What is random clutering?

Hi Joris,

Random Clustering simply iterates over all examples and assigns a random cluster to it. Must be pure chance, if it performs better than k-Means, or your validation process is wrong.

Best, Marius

Yes, I was afraid of that )

As performance measurement I take the Item Distribution measurement. The other ones don't seem to work with clustering output, or only with one or two. I assument the measurement works ok, so I'm a bit puzzled.

Can you please post a simple process which depicts your problem? See the link in my signature on how to do that.