D. Avramouli John D. Garofalakis Dimitris J. Kavvadias Christos Makris Yannis Panagis Evangelos Sakkopoulos Popular web hot spots identification and visualization. 912-913 2005 conf/www/2005si WWW (Special interest tracks and posters) http://doi.acm.org/10.1145/1062745.1062794 db/conf/www/www2005si.html#AvramouliGKMPS05