I’m trying to recreate and better my KNIME skills by recreating this example workflow for product recommendations:
I’m using this sample data set to learn from:
Attached is also the workflow I created but I have imported the data, grouped by InvoiceNo and aggregated a list of all products featured in each transactions (each InvoiceNo) and attached it to the Association Rule Learner (Borgelt) but when I try to execute the learner node, it gives me an error message saying that the node generated a blank data table. Why is this and what do I need to change in the previous nodes?
Product_Recommendations_Test.knar.knwf (11.1 KB)
Thanks for your help with this!