@inproceedings{KKK+10, author = {Kisilevich, Slava and Krstajic, Milos and Keim, Daniel A. and Andrienko, Natalia and Andrienko, Gennady}, booktitle = {2nd International Symposium Visual Analytics}, title = {Event-based analysis of people's activities and behavior using Flickr and Panoramio geo-tagged photo collections}, year = {2010} }