Comparison Analysis of Different Time-Scale Heart Rate Variability Signals for Mental Workload Assessment in Human-Robot Interaction

Figure 9

Classification accuracies of per-subject mental workload by different classifiers at different time scales: (a) support vector machine, (b) -nearest neighbors, (c) gentle boost, (d) linear discriminant analysis, (e) naïve Bayes, and (f) decision tree.

(a)

(b)

(c)

(d)

(e)

(f)