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package Set::Similarity::Jaccard; |
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655
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use strict; |
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32
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use warnings; |
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554
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use parent 'Set::Similarity'; |
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our $VERSION = '0.026'; |
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10
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sub from_sets { |
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30
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29
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my ($self, $set1, $set2) = @_; |
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13
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30
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53
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my $intersection = $self->intersection($set1,$set2); |
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30
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my $union = $self->combined_length($set1,$set2) - $intersection; |
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# ( A intersect B ) / (A union B) |
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126
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return ($intersection / $union); |
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} |
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1; |
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__END__ |