06-24-2012
Linguistic project: extract co-occurrences from text corpus
Hello guys,
I've got a big corpus (a huge text file in which words are separated by one or several spaces). I would like to know if there is a simple way - using awk for instance - to extract any co-occurrence appearing at least 3times through the whole corpus for a given word. By co-occurrence, here, I mean every word that appears to the left of this given word.
For instance: "dog"
big dog (appearing 4 times)
mean dog (appearing 3 times)
blue dog (appearing only once, thus excluded)
The output would look something like this:
big dog 4
mean dog 3
The cherry on top would be to add a condition that would exclude any combination separated by "." in the middle to avoid this scenario (for "dogs"):
Shell scripting is hard. Dogs are...
"hard. Dogs" would be rejected.
I could try to do it on my own if you would be kind enough to point me in the right direction.
Thank you very much !
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IGAWK(1) Utility Commands IGAWK(1)
NAME
igawk - gawk with include files
SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ...
igawk [ all gawk options ] [ -- ] program-text file ...
DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1).
AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like
@include getopt.awk
in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path.
OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports.
EXAMPLES
cat << EOF > test.awk
@include getopt.awk
BEGIN {
while (getopt(ARGC, ARGV, "am:q") != -1)
...
}
EOF
igawk -f test.awk
SEE ALSO
gawk(1)
Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995.
AUTHOR
Arnold Robbins (arnold@skeeve.com).
Free Software Foundation Nov 3 1999 IGAWK(1)