1 Subjects: “...convergent validity...”

2 Subjects: “...technical validation...”

3 Subjects: “...concurrent validity...”

4 Subjects: “...validity...”

5 Subjects: “...validation...”

6 Subjects: “...in-situ validation...”

7 Subjects: “...cross-validation...”

8 Subjects: “...k-fold validation...”

9 Subjects: “...numerical validation...”

10 Subjects: “...validation...”

11 Subjects: “...validation...”

12 Subjects: “...experimental validation...”

13 Subjects: “...validation...”

14 Subjects: “...cluster validity indices...”

15 Subjects: “...validity...”

16 Subjects: “...data validation and calibration...”

17 Subjects: “...data validation and calibration...”

18 Subjects: “...validity...”

19 Subjects: “...validity...”

20 Subjects: “...validity...”