Method: BLEU.best_match_length

Defined in:
lib/zipf/bleu.rb

.best_match_length(hypothesis, references) ⇒ Object 



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# File 'lib/zipf/bleu.rb', line 65

def BLEU::best_match_length hypothesis, references
  hyp_len = hypothesis.strip.split.size 
  ref_lens = references.map { |r| r.strip.split.size }
  min = Integer::MAX
  min_idx = -1
  ref_lens.each_with_index { |l,i|
    min_idx = i if (hyp_len-l).abs < min
  }
  return hyp_len, ref_lens[min_idx]
end