Davies boulden's results and avg. within centroid distance's results

2015228094
2015228094 New Altair Community Member
edited November 2024 in Community Q&A

Hello , I want to ask about davies boulden's  results and  avg. within centroid distance's results,  I did a cluster with k-mean  with loop of k start from 2 to 25, so I use davies boulden   and  avg. within centroid distance  to evaluate  results, so the final result shows that davies boulden is infinity and avg. within centroid distance is zero  when k = 4 and above , so I what I need to do ? remove results from k and above or there is an error and I can fix it?

Answers

  • lionelderkrikor
    lionelderkrikor New Altair Community Member

    Hi @2015228094,

     

    I don't know how to interpret these values of Davies Bouldin Index and avg. within centroid distance.

    However, if you are searching an optimum value of k for your clustering task, you can explore an other track : 

    Use the X-Means operator which determine the optimum number of clusters k based on the Bayesian Information Criterion (BIC).

     

    I hope it helps,

     

    Regards, 

     

    Lionel