Measuring Cluster Validity by purity measures?

Fred12
Fred12 New Altair Community Member
edited November 5 in Community Q&A

hi,

I have a problem with 3 classes, and  wan to d k-means clustering, is there some way to assess cluster performance by some cluster purity criteria like Homogeneity, Entropy, or information gain?

is there some operator that does that?

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Best Answer

  • Telcontar120
    Telcontar120 New Altair Community Member
    Answer ✓

    Hi @Fred12, this seems quite similar to the question you posted on Thurs.  Is it different in some way?  I posted a reply there but I didn't see a response, you might want to check it out: Thursday's post reply

     

    In any event, the operator "Item Distribution Performance" lets you look at the overall Gini coefficient based on your label across your clusters, which seems similar to what you are asking to measure. 

Answers

  • Telcontar120
    Telcontar120 New Altair Community Member
    Answer ✓

    Hi @Fred12, this seems quite similar to the question you posted on Thurs.  Is it different in some way?  I posted a reply there but I didn't see a response, you might want to check it out: Thursday's post reply

     

    In any event, the operator "Item Distribution Performance" lets you look at the overall Gini coefficient based on your label across your clusters, which seems similar to what you are asking to measure. 

  • Fred12
    Fred12 New Altair Community Member

    yes sorry, I didnt find my post since then ;)

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