Grey Target Decision Method for a Variable Target Centre Based on the Decision Maker’s Preferences

Table 1

Safety data from coal mines.

𝑆𝑖	𝐴1	𝐴2	𝐴3	𝐴4	𝐴5	𝐴6	𝐴7	𝐴8
𝑆1	21	6	220	12	92	1.8	0.18	381
𝑆2	16	3.7	200	6	90	1.4	0.712	564
𝑆3	26	9.2	180	10	88	2.7	1.34	1051.6
𝑆4	10	4	260	8	94	1.2	0	442.5
𝑆5	30	8.2	350	10	96	3.6	0.641	788
𝑆6	19	5	130	12	100	2.4	0	300
𝑆7	17	9.6	400	6	86	1.3	1.23	964.7
𝑆8	40	14	600	6	95	2.1	1.12	885.6
𝑆9	12	12.8	120	10	91	1.5	0.872	839.3
𝑆10	14	5.8	155	12	89	1.7	0.426	617.2