Twitter Topic Modeling

Introduction

The EPFL Media Control Room project is concerned with classifying tweets that are related to and about EPFL as well as displaying or visualizing them in an interesting manner in order to get an idea of what EPFL-related events are happening or how EPFL is being discussed (in a positive or negative way for example).  The visualization of the tweets along with their respective classes was envisioned to be displayed in a media control room for further examination and analysis by the operators as well as for taking the appropriate actions.  The following two sections describe how the two tasks of  i) tweet classification and ii) visualization were carried out. Then further suggestions are included in the conclusion.

Tweet Classification

The first step for classification was naturally to retrieve from Twitter all tweets connected with the keyword “epfl”. Tweets at one time were retrieved in one language only. For…

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