Optimization for the Redundancy Allocation Problem of Reliability Using an Improved Particle Swarm Optimization Algorithm

Table 4

IPSO performances.

	Best	Worst	Median	SD (10^−10)
Series system	0.99995469	0.99986601	0.99990384	6.430
Series-parallel system	0.99312499	0.99303183	0.99308784	9.537
Bridge system	0.98935571	0.98926162	0.98930717	8.268