README for a Conversion Script for Xinhua News Service articiles

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Data conversion script "xie2ntc.pl":

"xie2ntc.pl" is a script for format conversion of document data "Xinhua News 
Service" from Aquiant Corpus' format to NTCIR-4 WS data format.

USAGE:

% perl xie2ntc.pl <DIR> <output-file>

<DIR> is supposed to be a directory on which "Xinhua News Service" document 
files in each year of 1998 and 1999.
For exmaple, if there are "Xinhua New Service" document files for 1998 on
a directory "XIE/1998", you can input as follows:

% perl xie2ntc.pl XIE/1998 ntc4-e-xie98.txt

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Data file size:

The original "Xinhua News Service" data set has a file for each day
in 1998 and 1999, that is, 365 files for 1998 and 365 files for 1999,
amounted to 730 files.

"xie2ntc.pl" converts to multiple files on a directory to a file.
If you convert the files for 1998 and 1999 separetely by the script, 
converted files' sizes are as follows:

XIE/1998  ->  ntc4-e-xie98.txt  #103,470  144.4MB
XIE/1999  ->  ntc4-e-xie99.txt  #104,698  145.9MB
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total                           #208,168  290.2MB

#: the number of documents