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

Table 2

The hybrid functions (𝐹₂₄−𝐹₃₁).

Function	𝐹ns	𝐹^′	𝑚ns	Range	Fitness optimum
𝐹24	NS-𝐹21	𝐹13	0.25	[−100,100]^𝐷	−450
𝐹25	NS-𝐹22	𝐹15	0.25	[−100,100]^𝐷	390
𝐹26	NS-𝐹23	𝐹16	0.25	[−5,5]^𝐷	−330
𝐹27	NS-𝐹22	NS-𝐹20	0.25	[−10,10]^𝐷	0
𝐹28	NS-𝐹21	𝐹13	0.5	[−100,100]^𝐷	−450
𝐹29	NS-𝐹21	𝐹15	0.75	[−100,100]^𝐷	390
𝐹30	NS-𝐹21	𝐹16	0.75	[−5,5]^𝐷	−330
𝐹31	NS-𝐹22	NS-𝐹20	0.75	[−10,10]^𝐷	0