Tweet Classification for Political Sentiment Analysis Micol Marchetti-Bowick

Problem Overview

Tweet Sentiment

Sentiment Classifier automatically labeled tweet sentiment using emoticons trained a Naïve Bayes classifier on 2M tweets used both unigram and bigram features 79% test accuracy on 0.5M labeled tweets

Tweet Political Relevance

Political Classifier automatically labeled tweet political relevance using key terms trained a Naïve Bayes classifier on 2M tweets used both unigram and bigram features 96% test accuracy on 0.5M labeled tweets

Obama Sentiment Analysis correlation coefficient = (approval), (disapproval)

General Political Sentiment Analysis correlation coefficient = (approval), (disapproval)