Table 1 Confidence interval (at the 95%) level of the clustering solutions on the Sherf dataset

μ=1.1

0.4777

0.0015

0.8553

0.0007

μ=1.2

0.5073

0.0014

0.8595

0.0010

μ=1.3

0.5200

0.0015

0.8522

0.0009

μ=1.4

0.5265

0.0012

0.8497

0.0006

Consensus p-Median (d-g)

μ=1.5

0.5373

0.0008

0.8401

0.0005

μ=1.6

0.5401

0.0013

0.8357

0.0010

μ=1.7

0.5449

0.0008

0.8349

0.0006

μ=1.8

0.5464

0.0011

0.8334

0.0007

μ=1.1

0.5054

0.0010

0.8613

0.0008

μ=1.2

0.4586

0.0009

0.8604

0.0006

Consensus p-Median (g-d)

μ=1.3

0.4232

0.0016

0.8566

0.0014

μ=1.4

0.3735

0.0012

0.8366

0.0008

μ=1.5

0.3689

0.0011

0.8363

0.0007

α=0.0

0.5450

0.0037

0.8200

0.0035

α=0.1

0.5300

0.0031

0.8213

0.0030

α=0.2

0.5110

0.0034

0.8217

0.0019

α=0.3

0.4960

0.0045

0.8265

0.0033

α=0.4

0.4800

0.0039

0.8289

0.0042

STVQ

α=0.5

0.4770

0.0058

0.8301

0.0028

α=0.6

0.4536

0.0051

0.8303

0.0031

α=0.7

0.4298

0.0031

0.8304

0.0039

α=0.8

0.4022

0.0029

0.8306

0.0033

α=0.9

0.3713

0.0046

0.8309

0.0027

α=1.0

0.3598

0.0028

0.8310

0.0029

p-Median

−

0.4596

0.0015

0.8366

0.0008

k-Means

−

0.4770

0.0058

0.8301

0.0028

Relational k-Means

−

0.4983

0.0023

0.8240

0.0012

Probabilistic D-Clustering

−

0.4122

0.0236

0.7916

0.0160