In Bayes.pm, there's a list of common words to skip during tokenization, aka the "stop-list". Use something like Regexp::Trie to generate an optimized regexp to catch them all. ala:
perl -MRegexp::Trie -nle 'BEGIN{$r=Regexp::Trie->new;} $r->add($_); END {print $r->regexp,"\n"}'
Original list:
able all already and any are because both can come each email even few first for from give has have http information into it's just know like long look made mail mailing mailto make many more most much need not now number off one only out own people place right same see such that the this through time using web where why with without work world year years you you're your
If it's any use, a listing of the top 500 most common English words is available at: http://www.world-english.org/english500.htm
(words with length < 3 removed)
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