Class: SameSame::TermFrequencyBuilder

Inherits:
Object
  • Object
show all
Defined in:
lib/same_same/term_frequency_builder.rb

Class Method Summary collapse

Class Method Details

.build_vectors(x, y) ⇒ Object 



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# File 'lib/same_same/term_frequency_builder.rb', line 4

def self.build_vectors( x, y )
  all_attributes = {}
  x.each {|s| all_attributes[s] = 0x01}
  y.each {|s| all_attributes[s] = (all_attributes[s] || 0x00) | 0x02 }

  # create term frequency vectors
  term_freq_for_x = []
  term_freq_for_y = []
  all_attributes.each {|_, flags|
    term_freq_for_x << (flags & 0x01)
    term_freq_for_y << (flags >> 1)
  }
  [term_freq_for_x, term_freq_for_y]
end