Nurse Scheduling Using Genetic Algorithm

Table 21

Results of genetic program calculated ten times at 400 rounds and 1500 rounds.

Target equation (obj.); number	Number of 20 nurses		Number of 24 nurses
	Calculating cycle; 400	Calculating cycle; 1500	Calculating cycle; 400	Calculating cycle; 1500
1	0.4701	0.4578	0.5049	0.4730
2	0.4361	0.4436	0.5406	0.4552
3	0.4566	0.4772	0.4789	0.4493
4	0.4812	0.4303	0.4590	0.5160
5	0.4496	0.4781	0.4942	0.4586
6	0.4920	0.4549	0.5383	0.4833
7	0.4779	0.3959	0.5228	0.4626
8	0.5428	0.4352	0.5133	0.4580
9	0.5472	0.4368	0.5497	0.4985
10	0.5231	0.4496	0.4551	0.4542
Mean	0.4876	0.4459	0.5056	0.4708
Standard deviation	0.038	0.024	0.033	0.021