Frequency Response Function-Based Finite Element Model Updating Using Extreme Learning Machine Model

Algorithm 1

The Lévy flight based whale optimization algorithm (LWOA).

	Initialize relevant parameters
	Generate a population , randomly. Calculate the fitness of each whale and get the best solution
	while ()
	for each search agent
	Update , , , and
	if ()
	if ()
	Update the position of the current search agent by equation (12)
	else if ()
	Select a random search agent
	Update the position of the current search agent by equation (15)
	end if
	else if ()
	Update the position of the current search agent by equation (14)
	end if
	end for
	for each search agent
	Update the position of the current search agent using Lévy flight by equation (17)
	end for
	Check if any search agent goes beyond the search and amend it
	Calculate the fitness of each whale
	Update if there is a better solution
	end while
	Return