[Retracted] Attribute Reduction Algorithm on Concept Lattice and Application in Smart City Energy Consumption Analysis

Table 6

The running status of 5 well-running machines.

Machine	Operation hours	Operating efficiency	Failure score
1	32	78%	3
2	35	89%	2
3	34	85%	1
4	32	94%	0
5	31	79%	2