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Dialogue act tagging (Dialogue act (Speech Act Threory (Austin (Three…

- - - - Three generative categories
        
        Locutionary act which consists of the actual utterance and its exterior meaning
        
        illocutionary act, which is the real intended meaning of the utterance, its semantic force
        
        Perlocutionary act which is the practical effect of the utterance, such as scaring, persuading, and encouraging
- - - - Define the set of features from text input then apply one classifier
      - Feature-set
        
        Bag of word
        
        Tf-idf
        
        Length of utterance
        
        The tag of previous utterance
        
        LSA
      - Classifier
        
        SVM
        
        Decision Tree
        
        KMean
        
        Linear Regression
    - - Assume that the tag of previous utterance have effect on current utterance. Combine with classification result.
      - Approach
        
        HMM
        
        N-gram (compute condition probability one tag appear given n-1 tag before)
    - - Cue Phrase: : the characteristic phrase of one dialogue tag
      - Characteristic Pattern: Ex: "question Wh-question + Noun