Research Article

The Method for Identifying Employees’ Emotions in Adverse States Incorporating PSO-kNN Algorithm and Multiple Physiological Parameters

Table 2

Characteristics of the six physiological signals extracted.

Physiological signalsExtraction characteristics

Blood pressureSystolic, diastolic, and systolic-diastolic differential

Heart rate, respiratory rate, pulse rate, oxygen saturation, and skin impedanceMean, variance, first-order difference mean, maximum, minimum, maximum-minimum difference