k

2

3

4

5

6

7

8

9

10

Precision

0.9845

0.9579

0.9385

0.9352

0.8909

0.9013

0.9148

0.8913

0.8859

Recall

0.7085

0.6384

0.6453

0.6056

0.5916

0.6543

0.6822

0.6688

0.6805

Overall F-measure

0.7988

0.7297

0.7399

0.6986

0.6822

0.7329

0.7562

0.7343

0.7472

NMI

0.4617

0.5051

0.6221

0.6866

0.7148

0.7925

0.8936

0.8848

0.9006