Re: Best existing binary compressor method?
- From: biject <davvid_a_scott@xxxxxxxxx>
- Date: Mon, 18 Feb 2008 09:41:47 -0800 (PST)
On Feb 18, 6:35 am, Einstein <michae...@xxxxxxxxx> wrote:
I was wondering which compression routine is established as the best
binary compression system. Total capacity.
I would like to see how it works so I can see if the different values
and permutations I obtained can launch any results.
It depends on what you mean by binary. But if you
change the string to ascii 1's and 0's your can use BWTS
to get the sort of the string then use a rle + entropy coder
that works on the resultant string to compress it back to
the space of all strings.
You can bijective convert the string to a 8-bit byte style file and
then use something like my bijective LZW.
If the sting is long use some version of PAQ* since the last stage
is nothing but a 2 state compressor. convert to bytes use PAQ*
then convert to binary.
Actually no best compressor in general. You can only compress
based on assuming the data fits some model. Since no matter what
you do other than identity trying to compress all binary strings.
you will expand more strings than you make smaller its just the
way things are.
David A. Scott
--
My Crypto code
http://bijective.dogma.net/crypto/scott19u.zip
http://www.jim.com/jamesd/Kong/scott19u.zip old version
My Compression code http://bijective.dogma.net/
**TO EMAIL ME drop the roman "five" **
Disclaimer:I am in no way responsible for any of the statements
made in the above text. For all I know I might be drugged.
As a famous person once said "any cryptograhic
system is only as strong as its weakest link"
.
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- From: Einstein
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