A Novel Stress State Assessment Method for College Students Based on EEG

Algorithm 3

IELM algorithm.

	Input: Training set X, test set X’
	Output: Classification evaluation index value
	Step 1: Initialize the weight W1 using equations (9)-(10)
	Step 2: For i = 1 : M
	Step 3: Train base classifier on Wi
	Step 4: Calculate the overall error rate for all markers using equation (11)
	Step 5: When the weighted error is greater than 0.5, update all sample weights using equation (13), otherwise the loop stops
	Step 6: Calculate the weights of the base classifier using equation (14)
	Step 7: Calculate the class label of the test sample
	Step 8: Calculate the evaluation index value according to the evaluation index calculation formula