• From: "bryan rasmussen" <rasmussen.bryan@g...>
• To: "Michael Kay" <mike@s...>
• Date: Mon, 22 Jan 2007 20:28:18 +0100

hmm, someone pointed out that I got Kleene backwards. He wasn't in the
camp of algorithms must always terminate to be considered true
algorithms. Wish i could remember who it was, at any rate the other
point stands.

That said I do like formula checking as a term.

Cheers,
Bryan Rasmussen

On 1/22/07, bryan rasmussen <rasmussen.bryan@g...> wrote:
> There are a good number of algorithms that do not require
> computational completeness to be run. In fact I guess if you take
> Kleene''s definition it may be most of them.
>
> At any rate, as I was trying to convey and probably did a poor job at.
> If you know the exact limitations of a computation there can maybe be
> a non-turing language that can run it, the writing of the program can
> be a pain, this is why you can use a language with iterative processes
> to write the program in the language without iteration.
>
> this perhaps feeds back into all the principle of least power stuff
> people have been discussing.
>
> Cheers,
> Bryan Rasmussen
>
> On 1/22/07, Michael Kay <mike@s...> wrote:
> > > Algorithmic Checking: the validity of data in an XML instance
> > > document is determined not by mere examination or comparison
> > > of the data, but requires performing an algorithm on the data.
> >
> > I'm not quite sure "algorithm" is an appropriate term, given that XPath is
> > not computationally complete: but I can't immediately think of anything
> > better.
> >
> > Michael Kay
> > http://www.saxonica.com/
> >
> >
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>

• References:
  • RE: Schematron: Categories of Usage?
    • From: "Costello, Roger L." <costello@m...>
  • RE: Schematron: Categories of Usage?
    • From: "Michael Kay" <mike@s...>
  • Re: Schematron: Categories of Usage?
    • From: "bryan rasmussen" <rasmussen.bryan@g...>