in reply to Re: Distance among trees
in thread Distance among trees

Already followed those leads, even emailed the guy. Looks promising, but uses its own version of trees, creates "bipartition" of them, and does not contain a detailed explanation of the algorithm. I could try and glean it by following the code, but I'm not sure it's worth the while.

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Re: Re: Re: Distance among trees
by cacharbe (Curate) on Nov 19, 2001 at 21:41 UTC
    Looks like you're going to have to find a copy of "Lecture notes in mathematics" --Springer-Verlag, Germany(1979) to find out their proposed algorithm (or one of Foulds' other books, and he seems to have a few), but I found a text description of it here, pg. 4, and a subsequent discussion on the "Deltahedron Method" here, which does give an algorithm, but doesn't necessarily describe it as Foulds'.

    Hope that helps,

    C-.

    Update: After reading the Caccetta/Kusumah text, theirs might be a more interesting algorithm to attempt implementing if you are going to start from scratch.

      Not exactly what I was looking for. That's _another_ Robinson-Foulds algorithm, not for tree distances. I am not sure I want RF algorithm; looks like it's used for taxonomic distances, but I'm looking for something similar to the insertion-and-deletion metric for strings, but applied to trees. Does that exist?
        Ask These Guys. If anyone knows, it's the people from the "Journal of Graph Algorithms and Applications".

        C-.

      Not exactly what I was looking for; looks like a tree construction method.