to undetected problems
Why This Is a Definition
This definition precisely establishes the semantic boundary of 'false negative rate' by identifying it as a proportion of actual positive cases that are missed, distinguishing it from false positive rate, and explaining the specific mechanism of agent failure. It includes the mathematical relationship to recall and the practical implications for cognitive systems.