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Learning Sentence Representation for Emotion Classification on Microblogs

Learning Sentence Representation for Emotion Classification on Microblogs. Duyu Tang, Bing Qin, Ting Liu, Zhenghua Li HIT-SCIR 10/21/2014. Outline. Motivation Representation Learning for Emotion Classification Experiment Results Conclusion and Future Work. Emotion Analysis on Microblog.

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Learning Sentence Representation for Emotion Classification on Microblogs

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  1. Learning Sentence Representation for Emotion Classification on Microblogs Duyu Tang, Bing Qin, Ting Liu, Zhenghua Li HIT-SCIR 10/21/2014

  2. Outline • Motivation • Representation Learning for Emotion Classification • Experiment Results • Conclusion and Future Work

  3. Emotion Analysis on Microblog • Microblog, such as Weibo, has become a popular platform to share opinions about products or hot events.

  4. Task • Emotion Classification • Classify a text as Happy, Sad, Angry or Surprise • Prior Work • Supervised [Pang2002, Mishne2006] • Distant Supervision [Go2009, Liu2012] • Unsupervised [Turney2002, Ding2008]

  5. Outline • Motivation • Representation Learning for Emotion Classification • Experiment Results • Conclusion and Future Work

  6. Representation Learning • Traditional • The bag-of-word representation can not capture the complex linguistic phenomena. • Manufacturing feature engines is time-consuming. • Learning based method • Deep Belief Networks • Text with emoticons

  7. Deep Belief Networks • Architecture

  8. Data Collection • Emotions from Weibo

  9. Input Layer • Top frequent unigrams • Punctuation • Lexicons • Emotion word • Onomatopoeia word • Function word

  10. Outline • Motivation • Representation Learning for Emotion Classification • Experiment Results • Conclusion and Future Work

  11. Dataset • Emoticon data • 20,000 weibo (balanced for each category) • Labeled data

  12. Results

  13. Results

  14. Outline • Motivation • Representation Learning for Emotion Classification • Experiment Results • Conclusion and Future Work

  15. Conclusion • Emotion classification on Weibo • Learning sentence representation on emoticon data via deep belief network • For future • Word representation for sentiment analysis • Compositionality for sentiment analysis

  16. Questions?

  17. Back Up

  18. Emoticon Selection

  19. Detailed Params • Lexicons • Architecture

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