Table 10 The performance for DBSCAN algorithm for the first situation used the text files with Preprocessing 1.

From: Open source Arabic research paper dataset for natural language processing

Eps value

Silhouette coefficient (euclidean)

Silhouette coefficient (cosine)

ARI

Davies–Bouldin Index

eps = 0.3

−0.278

0.032

−0.00007

5.476

eps = 0.5

−0.278

0.032

−0.00007

5.476

eps = 0.7

0.00006

−0.002

0.000006

1.545

eps = 0.9

−0.060

−0.110

0.002

2.243

eps = 1

0.001

0.0003

0.011

13.591