Hello @Stormdamage -
I wasn’t familiar with GSP myself, so I had to do a bit of digging around. I found this page (https://www.philippe-fournier-viger.com/spmf/GSP.php) which explains the input and output formats in detail. I made a sample workflow using the small dataset on the page, which is attached below.
This forum thread was helpful as a reference too - Problems with input data format for GeneralizedSequentialPatterns Weka node.
GSP_Weka_Example.knwf (11.6 KB)
GSP.txt (136 Bytes)
Hope this helps!