I need an aid for a problem of clustering and data mining

[mlauber71]

There is a bunch of nodes that can help you with Text analysis

KNIME Textprocessing

Also there is an example for a sentiment analysis

Sentiment Analysis | KNIME

Then of course you can check out the KNIME courses about
“Text Mining Course with KNIME Analytics Platform”

KNIME Course Information | KNIME

And also you can check out the “Web, Text and Network Analysis” section of the Learning Hub:

Learning Hub | KNIME