An Improved Harmony Search Based on Teaching-Learning Strategy for Unconstrained Optimization Problems

Table 4

Parameter settings for the compared HS algorithms (HS, SGHS, NGHS, HSTL).

Algorithm	HMS	HMCR	PAR	BW	Others
HS	35	0.98	0.33	BW = (UB − LB)/1000
SGHS	35	HMCR𝑚 = 0.9	PARmax = 0.99,; PARmin = 0.01	BWmax = (UB − LB)/10; BWmin = 0.0005	LP = 100
NGHS	35	/	/	/	𝑃𝑚 = 0.01
HSTL	35	HMCRmax = 0.99	PARmax = 0.8	BWmax = (UB − LB)/20	TLPmax = 0.5, TLPmin = 0.15
		HMCRmin = 0.75	PARmin = 0.2	BWmin = (UB − LB)/3500	𝑃𝑚 = 0.15, 𝑘 = 5