Table 2: Feature importance of the best performing decision tree.

Attribute

Feature Importance

Age

29.09%

Duration of employment

26.87%

Attendance history

9.80%

Weekly working hour difference

4.71%

Language: German

2.22%

Year

2.10%

Shift length

1.68%

Month: November

1.10%

Month: September

1.02%

Day of the week: Monday

1.01%