tailieunhanh - Báo cáo khoa học: "A System for Real-time Twitter Sentiment Analysis of 2012 U.S"

This paper describes a system for real-time analysis of public sentiment toward presidential candidates in the 2012 . election as expressed on Twitter, a microblogging service. Twitter has become a central site where people express their opinions and views on political parties and candidates. Emerging events or news are often followed almost instantly by a burst in Twitter volume, providing a unique opportunity to gauge the relation between expressed public sentiment and electoral events. | A System for Real-time Twitter Sentiment Analysis of 2012 . Presidential Election Cycle Hao Wang Dogan Can Abe Kazemzadeh Pranẹois Bar and Shrikanth Narayanan Annenberg Innovation Laboratory AIL Signal Analysis and Interpretation Laboratory SAIL University of Southern California Los Angeles CA haowang@ dogancan@ kazemzad@ fbar@ shri@sipi . Abstract This paper describes a system for real-time analysis of public sentiment toward presidential candidates in the 2012 . election as expressed on Twitter a microblogging service. Twitter has become a central site where people express their opinions and views on political parties and candidates. Emerging events or news are often followed almost instantly by a burst in Twitter volume providing a unique opportunity to gauge the relation between expressed public sentiment and electoral events. In addition sentiment analysis can help explore how these events affect public opinion. While traditional content analysis takes days or weeks to complete the system demonstrated here analyzes sentiment in the entire Twitter traffic about the election delivering results instantly and continuously. It offers the public the media politicians and scholars a new and timely perspective on the dynamics of the electoral process and public opinion. 1 Introduction Social media platforms have become an important site for political conversations throughout the world. In the year leading up to the November 2012 presidential election in the United States we 115 have developed a tool for real-time analysis of sentiment expressed through Twitter a microblogging service toward the incumbent President Barack Obama and the nine republican challengers - four of whom remain in the running as of this writing. With this analysis we seek to explore whether Twitter provides insights into the unfolding of the campaigns and indications of shifts in public opinion. Twitter allows users to post tweets messages of up to 140 characters on its social .

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