Solving the Problem of Time, Cost, and Quality Trade-Off in Project Scheduling under Fuzzy Conditions Using Meta-Heuristic Algorithms

Table 2

Candidate factors and levels in the group particle optimization algorithm (PSO).

Factors	PSO symbol	PSO levels
C2	A	A(1): 0.6
		A(2): 0.75
		A(3): 0.9
Iteration	B	B(1): n
		B(2): 2 ∗ n
		B(3): 3 ∗ n
W	C	C(1): 0.85
		C(2): 1.2
		C(3): 1.4
Population size	D	D(1): 0.5 ∗ n
		D(2): n
		D(3): 2 ∗ n
C1	E	E(1): 0,9
		E(2): 1
		E(3): 1.1
		E(4): 1.2
		E(5): 1.4