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      Topic-centric Classification of Twitter User’s Political Orientation

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      Sixth BCS-IRSG Symposium on Future Directions in Information Access (FDIA 2015) (FDIA 2015)

      Future Directions in Information Access

      31 August - 4 September 2015

      Classification, Topic model, Bayesian theorem, Feature selection, Twitter

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          Abstract

          We aim to classify people’s voting intentions by the content of their Tweets about the Scottish Independence Referendum (hereafter, IndyRef). By observing the IndyRef dataset, we find that people not only discussed the vote, but raised topics related to an independent Scotland including oil reserves, currency, nuclear weapons, and national debt. We show that the views communicated on these topics can inform us of the individuals’ voting intentions (“Yes” vs. “No”). In particular, we argue that an accurate classifier can be designed by leveraging the differences in the features’ usage across different topics related to voting intentions. We demonstrate improvements upon a Naive Bayesian classifier using the topics enrichment method. Our new classifier identifies the closest topic for each unseen tweet, based on those topics identified in the training data. Our experiments show that our proposed Topics-Based Naive Bayesian classifier improves accuracy by 7.8% over the classical Naive Bayesian baseline.

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          Author and article information

          Contributors
          Conference
          September 2015
          September 2015
          : 38-40
          Affiliations
          University of Glasgow, UK
          Article
          10.14236/ewic/FDIA2015.10
          © Fang et al. Published by BCS Learning and Development Ltd. Proceedings of the 6 th Symposium on Future Directions in Information Access 2015

          This work is licensed under a Creative Commons Attribution 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

          Sixth BCS-IRSG Symposium on Future Directions in Information Access (FDIA 2015)
          FDIA 2015
          6
          Thessaloniki, Greece
          31 August - 4 September 2015
          Electronic Workshops in Computing (eWiC)
          Future Directions in Information Access

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