X-Means output

User40550

Hi,

I used auto model to cluster a set and observed different number of clusters in the output from x-Means: 2 clusters in Summary, Heatmap, Centroid Chart, Centroid Table and Scatter Plot, but 4 clusters in Cluster Tree and Clustered data. From "Open Process" I break it down to the "X-Means"-Operator having two outputs, which show different cluster sets. This happens only, if k_min is 2.

IngoRM

Hi, may I ask which version of RapidMiner you are using? I haven't be able to reproduce this... Thanks for your help, Ingo

User40550

Hi Ingo,

I'm using RapidMiner Studio 9.3.001 rev 289b20.

Best regards,

Ingo B。

IngoRM

Ok, that's weird. I am on 9.4, but there was no big change between those versions which could have caused that... Is it possible that you share the data (also via PM) and / or a couple of screenshots showing the problem so that I can get to the ground of it? Many thanks!

IngoRM

Ok, I can confirm that there is a bug in x-Means so that the delivered data has more clusters than shown in the cluster model... I have filed a bug report for engineering and they will keep you updated on any progress on this.

Best,

Ingo

IngoRM

BTW, there is a workaround which is relatively easy. This workaround will be added to AM for the next release already.

Best,
Ingo