eISSN 2093-744X
pISSN 1598-2645

Table 1

Number of surviving causal combinations for eight problems

Problem	Cases	Variables (p)	Two terms per variablesa
Problem	Cases	Variables (p)	Candidate causal combinations (2^p)	Surviving causal combinations (R_s)
Abalone [14]	4,177	7	128	55
Concrete compressive strength [14]	1,030	8	256	73
Concrete slump test [14]	103	9	512	71
Wave force [16]	317	3	8	8
Chemical process concentration reading [17]	194	3	8	8
Chemical process temperature readings [17]	223	3	8	6
Gas furnace [17]	293	6	64	25
Mackey-Glass chaotic time series [18]	1,000	4	16	8

^aThe two terms are low and high, and their fuzzy c-mean membership functions are the complements of one another.

International Journal of Fuzzy Logic and Intelligent Systems 2014;14:1~7 https://doi.org/10.5391/IJFIS.2014.14.1.1