Table 6 Rank for predictive performance comparisons.

From: A software reliability model for open source big data systems based on Weibull–Weibull distribution

Model

DS1-1 (90%)

DS1-2 (90%)

DS1-3 (90%)

DS2-1 (90%)

DS2-2 (90%)

DS2-3 (90%)

NCDk

Rank

NCDk

Rank

NCDk

Rank

NCDk

Rank

NCDk

Rank

NCDk

Rank

Goel-Okumoto (G-O) model

0.2216

7

0.094

7

0.2549

7

0.0734

7

0.1856

7

0.2012

7

Delayed S-shaped (DSS) model

0.0985

6

0.0555

4

0.0847

6

0.0671

6

0.1028

6

0.1014

6

Inflection S-shaped (ISS) model

0.0049

2

0.0341

2

0.0115

2

0.0576

3

0.0082

1

0.0039

2

Generalized G-O (GGO) model

0.0199

3

0.0665

5

0.0236

3

0.0551

2

0.09

5

0.0809

5

Zhang-Teng-Pham model

0.0789

5

0.0844

6

0.0775

5

0.0656

5

0.012

3

0.0119

3

Li model

0.0529

4

0.0436

3

0.037

4

0.0637

4

0.0558

4

0.0733

4

Proposed model

0.0047

1

0.0193

1

0.0048

1

0.0107

1

0.0088

2

0.0036

1