Bug#216740: RFP: PAQ4 compressor

[Drew Scott Daniels <umdanie8@cc.UManitoba.CA>]

Package: wnpp
Severity: wishlist

Licence: GNU GPL v2 or later

http://www.cs.fit.edu/~mmahoney/compression/ says:
PAQ4 Archiver
PAQ4 mixes models using adaptive rather than fixed weights, and also
includes an improved model for data with fixed length records. This is all
explained in the source code.

paq4.cpp Source code (Oct. 16, 2003)


The reason I bring this attention to the ppmd package maintainer is that
it seems that for at least some files, the PAQ line gives better results
than ppmd, ppmonster... In fact it seems that PAQ4 may have done better on
compression the Calgary Corpus than any other open source compressor.

I haven't looked into the algorithms and some testing may be needed anyway
to see whether this could be a valuable (more than ppmd) contribution to
Debian.

     Drew Daniels