how to use the function of "feature selection" under AI::Categorizer
by Jhoon other posts by this author
May 25 2007 4:09AM messages near this date
package AI::Categorizer::Collection::DBI;
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how to do feature selection
Hello,
Iâ??d like to select more important features using AI::Categorizer, and so
modified demo.pl as follows
=== FROM ===
my $k = AI::Categorizer::KnowledgeSet-> new( verbose => 1 );
=== TO ===
my $k = AI::Categorizer::KnowledgeSet-> new( verbose => 1,
feature_selector => new AI::Categorizer::FeatureSelector::DocFrequency(
ã?? verbose => 1,
ã?? features_kept => 1000
ã?? )
);
=== END ===
I observed the performance according to change the value of features_kept,
but the performance is always same. Iâ??d appreciate it if you tell me how
to do the feature selection using AI::Categorizer?
Thank you very much in advance.
Jae-Hoon.
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