Class: WordAligner::Aligner

Inherits:
Object
  • Object
show all
Defined in:
lib/word_aligner/aligner.rb

Constant Summary collapse

INSERTION = 
1
DELETION = 
2
MATCHING = 
3
SUBSTITUTE = 
4

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(transcription, hypothesis) ⇒ Aligner

Returns a new instance of Aligner.



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# File 'lib/word_aligner/aligner.rb', line 19

def initialize(transcription, hypothesis)
  @transcription = transcription
  @hypothesis    = hypothesis

@insertions    = 0
@substitutions = 0
@deletions     = 0
@matching      = 0

  @reference_tokens = tokenize(transcription)
  @hypothese_tokens = tokenize(hypothesis)
end

Instance Attribute Details

#align_cost ⇒ Object

Returns the value of attribute align_cost.



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# File 'lib/word_aligner/aligner.rb', line 11

def align_cost
  @align_cost
end

#align_matrix ⇒ Object (readonly)

Returns the value of attribute align_matrix.



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# File 'lib/word_aligner/aligner.rb', line 17

def align_matrix
  @align_matrix
end

#aligned_hypothesis ⇒ Object

Returns the value of attribute aligned_hypothesis.



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# File 'lib/word_aligner/aligner.rb', line 12

def aligned_hypothesis
  @aligned_hypothesis
end

#aligned_transcription ⇒ Object

Returns the value of attribute aligned_transcription.



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# File 'lib/word_aligner/aligner.rb', line 12

def aligned_transcription
  @aligned_transcription
end

#backtrace_matrix ⇒ Object (readonly)

Returns the value of attribute backtrace_matrix.



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# File 'lib/word_aligner/aligner.rb', line 17

def backtrace_matrix
  @backtrace_matrix
end

#deletions ⇒ Object

Returns the value of attribute deletions.



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# File 'lib/word_aligner/aligner.rb', line 11

def deletions
  @deletions
end

#hypothese_tokens ⇒ Object (readonly)

Returns the value of attribute hypothese_tokens.



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# File 'lib/word_aligner/aligner.rb', line 15

def hypothese_tokens
  @hypothese_tokens
end

#hypothesis ⇒ Object (readonly)

Returns the value of attribute hypothesis.



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# File 'lib/word_aligner/aligner.rb', line 14

def hypothesis
  @hypothesis
end

#insertions ⇒ Object

Returns the value of attribute insertions.



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# File 'lib/word_aligner/aligner.rb', line 11

def insertions
  @insertions
end

#matching ⇒ Object

Returns the value of attribute matching.



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# File 'lib/word_aligner/aligner.rb', line 11

def matching
  @matching
end

#reference_tokens ⇒ Object (readonly)

Returns the value of attribute reference_tokens.



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# File 'lib/word_aligner/aligner.rb', line 15

def reference_tokens
  @reference_tokens
end

#substitutions ⇒ Object

Returns the value of attribute substitutions.



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# File 'lib/word_aligner/aligner.rb', line 11

def substitutions
  @substitutions
end

#transcription ⇒ Object (readonly)

Returns the value of attribute transcription.



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# File 'lib/word_aligner/aligner.rb', line 14

def transcription
  @transcription
end

Class Method Details

.align(original, hypothesis) ⇒ Object 



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# File 'lib/word_aligner/aligner.rb', line 38

def self.align(original, hypothesis)
  new(original, hypothesis).result
end

Instance Method Details

#word_error_rate ⇒ Object 



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# File 'lib/word_aligner/aligner.rb', line 32

def word_error_rate
  align_sentences if align_matrix.nil?

  WordErrorRate.new(result)
end