Some corrections:
3. Higher amount of information is related to higher value of
--difference (this is my understanding of "a difference that makes
difference").
--complexity (Gregory J. Chaitin's examples. Need more comments)
--data after reduction of uncertainty (OK with me)
--data after processing or refining (Marcin J. Schroeder citations)
(Pedro, why I cannot receive FIS mailing list messages these days?)
Shu-Kun Lin wrote:
> Just finished reading the messages of this thread, particularly
> the messages from sbr.lpf@cbs.dk on 4 September 2005,
> from collierj@ukzn.ac.za on 2 September 2005, and
> from dbar_x@cybermesa.com on 2 September 2005. Several
> known definitions were discussed in these messages.
>
> To narrow our definition, we may accept that
>
> 1. "Information (I) is a physical representation" (Rolf
Landauer, cited
> by Michael Devereux.
>
> 2. Information has a quantitative measure. It has a unit in bit.
> Of course it is measurable.
>
> 3. Higher amount of information is related to higher value of
> --difference (this is my understanding of "a difference that makes
> difference".
> --reduction of uncertainty (OK with me)
> --complexity (Gregory J. Chaitin's examples. Need more comments)
> --data after processing or refining (Marcin J. Schroeder citations)
>
> These all conform with my definition that "information is the
> compressed data". Data processing or refining should be taken
> as data compression.
>
> The best possible data compression has the similar meaning
> as Gregory J. Chaitin's "minimal program"
> (http://www.cs.auckland.ac.nz/CDMTCS/chaitin/sciamer.html).
>
> What is data L (or raw data) measured in bits? It is a
> property of a structure. What is a structure? A formatted
> harddisk in use has certain structure and has a raw data of L bits.
> Many examples of mechanics or thermodynamics can be given.
>
> The raw data L is conserved for many systems and "three laws"
> similar to the laws expressed as energy and entropy in
> thermodynamics can be given.
>
> Best regards,
> Shu-Kun
_______________________________________________
fis mailing list
fis@listas.unizar.es
http://webmail.unizar.es/mailman/listinfo/fis
Received on Tue Sep 13 12:00:27 2005
