Bacterial Colony Optimization

Table 1

Globe optimum, search ranges, and initialization ranges of test functions.

Function	Function name	𝑥^∗	Minimum value	Range of search	Initialization range
𝑓1	Sphere	[0,0,…,0]	0	[−100,100]^𝑛	[−100,50]^𝑛
𝑓2	Rosenbrock	[0,0,…,0]	0	[−100,100]^𝑛	[−50,50]^𝑛
𝑓3	Sum of different powers	[0,0,…,0]	0	[−1,1]^𝑛	[−1,1]^𝑛
𝑓4	Sin	[0,0,…,0]	0	[−50,50]^𝑛	[−50,50]^𝑛
𝑓5	Rastrigin	[0,0,…,0]	0	[−5.12,5.12]^𝑛	[−1,1]^𝑛
𝑓6	Griewank	[0,0,…,0]	0	[−600,600]^𝑛	[−100,300]^𝑛
𝑓7	Ackley	[0,0,…,0]	0	[−32,32]^𝑛	[−5,5]^𝑛
𝑓8	Weierstrass	[0,0,…,0]	0	[−0.5,0.5]^𝑛	[−0.5,0.25]^𝑛
𝑓9	Ro-Rastrigin	[0,0,…,0]	0	[−5.12,5.12]^𝑛	[−1,1]^𝑛
𝑓10	Ro-Griewank	[0,0,…,0]	0	[−600,600]^𝑛	[−100,300]^𝑛
𝑓11	Ro-Ackley	[0,0,…,0]	0	[−32,32]^𝑛	[−5,5]^𝑛
𝑓12	Ro-Weierstrass	[0,0,…,0]	0	[−0.5,0.5]^𝑛	[−0.5,0.25]^𝑛