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Discovering bits of place histories from people's activity traces

: Andrienko, G.; Andrienko, N.; Mladenov, M.; Mock, M.; Pölitz, C.


Institute of Electrical and Electronics Engineers -IEEE-:
IEEE Symposium on Visual Analytics Science and Technology 2010. Proceedings : VAST 2010, October 24 - 28, Salt Lake City, Utah, USA
Piscataway: IEEE Computer Society, 2010
ISBN: 978-1-4244-9486-6
Symposium on Visual Analytics Science and Technology (VAST) <2010, Salt Lake City/Utah>
Fraunhofer IAIS ()

Events that happened in the past are important for understanding the ongoing processes, predicting future developments, and making informed decisions. Significant and/or interesting events tend to attract many people. Some people leave traces of their attendance in the form of computer-processable data, such as records in the databases of mobile phone operators or photos on photo sharing web sites. We developed a suite of visual analytics methods for reconstructing past events from these activity traces. Our tools combine geocomputations, interactive geovisualizations and statistical methods to enable integrated analysis of the spatial, temporal, and thematic components of the data, including numeric attributes and texts. We demonstrate the utility of our approach on two large real data sets, mobile phone calls in Milano during 9 days and flickr photos made on British Isles during 5 years.