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


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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
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
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Best Answer
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ceaperez Member Posts: 333
Unicorn
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.Best0