Sure, I think this is always a problem of hashing algorithms , picking the right hash is somewhere between hard and impossible. I total agree that the lack of evidence for many claims is appalling. It seems that many people are incapable or unwilling to perform even simplest of statistical analysis on their results.

But as I said in an earlier thread, I'd use a b-tree for this. You have very specific requirements so will have to implement custom code to do what you need. The code for general purpose b-trees can be quite complex, but you can eliminate everything you don't need. Of course, I don't know the exact details of the problem, so it's only a suggestion of something else to think about ;)

In reply to Re^7: RFC: Is there a solution to the flaw in my hash mechanism? (And are there any others?) by RichardK
in thread RFC: Is there a solution to the flaw in my hash mechanism? (And are there any others?) by BrowserUk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.