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Table 2 Silhouette index values for clustering solutions produced by PAM with different values of K

From: Unsupervised gene selection using biological knowledge : application in sample clustering

Data set

K

Silho Eucli-PAM

Silho City-PAM

Silho Cosine-PAM

Yeast

5

0.3792

0.367

0.381

 

10

0.4531

0.452

0.442

 

20

0.4415

0.437

0.435

 

30

0.4075

0.411

0.426

 

40

0.40

0.421

0.423

 

50

0.397

0.432

0.419

Multiple tissues

5

0.354

0.361

0.359

 

10

0.383

0.372

0.368

 

20

0.394

0.379

0.382

 

30

0.406

0.394

0.392

 

40

0.4299

0.419

0.404

 

50

0.429

0.402

0.418

 

60

0.415

0.398

0.416

 

70

0.414

0.391

0.409

  1. The data in boldface represents optimal value of ‘K’ i.e. dimension of gene space corresponding to optimal Silhouette index for all of three distance based PAM versions