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What they think about my brand/product ?!?!? An Introduction to Sentiment Analysis

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Jaganadh Gopinadhan
Jaganadh Gopinadhan

What they think about my brand/product ?!?!? An Introduction to Sentiment Analysis

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What they think about my brand/product ?!?!? An Introduction to Sentiment Analysis Jaganadh G Project Lead NLP R&D 365Media Pvt. Ltd. jaganadhg@gmail.com National Seminar on Semantic Information Retrieval National Institute of Technology Tiruchirapally 30th Jan 2012 Jaganadh G What they think about my brand/product ?!?!?
About me !! Software Engineer Specializing in Text Analytics Research & Development When free, teaches Python, Speaks about FOSS and blogs at http://jaganadhg.in Working as Project Lead (NLP) 365Media Pvt. Ltd. Coimbatore I am a computational linguist / Linguist and Indologist, Book reviewer Maters Degree Holder in Sanskrit from University of Kerala Jaganadh G What they think about my brand/product ?!?!?
Introduction Web Today Jaganadh G What they think about my brand/product ?!?!?
Introduction Sentiment Picture Courtesy: http://webanalysis.blogspot.com/2011/09/sentiment-indicator-social-media-kpi.html Jaganadh G What they think about my brand/product ?!?!?
Introduction What other people think!!! Jaganadh G What they think about my brand/product ?!?!?
Introduction Friends and Family Picture Courtesy: http://ianvaleza.com/mlm-secrets-warm-market-approach-strategies/ Jaganadh G What they think about my brand/product ?!?!?
Introduction Survey Picture Courtesy: http://www.oksociety.in/the-guest-for-legitmate-sites-for-paid-surveys/ Jaganadh G What they think about my brand/product ?!?!?
Introduction Blogs, Forums, Social Network .... Picture Courtesy: http://imfoundation.blogspot.com/p/im-forumsblogs.html Picture Courtesy:http://www.my-social-network.org/ Jaganadh G What they think about my brand/product ?!?!?
Introduction Issues with blogs and forums Picture Courtesy: http://www.asunseenontv.com/4-fake-reviews/ Jaganadh G What they think about my brand/product ?!?!?
Introduction Now : Sentiment Analysis Jaganadh G What they think about my brand/product ?!?!?
What is Sentiment Analysis Sentiment Analysis Automated extraction of subjective content from digital text and predicting the subjectivity such as positive or negative. Jaganadh G What they think about my brand/product ?!?!?
Subjectivity Subjectivity Linguistic expression of somebody’s emotions, opinions, sentiment ....... Picture Courtesy: http://www.asunseenontv.com/4-fake-reviews/ Jaganadh G What they think about my brand/product ?!?!?
Subjective Text Sources Social Media Picture Courtesy: http://www.alchemyuk.com/online marketing/social media marketing.php Jaganadh G What they think about my brand/product ?!?!?
Example Review Nokia Lumia 800 Review Courtesy: http://www.techradar.com/reviews/phones/mobile-phones/nokia-lumia-800-1039101/user-review Jaganadh G What they think about my brand/product ?!?!?
The Big Picture Sentiment Analysis Jaganadh G What they think about my brand/product ?!?!?
Basics of Sentiment Analysis Components of Opinion Jaganadh G What they think about my brand/product ?!?!?
Basics of Sentiment Analysis Opinion Definition Jaganadh G What they think about my brand/product ?!?!?
Components of Sentiment Analysis Components Jaganadh G What they think about my brand/product ?!?!?
Approaches Approaches Lexicon based Supervised Learning Unsupervised Learning Keyword Jaganadh G What they think about my brand/product ?!?!?
Issues and Challenges Challenges Picture Courtesy: http://inventionmachine.com/the-Sustainable-Innovation-Blog/bid/51703/Three-Key- Challenges-to-Entering-New-Markets Jaganadh G What they think about my brand/product ?!?!?
Issues and Challenges Challenges Language Domain Spam Named Entity Identification Reliable content Jaganadh G What they think about my brand/product ?!?!?
Questions ?? Jaganadh G What they think about my brand/product ?!?!?
References B. Pang, Lillian Lee Opinion Mining and Sentiment Analysis, Now Publishers Inc, July 2008. B. Pang, Lillian Lee, S Vaithyanathan Thumbs up? sentiment classification using machine learning techniques, 2002. Jaganadh G What they think about my brand/product ?!?!?
Finally Jaganadh G What they think about my brand/product ?!?!?

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What they think about my brand/product ?!?!? An Introduction to Sentiment Analysis

  • 1. What they think about my brand/product ?!?!? An Introduction to Sentiment Analysis Jaganadh G Project Lead NLP R&D 365Media Pvt. Ltd. jaganadhg@gmail.com National Seminar on Semantic Information Retrieval National Institute of Technology Tiruchirapally 30th Jan 2012 Jaganadh G What they think about my brand/product ?!?!?
  • 2. About me !! Software Engineer Specializing in Text Analytics Research & Development When free, teaches Python, Speaks about FOSS and blogs at http://jaganadhg.in Working as Project Lead (NLP) 365Media Pvt. Ltd. Coimbatore I am a computational linguist / Linguist and Indologist, Book reviewer Maters Degree Holder in Sanskrit from University of Kerala Jaganadh G What they think about my brand/product ?!?!?
  • 3. Introduction Web Today Jaganadh G What they think about my brand/product ?!?!?
  • 4. Introduction Sentiment Picture Courtesy: http://webanalysis.blogspot.com/2011/09/sentiment-indicator-social-media-kpi.html Jaganadh G What they think about my brand/product ?!?!?
  • 5. Introduction What other people think!!! Jaganadh G What they think about my brand/product ?!?!?
  • 6. Introduction Friends and Family Picture Courtesy: http://ianvaleza.com/mlm-secrets-warm-market-approach-strategies/ Jaganadh G What they think about my brand/product ?!?!?
  • 7. Introduction Survey Picture Courtesy: http://www.oksociety.in/the-guest-for-legitmate-sites-for-paid-surveys/ Jaganadh G What they think about my brand/product ?!?!?
  • 8. Introduction Blogs, Forums, Social Network .... Picture Courtesy: http://imfoundation.blogspot.com/p/im-forumsblogs.html Picture Courtesy:http://www.my-social-network.org/ Jaganadh G What they think about my brand/product ?!?!?
  • 9. Introduction Issues with blogs and forums Picture Courtesy: http://www.asunseenontv.com/4-fake-reviews/ Jaganadh G What they think about my brand/product ?!?!?
  • 10. Introduction Now : Sentiment Analysis Jaganadh G What they think about my brand/product ?!?!?
  • 11. What is Sentiment Analysis Sentiment Analysis Automated extraction of subjective content from digital text and predicting the subjectivity such as positive or negative. Jaganadh G What they think about my brand/product ?!?!?
  • 12. Subjectivity Subjectivity Linguistic expression of somebody’s emotions, opinions, sentiment ....... Picture Courtesy: http://www.asunseenontv.com/4-fake-reviews/ Jaganadh G What they think about my brand/product ?!?!?
  • 13. Subjective Text Sources Social Media Picture Courtesy: http://www.alchemyuk.com/online marketing/social media marketing.php Jaganadh G What they think about my brand/product ?!?!?
  • 14. Example Review Nokia Lumia 800 Review Courtesy: http://www.techradar.com/reviews/phones/mobile-phones/nokia-lumia-800-1039101/user-review Jaganadh G What they think about my brand/product ?!?!?
  • 15. The Big Picture Sentiment Analysis Jaganadh G What they think about my brand/product ?!?!?
  • 16. Basics of Sentiment Analysis Components of Opinion Jaganadh G What they think about my brand/product ?!?!?
  • 17. Basics of Sentiment Analysis Opinion Definition Jaganadh G What they think about my brand/product ?!?!?
  • 18. Components of Sentiment Analysis Components Jaganadh G What they think about my brand/product ?!?!?
  • 19. Approaches Approaches Lexicon based Supervised Learning Unsupervised Learning Keyword Jaganadh G What they think about my brand/product ?!?!?
  • 20. Issues and Challenges Challenges Picture Courtesy: http://inventionmachine.com/the-Sustainable-Innovation-Blog/bid/51703/Three-Key- Challenges-to-Entering-New-Markets Jaganadh G What they think about my brand/product ?!?!?
  • 21. Issues and Challenges Challenges Language Domain Spam Named Entity Identification Reliable content Jaganadh G What they think about my brand/product ?!?!?
  • 22. Questions ?? Jaganadh G What they think about my brand/product ?!?!?
  • 23. References B. Pang, Lillian Lee Opinion Mining and Sentiment Analysis, Now Publishers Inc, July 2008. B. Pang, Lillian Lee, S Vaithyanathan Thumbs up? sentiment classification using machine learning techniques, 2002. Jaganadh G What they think about my brand/product ?!?!?
  • 24. Finally Jaganadh G What they think about my brand/product ?!?!?