The Altair Community is migrating to a new platform to provide a better experience for you. In preparation for the migration, the Altair Community is on read-only mode from October 28 - November 6, 2024. Technical support via cases will continue to work as is. For any urgent requests from Students/Faculty members, please submit the form linked here
"Finding Item Sets with FPGrowth"
Maven
Hi,
I have some trouble using the FPGrowth Operator. On some of my Data it works perfectly fine. But I have one particular table where I have a big number of objects, and only a few itemsets. On that table FPGrowth isnt able to find any item sets at all which is weird because I activated the find_min_number_of_itemsets flag and 100 Itemsets to find.
My question is:
Is there a support value when the process to find_min_number_of_itemsets terminates (like 0.0001) or does it definetely discover something if theres any itemset more often then 1x?
I have some trouble using the FPGrowth Operator. On some of my Data it works perfectly fine. But I have one particular table where I have a big number of objects, and only a few itemsets. On that table FPGrowth isnt able to find any item sets at all which is weird because I activated the find_min_number_of_itemsets flag and 100 Itemsets to find.
My question is:
Is there a support value when the process to find_min_number_of_itemsets terminates (like 0.0001) or does it definetely discover something if theres any itemset more often then 1x?
Tagged:
0
Answers
the lower limit is set to 0.06 for some reason I don't know. So it stops even if it didn't find the desired number of item sets but the support reached this limit. I would suggest lowering the threshold manually, that should solve your problem.
Greetings,
Sebastian
Btw. by Treshhold do you mean the min_support value ?
yes, this I meant
Greetings,
Sebastian