Table 6 Ranking system in evaluation of risk and reliability analysis.

From: Optimal water supply reservoir operation by leveraging the meta-heuristic Harris Hawks algorithms and opposite based learning technique

MHAs/mean ranking for evaluation index

Reliability

Vulnerability

Shortage index

Resilience

Overall mean ranking

HHO

1

3

1

1

1.50

OBL-HHO

4

2

1

2

2.25

ABC

2

6

3

3

3.5

PSO

3

5

2

4

3.5

GA (real coded)

5

4

2

5

4

GA (binary)

6

1

4

6

4.25

  1. Significant values are in [bold].
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