Parameterized Local Reduction of Decision Systems

Table 2

The original decision table of patients’ symptoms.

𝑈	𝐴
	Body Temperature	Dry cough	Headache	Influenza	conf([𝑥𝑖]𝐴→𝐷𝑙)
	𝑎	𝑏	𝑐	𝑑
1	1	1	1	1	1
2	1	1	0	1	1
3	2	1	0	0	1
4	2	0	1	1	2/3
5	2	0	1	1	2/3
6	2	0	1	0	1/3
7	2	1	1	1	1
8	3	0	1	1	1/2
9	3	0	1	0	1/2
10	3	1	1	0	1

Note: in the table, body temperature 𝑎: 1 means high, 2 means slightly higher, and 3 means normal; for dry cough 𝑏, headache 𝑐, influenza 𝑑: 1 means yes and 0 means no.