Aufgrund von Vorbereitungen auf eine neue Version von KOPS, können derzeit keine Publikationen eingereicht werden. (Due to preparations for a new version of KOPS, no publications can be submitted currently.)
Type of Publication: | Contribution to a conference collection |
URI (citable link): | http://nbn-resolving.de/urn:nbn:de:bsz:352-225648 |
Author: | Rohrdantz, Christian; Krstajic, Milos; El Assady, Mennatallah; Keim, Daniel |
Year of publication: | 2012 |
Summary: |
Recent studies have shown that micro-blogging services such as Twitter can outperform online news aggregators in reaction time to breaking events. On the other hand, disadvantages of Twitter, such as low signal-to-noise ratio, inaccuracy of geographical data, and lack of in-depth analysis prevent it from becoming a reliable news source. In this paper, we investigate how the different information sources Twitter and online news can be integrated to gain a better understanding of current incidents for emergency response management. Our initial results suggest that the combination enables both a quick event detection and a long-term tracking of the topical and geo-spatial implications of an event. To achieve situational awareness we suggest a graph-based topic analysis approach building on top of Latent Dirichlet Allocation, as well as a new glyph design for plotting categorical data on a map, which can be used to compare news topics.
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Subject (DDC): | 004 Computer Science |
Comment on publication: | Published at the 2nd IEEE Workshop on Interactive Visual Text Analytics ”Task-Driven Analysis of Social Media” as part of the IEEE VisWeek 2012, October 15th, 2012, Seattle, Washington, USA, 2012. |
Link to License: | In Copyright |
Bibliography of Konstanz: | Yes |
ROHRDANTZ, Christian, Milos KRSTAJIC, Mennatallah EL ASSADY, Daniel KEIM, 2012. What’s Going On? How Twitter and Online News Can Work in Synergy to Increase Situational Awareness
@inproceedings{Rohrdantz2012Whats-22564, title={What’s Going On? How Twitter and Online News Can Work in Synergy to Increase Situational Awareness}, year={2012}, author={Rohrdantz, Christian and Krstajic, Milos and El Assady, Mennatallah and Keim, Daniel}, note={Published at the 2nd IEEE Workshop on Interactive Visual Text Analytics ”Task-Driven Analysis of Social Media” as part of the IEEE VisWeek 2012, October 15th, 2012, Seattle, Washington, USA, 2012.} }
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