Single-Machine Scheduling with Fixed Periodic Preventive Maintenance to Minimise the Total Weighted Completion Times

Table 4

Results obtained by the heuristic algorithms.

	Initial solution	Final solution
WSPTBF	11131 (10526)	10691 (10266)
WSPTFF	9831	9831
WSPTFB + LIS	11131	9712

Remark: ( ) indicates that the value in the () proposed by Krim et al. [15] was somewhat questionable.