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- Xref: sparky comp.ai.neural-nets:3363 comp.ai:3286 comp.theory:1849
- Newsgroups: comp.ai.neural-nets,comp.ai,comp.theory
- Path: sparky!uunet!usc!sol.ctr.columbia.edu!destroyer!ubc-cs!fornax!jamie
- From: jamie@cs.sfu.ca (Jamie Andrews)
- Subject: Re: measuring complexity (was Re: Kolmogorov Complexity)
- Message-ID: <1992Aug31.211753.13335@cs.sfu.ca>
- Organization: CSS, Simon Fraser University, Burnaby, B.C., Canada
- References: <1992Aug27.010147.16422@fid.morgan.com> <1992Aug27.181810.7249@cs.sfu.ca> <1992Aug28.164941.2028@fid.morgan.com>
- Date: Mon, 31 Aug 1992 21:17:53 GMT
- Lines: 31
-
- In article <1992Aug28.164941.2028@fid.morgan.com> sethb@fid.morgan.com (Seth Breidbart) writes:
- >What do you mean by probability? If you mean, for any string S, with
- >probability > (1-delta) P is within epsilon of the shortest program
- >for S, then A will lead to a probabilistic solution to the busy beaver
- >problem.
-
- What do you mean by a "probabilistic solution"? It won't
- solve the busy beaver problem, it will just give an approximate
- solution. If we set epsilon and delta to 0, presumably the
- algorithm will no longer terminate.
-
- >If you say "for all k, assigning equal probabilities to all strings of
- >length bounded by k and 0 to all others", then you avoid the last
- >problem I raise, but once again the trivial program works almost
- >everywhere (and a finite correction to it works everywhere).
-
- That's why I suggested something which you seem to have
- skipped over completely, namely that we assign equal
- probabilities to all strings generated by programs of length k
- or less.
-
- I'm just throwing out ideas, really, trying to come up with
- a formulation of a problem that is interesting and non-trivial.
- You're welcome to your view that the problems I've stated so far
- are trivial, but that doesn't convince me that the whole area is
- trivial (though it may convince me to stop talking about it on
- the net :-)).
-
- --Jamie.
- jamie@cs.sfu.ca
- "Every \item command in item_list must have an optional argument." LaTeX pg.168
-