A Data-Driven Approach Based on Historical Hazard Records for Supporting Risk Analysis in Complex Workplaces

Table 6

The main association rules in and .

NO.	Main objects	Main deviations in and
1	Warming apparatus + 2 objects	Missing (10, 0.67, ); eroded (9, 0.60, ); missing (8, 0.53, ); damaged (6, 0.40, )
2	Safety cages + 9 objects	Missing (7, 1.00, ); missing (10, 1.00, ); more (7, 0.53, ); damaged (2, 0.25, )
3	Rain sewage valve + 6 objects	Missing (6, 1.00, ); inefficient (2, 1.00, ); inefficient (3, 0.75, )
4	Stop valve + 5 objects	Missing (6, 0.86, ); inefficient (2, 0.67, ); substandard (2, 0.50, W1)
5	Discharge outlet + 6 objects	Missing (6, 0.75, ); more (6, 0.67, W1); inefficient (4, 0.57, W1)
6	Environmental monitor + 7 objects	Missing (6, 0.86, ); missing (6, 0.50, ); more (2, 0.50, )
7	Control index + 5 objects	More (5, 0.63, ); inefficient (2, 1.00, ); discrepant (2, 0.29, )
8	Drainage + 3 objects	Missing (5, 0.63, ); polluted (2, 0.50, ); inefficient (2, 0.50, ); leaked (2, 0.50, )
9	Diversion facilities + 5 objects	Missing (5, 0.71, )
10	Sulfur dioxide + 7 objects	More (4, 0.67, ); substandard (2, 0.67, ); inefficient (2, 0.50, ); inefficient (2, 0.67, ); more (2, 0.67, )
11	Monitoring data +6 objects	Inefficient (4, 0.57, ); more (2, 1.00, ); more (2, 0.67, )
12	Steady rate + 10 objects	More (4, 0.80, W1); missing (7, 0.70, ); more (6, 1.00, )
13	Installation height + 5 objects	Less (3, 0.75, W1); substandard (2, 1.00, ); less (2, 0.33, )
14	Interlock circuit + 5 objects	Substandard (2, 1.00, ); discrepant (2, 0.67, W1); substandard (2, 1.00, )
15	Boiler + 5 objects	Leaked (2, 1.00, ); more (2, 1.00, ); less (2, 0.67, )
16	Lead sealing + 8 objects	Closed (2, 0.50, )
17	Oil trap + 6 objects	More (2, 1.00, ); missing (8, 1.00, ); more (2, 1.00, )
18	Chemical oxygen demand +7 objects	More (2, 1.00, ); more (5, 0.83, ); broken-down (2, 0.50, )
19	Threading apparatus + 4 objects	Damaged (2, 1.00, ); more (3, 1.00, ); damaged (2, 1.00, )
20	Equipotential connection + 8 objects	Missing (18, 0.75, ); unmatched (6, 0.55, ); eroded (6, 0.55, )
21	Lead sealing + 8 objects	Missing (9, 0.90, ); damaged (7, 0.70, )
22	Sewage valve + 6 objects	Missing (8, 1.00, ); damaged (2, 0.50, ); more (2, 0.33, )
23	Equipment enclosure + 8 objects	Missing (8, 0.73, ); unmatched (3, 1.00, ); damaged (3, 1.00, )
24	Diversion facilities + 5 objects	Missing (7, 0.78, ); leaked (2, 0.50, ); less (2, 0.50, )
25	Flame detector + 4 objects	Missing (6, 1.00, ); unmatched (2, 1.00, ); less (2, 1.00, ); more (2, 1.00, ); substandard (2, 1.00, )
26	Fire pump + 4 objects	Missing (6, 0.67, ); inefficient (3, 0.43, ); broken-down (2, 1.00, )
27	Installation site + 3 objects	Leaked (2, 1.00, ); less (2, 1.00, ); substandard (2, 1.00, )
28	Cement + 3 objects	Eroded (2, 1.00, ); damaged (2, 1.00, ); inefficient (2, 0.67, )