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 signals | Extraction characteristics |
| Blood pressure | Systolic, diastolic, and systolic-diastolic differential |
| Heart rate, respiratory rate, pulse rate, oxygen saturation, and skin impedance | Mean, variance, first-order difference mean, maximum, minimum, maximum-minimum difference |
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