A Dynamic Intelligent Decision Approach to Dependency Modeling of Project Tasks in Complex Engineering System Optimization

Table 3

The effect of task clustering analysis on scheduling schemes.

Problem subset	NOI	Average deviation of project delay time		Computation time (s)
		TD𝑐	TD𝑠	𝑇𝑐	𝑇𝑠
MP30	20	14.3	14.5	0.10	0.22
MP60	20	21.3	23.4	0.53	0.88
MP90	20	29.7	36.9	2.14	3.55
MP120	20	40.2	53.4	3.21	5.71
MP150	20	58.5	81.3	4.35	8.77
MP180	20	82.6	114.8	5.94	12.45
MP210	20	108.7	152.6	7.12	19.88

TD_𝑐: average deviation of project delay time through task clustering; TD_𝑠: average deviation of project delay time without task clustering operation; 𝑇_𝑐: computation time through task clustering; 𝑇_𝑠: computation time without task clustering operation.