1 Subjects: “...cluster analysis...”

2 Subjects: “...hierarchical clustering...”

3 Subjects: “...clustering evaluation...”

4 Subjects: “...cluster control strategy...”

5 Subjects: “...cluster analysis...”

6 Subjects: “...clustering...”

7 Subjects: “...cluster...”

8 Subjects: “...hierarchical cluster analysis (HCA)...”

9 Subjects: “...hierarchical clustering...”

10 Subjects: “...twostep cluster analysis...”

11 Subjects: “...clustering...”

12 Subjects: “...self-organizing maps clustering...”

13 Subjects: “...fuzzy clustering analysis...”

14 Subjects: “...k-means clustering...”

15 Subjects: “...Gaussian density peak clustering...”

16 Subjects: “...K-Means clustering...”

17 Subjects: “...clustering AE signal...”

18 Subjects: “...clustering AE signal...”