Class: Opener::OpinionDetectors::ConfigurationCreator

Inherits:
Object
  • Object
show all
Includes:
ERB::Util
Defined in:
lib/opener/opinion_detectors/configuration_creator.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(language, domain, models_path) ⇒ ConfigurationCreator

Returns a new instance of ConfigurationCreator.



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# File 'lib/opener/opinion_detectors/configuration_creator.rb', line 12

def initialize(language, domain, models_path)
  @language = language
  @domain = domain
  @models_path = models_path ||= ENV["OPINION_DETECTOR_MODELS_PATH"]
  @config_file = Tempfile.new('opinion-detector-config')
end

Instance Attribute Details

#config_file ⇒ Object

Returns the value of attribute config_file.



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# File 'lib/opener/opinion_detectors/configuration_creator.rb', line 8

def config_file
  @config_file
end

#domain ⇒ Object (readonly)

Returns the value of attribute domain.



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# File 'lib/opener/opinion_detectors/configuration_creator.rb', line 7

def domain
  @domain
end

#language ⇒ Object (readonly)

Returns the value of attribute language.



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# File 'lib/opener/opinion_detectors/configuration_creator.rb', line 7

def language
  @language
end

Instance Method Details

#close_config ⇒ Object 



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# File 'lib/opener/opinion_detectors/configuration_creator.rb', line 26

def close_config
  config_file.close
end

#config_file_path ⇒ Object 



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# File 'lib/opener/opinion_detectors/configuration_creator.rb', line 19

def config_file_path
  config_file.write(render)
  config_file.rewind
  
  return config_file.path
end

#crfsuite_path ⇒ Object 



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# File 'lib/opener/opinion_detectors/configuration_creator.rb', line 42

def crfsuite_path
  File.expand_path("../../../../core/vendor/build/bin/crfsuite",__FILE__)
end

#models_path ⇒ Object 



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# File 'lib/opener/opinion_detectors/configuration_creator.rb', line 34

def models_path
  if @models_path.nil?
    raise ArgumentError, "Can't find a models path, please set the OPINION_DETECTOR_MODELS_PATH env variable"
  end
  path = File.expand_path(language, @models_path)
  return path
end

#render ⇒ Object 



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# File 'lib/opener/opinion_detectors/configuration_creator.rb', line 30

def render
  ERB.new(template).result(binding)
end

#svm_classify_path ⇒ Object 



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# File 'lib/opener/opinion_detectors/configuration_creator.rb', line 50

def svm_classify_path
  File.expand_path("../../../../core/vendor/build/bin/svm_classify", __FILE__)
end

#svm_learn_path ⇒ Object 



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# File 'lib/opener/opinion_detectors/configuration_creator.rb', line 46

def svm_learn_path
  File.expand_path("../../../../core/vendor/build/bin/svm_learn", __FILE__)
end

#template ⇒ Object 



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# File 'lib/opener/opinion_detectors/configuration_creator.rb', line 54

def template
  %{
[general]
output_folder = <%=models_path%>/<%=domain%>_cfg1

[feature_templates]
expression = <%=models_path%>/<%=domain%>_cfg1/feature_templates/feat_template_expr.txt
holder = <%=models_path%>/<%=domain%>_cfg1/feature_templates/feat_template_holder.txt
target = <%=models_path%>/<%=domain%>_cfg1/feature_templates/feat_template_target.txt

[valid_opinions]
negative = Negative;StrongNegative
positive = Positive;StrongPositive

[relation_features]
use_dependencies = True
use_training_lexicons = True
use_this_expression_lexicon = <%=models_path%>/<%=domain%>_cfg1/lexicons/polarity_lexicon.txt
use_this_target_lexicon = <%=models_path%>/<%=domain%>_cfg1/lexicons/target_lexicon.txt
use_tokens_lemmas = True
exp_tar_threshold = -0.75
exp_hol_threshold = -0.5

[crfsuite]
path_to_binary = <%= crfsuite_path %>
parameters = -a lbfgs

[svmlight]
path_to_binary_learn = <%= svm_learn_path %>
path_to_binary_classify = <%= svm_classify_path %>
parameters = -c 0.1
  }
end