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  • 1.  Log-Likelihood Distance

    Posted Wed January 22, 2025 01:41 PM
      |   view attached

    Hi, 

    I would like to calculate the log-likelihood distance for my cluster result but I encounter some problem with the formula written in the Two Step Cluster document explaining the mathematical formula in Section 5.4.1 for this distance measure. 

    1. As the distance for cluster i and cluster can be calculated by dist(i,j) = ξ(i) + ξ(i) - ξ(i,j), then does the distance to itself can be calculated by this formula which return non-zero value and it makes me feel unsecure with that result. Can I convert those diagonal element in pairwise log-likelihood distance matrix for all my cluster into zero in that case?
    2. There was 2 formulas in that document which are slightly different in calculating the log-likelihood distance. Which one is more correct to implement in this case? The Formula was stated in page 2 and page 11.


    Thanks and looking forward on your reply.



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    Wen Kai Yeam
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    Attachment(s)

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    Two Step Cluster.pdf   13.35 MB 1 version