Table 6 Expression coefficient of recommended hyperparameter M optimization value - continuous variable data sets.

From: Research on parameter selection and optimization of C4.5 algorithm based on algorithm applicability knowledge base

M

\(\:{\varvec{c}}_{0}\)

\(\:{\varvec{c}}_{1}\)

\(\:{\varvec{c}}_{2}\)

\(\:{\varvec{c}}_{3}\)

\(\:{\varvec{c}}_{4}\)

\(\:{\varvec{c}}_{5}\)

2

-10.8103

0.8999

-6.3635

-3.6678

5.1484

31.3160

5

36.2279

0.7355

-2.3463

-2.7360

4.7303

-46.3849

15

-4.0840

0.8999

-4.3249

-16.5800

-19.3937

-0.0945

20

-24.5964

0.8206

-20.7592

-3.0780

5.1976

3.1834

30

8.1493

0.8799

-3.1473

-3.6127

5.1336

-46.4028