Collaborative Filtering Item Recommendation how can I create output "item_id" with title name

tonybunjong

hi 

I use Rapidminner for Collaborative Filtering Item Recommendation with user k-nn  and the result at "item_id" is number like this

so how can I create or replace number in 'item_id'  with title name like this. Or how can I show output with title name in new attribute.


I try to use set role operator and set additional roles : attribute 'title' with 'item identification' but output is the same. the "item_id" still be number. 

sorry for my English isn't good.
Thanks you for your help

ceaperez

Hi @tonybunjong,

if your item_id attribute  is a polynominal type,  you can use the Map Operator to replace the old values for new ones.

Best

Karn

Hi @ceaperez

Thank you for the solution.

Now I'm face the same problem but I can't use Map Operator because as I understand Map Operation is replace the value one by one but in my case I have a lot value to reply, Do we have the other way to resolve this problem.

From the screenshot below, I want to show Movie Name (title) instead of item_id.

ceaperez

Hi @Karn, 
Can you share your process?
Best, 

Cesar

Karn

Hi @ceaperez

I have share process and the data as an attachment.

Thanks you for your help

ceaperez

Hi @Karn,
I can't open the process file, can you share it again.
best, 

Cesar