Research Article

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

Table 3

The classification of three stress emotions by physiological signals and their features’ combination.

Physiological signalsNumber of original featuresOptimal subset feature numberAverage recognition rate (%)
Not to baseline kNNRemoval of baseline kNNNot to baseline kNNRemoval of baseline kNN

BP32141.6750.00
HR62250.0066.67
RR63358.3366.67
PR62358.3366.67
SpO261133.3333.33
SC62158.3366.67
ALL337766.6775.00