Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!rpi!sigma
From: sigma@jec302.its.rpi.edu (Kevin J Martin)
Newsgroups: comp.compression
Subject: Re: DDJ compression competition FLAME
Message-ID: <1lbgnl.@rpi.edu>
Date: 8 Apr 91 23:02:41 GMT
References: <1991Apr8.160133.22070@kcbbs.gen.nz>
Lines: 21
Nntp-Posting-Host: jec302.its.rpi.edu

Peter_Gutmann@kcbbs.gen.nz (Peter Gutmann) writes:
>#flame on  
>  A few days ago I finally managed to get hold of the Feb'91 DDJ.  There were 
>two things about the compression competition that disturbed me:  
>  
>1. The test data is known in advance...
[other valid complaints deleted]

I just got back to looking at the article on arithmetic coding -
specifically the listings in the back.  The programs as presented are
incomplete!  The description in the article would lead one to believe that
the given listings implement a functional 2nd order adaptive arithmetic
coder.  However, there are several files missing, such as bitio.c, bitio.h,
coder.c, and coder.h.

Luckily, the complete listings are apparently available on simtel20 and its
mirroring sites.  I haven't checked those listings yet, though.

-- 
Kevin Martin
sigma@rpi.edu