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Table 1 Truth table for a two-class classifier

From: Review of multidimensional data processing approaches for Raman and infrared spectroscopy

  Ground truth (desired output)
Ground truth – positive (Class 1) Ground truth – negative (Class 2)
Classifier Result Classifier result – Positive (Class 1) True Positive (TP) False Positive (FP)
(Statistical model Output) Type–I Error
Classifier result – Negative (Class 2) False Negative (FN) True Negative (TN)
Type–II Error