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how to watch the update of the centroids of K-mean model

hello everyone, I'm new to Rapidminee I was wondering how to watch or get the value of the centroids of K-mean model in each run or iteration to determine which centroid (i.e., cluster) reached a fixpoint first, and in which run? at what point (i.e, run) none of the centroids get updated anymore (i.e., all reached a fixpoint)?

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MartinLiebig

Hi @MahmoudEmara ,

i am sorry, but i think this is not supported out of the box. you would need to run the algorithm with different iterations and export the centroids for each run.

Cheers,

Martin

lionelderkrikor

Hi @MahmoudEmara,

I propose a partial solution to your problem :

Put a KMeans + Extract Cluster Prototypes operators inside a Loop Parameters operator (loop over the max runs parameter) and then put a Merge operator at the end of the process to have the centroids according the run iteration in a unique results table .

In attached file, the process I propose.

Hope this helps,

Regards,

Lionel

PS : To use the Merge operator, you have to install the Operator Toolbox extension from the marketplace.

centroids_run_iteration.rmp