Name
Title | ||
|---|---|---|
Word-Clouds in the Sky: Multi-layer Spatio-Temporal Event Visualization from a Geo-Parsed Microblog Stream |
Abstract | ||
|---|---|---|
Various events, such as public gatherings, traffic accidents, and natural disasters, occur every day in mega-cities. Although understanding such ever-changing events over all these cities is important for urban planning, traffic management, and disaster response, this is quite a huge challenge. This paper proposes a method of visualizing spatio-temporal events with a multi-layered geo-locational word-cloud representation from a geo-parsed microblog stream. Real-time geo-parsing first geo-locates posts in the stream, using geo-tags and mentioned places and facilities as clues. Temporal local events are then identified and represented by a set of words specifically observed in a certain location and time grid, and then displayed above a map as word-clouds. We detect the locality of events to split them into multiple layers to avoid occlusions between local (e.g., music concerts) and global (e.g., earthquakes and marathon races) events. Users can thereby distinguish local from global events, and see their interactions over the layered maps. We demonstrate the effectiveness of our method by applying it to real events extracted from our archive accumulated from five years of Twitter posts. |
Year | DOI | Venue |
|---|---|---|
2016 | 10.1109/IV.2016.62 | 2016 20th International Conference Information Visualisation (IV) |
Keywords | Field | DocType |
Social media,text analytics,spatio-temporal visualization | Data mining,Locality,Social media,Visualization,Microblogging,Natural disaster,Urban planning,Parsing,Geography,Grid | Conference |
ISSN | ISBN | Citations |
1550-6037 | 978-1-4673-8943-3 | 0 |
PageRank | References | Authors |
0.34 | 21 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Masahiko Itoh | 1 | 9 | 2.95 |
| Naoki Yoshinaga | 2 | 117 | 17.13 |
| Masashi Toyoda | 3 | 388 | 49.87 |