Research Article

Objective and Subjective Evaluation of Online Error Correction during P300-Based Spelling

Figure 3

Confusion matrix for a general binary problem (a) and in the context of error correction (b), adapted from [14]. TP: true positive; FP: false positive; FN: false negative; TN: true negative.
578295.fig.003a
(a)
578295.fig.003b
(b)