SiCi Explorer: Situation Monitoring of Cities in Social Media Streaming Data

The continuous growth of social networks and the active use of social media services result in massive amounts of user-generated data. More and more people worldwide report and distribute up-to-date information about almost any topic. Therefore, we argue that this kind of data is a good basis to observe ongoing situations in cities as well as related situations from outside about these cities in real-time. This paper presents a visualization for monitoring the situation (current topics and emotions) in cities and about cities, which is reflected in the live message stream of the social microblogging service Twitter, by using continuously updating and with sentiment colored TagClouds.