Table 2.

The parameters characteristics and values of the HHO algorithm.

Parameter	Symbol	Value
Random number	$q_1$	[0, 1]
Next position of the Harris hawk	$H_t+1$	–
Random position of the hunter	$H_{\mathit{rand}}$	–
Current position of the hawk	$H_t$	–
Average position of all falcons	$H_{\mathit{mean}}$	–
Hunting position	$H_{\mathit{prey}}$	–
Number of iterations	t	50
Random numbers	$r_1..,r_4$	[0, 1]
Maximum number of iterations	T	55
Lowest bound	LB	–
Highest bound	UB	–
Escape energy	R	[− 2, 2]
Initial energy	$R_0$	[− 1, 1]
Prey force for random jumps	J	–