Enhancing the Efficiency of a Decision Support System through the Clustering of Complex Rule-Based Knowledge Bases and Modification of the Inference Algorithm

Table 3

The quality of rules clusters vs. representative generation methods.

Representative generation Method	BCS		O		ARL			BRL
	Mean	SD	Mean	SD	Mean	SD	Min–Max	Mean	SD	Min–Max
Threshold	76.68	59.18	3.93	5.66	4.05	3.08	0.0–9.75	5.85	3.63	0.0–14.0
LowerApp	78.46	60.45	3.70	5.43	1.39	0.60	0.6–3.75	2.71	1.90	1.0–9.0
UpperApp	80.94	61.34	3.97	5.98	25.94	37.60	2.2–279.0	86.79	94.28	4.0–279.0
Weighted	77.72	59.21	3.85	5.57	4.13	3.59	0.0–14.5	6.83	6.83	0.0–19.0