[Haskell-cafe] How would you hack it?
ajb at spamcop.net
ajb at spamcop.net
Thu Jun 5 20:40:43 EDT 2008
G'day.
Quoting Andrew Coppin <andrewcoppin at btinternet.com>:
> Right. So a "Markov chain" is actually a technical way of describing
> something that's intuitively pretty obvious? (E.g., PPM compression
> works by assuming that the input data is some sort of Markov chain with
> as-yet unknown transition probabilities.)
Yes. In fact, DMC compression (which has been proven to be the same thing
as PPM up to isomorphism) explicitly uses a Markov model.
If you're curious, I recently put some code for building dynamic Markov
models here. It's not pretty, but you might find it useful:
http://andrew.bromage.org/darcs/dynamicmarkov/
Cheers,
Andrew Bromage
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