A Methodology for Classifying Search Operators as Intensification or Diversification Heuristics

Table 1

Ranking of the course timetabling heuristics.

Heuristic	Friedman	Aligned Friedman	Quade
distance
	3.18	14.76	1.77
	1.83	12.34	2.30
	2.14	25.76	2.77
	5.9	42.43	3.60
	7.95	51.9	4.2
distance
	2.15	11.38	1.47
	1.25	12.724	2.17
	3.37	28.12	2.47
	6.31	47.21	3.12
	7.47	41.6	4.45
distance
	1.56	11.76	1.12
	2.95	15.33	1.77
	3.66	27.92	2.14
	6.72	36.42	2.77
	8.24	46.9	4.10