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Message from discussion The C-Prize
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Matt Mahoney  
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 More options Jun 19 2005, 5:20 pm
Newsgroups: comp.compression
From: "Matt Mahoney" <matmaho...@yahoo.com>
Date: 19 Jun 2005 14:20:39 -0700
Local: Sun, Jun 19 2005 5:20 pm
Subject: Re: The C-Prize

jim_bow...@hotmail.com wrote:
> My cohosting service gave me the go-ahead to wget
> http://download.wikimedia.org (rate limited to 1Mbps) so I should have
> the current versions of all products, plus their edit histories,
> captured around 7am Pacific time assuming I'm not rate limited by
> wikimedia.org itself.

I downloaded the English version, about a 949 MB gzip file,
uncompressing to 2.7 GB.  Took a few minutes with a cable modem.  WinME
can handle files over 2GB but a lot of programs like "type" apparently
can't, and give strange errors like "access denied".  gzip 1.2.4 dies.
gzip 1.3.5 works OK when used normally, but gzip -dc redirected to a
file gives an error, "GZIP.EXE: stdout: Bad file descriptor", and
truncates the output to 2 GB (which is actually what I want because I
can read it).

The data is not exactly plain text.  There is a lot of structure,
links, tables, etc.  Mostly this just adds complexity to the model but
still requires AI to solve so it should serve as a benchmark.  Here are
a few random snips.

o extend the cultural, educational and other benefits of the Framework
Convention for the Protection of National Minorities to the
Cornish.\n[[User:Bretagne 44| Bretagne 44]] 23/3/05\n\nIf there truly
is a Cornish nation, then it shouldn\'t even be on the [[English
(people)|article]], which is about the English nation. A nation which
is (linguistically, culturally and possibly genetically) related to the
[[Germans]], the [[Dutch]], the [[Lowland Scots]], the [[Protestant]]s
of

450;ナキズム]]\n[[no:Anarkisme]]\n[[pl:Anarchizm]]\n[[pt
:Anarquismo]]\n[[ru:Анархизм]]\n
[[simple:Anarchism]]\n[[sr:Анархиз

72;м]]\n[[sv:Anarkism]]\n[[th:ลัทธิอ&#
3609;าธิปไตย]]','spelling',0,'205.206.
13.77','20050516015104','move=:edit=',5252,0,0,0,0.786172332974311,'7994948 39848
95','20050516015104'),(13,0,'AfghanistanHistory','#REDIRECT [[History
of Afghanistan]]','whoops',4,'Magnus
Manske','20020827030744','',5,1,1,0,0.062150286568468

 Retardation and Developmental Disabilities Research Reviews | Volume=8
| Issue=3 | Year=2002 | Pages=151–61}}
[[http://www.ncbi.nlm.nih.gov/entrez/query.
fcgi?cmd=Retrieve&db=PubMed&list_uids=12216059&dopt=Abstract
abstract])\n\n* {{Journal reference issue | Author=Croen LA, Grether
JK, Hoogstrate J, Selvin S. |

-- Matt Mahoney


 
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