@VanessaSia not sure if the task is about the specific rule learning or if you want to consider other methods that are included in the KNIME Weka integration for example:
If you use the algorithms they all can be configured and depending on your data the settings might differ.
Also I do not want to add more complexity. If this is an academic assignment typically it does make sense to stick to the task.
And rule learning can take a lot of ressources, indeed.