Date of Award

12-2017

Degree Name

MS in Computer Science

Department

Computer Science

Advisor

Alexander Dekhtyar

Abstract

In the modern world, huge amounts of text are being generated every minute. For example, Twitter users post their current emotions in tweets, while Facebook users vent about their experience in posts. In just one minute, Twitter users upload 350,000 tweets, and Facebook users post anywhere from 2.5 million to 3 million posts. To keep up with this growth in data, almost all of this information goes through automated text processing. To extract features such as the opinion and subjectivity in text, sentiment analysis is applied to the corpus. In this thesis, we present the TONGS library for conducting sentiment analysis. TONGS uses Word2Vec within the TensorFlow library to convert words into vector space representations. The TONGS library contains four different methods built upon previous research in sentiment analysis and Word2Vec. We further experiment and analyze these methods using the IMDB dataset. Finally, we introduce and test a new sentiment dataset from government hearings obtained through Digital Democracy, challenging the accuracy of the TONGS library in an unknown topic.

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