Web Mining: From Web to Semantic Web : First European Web Mining Forum, EWMF 2003, Cavtat-Dubrovnik, Croatia, September 22, 2003, Revised Selected and Invited Papers - Bettina Berendt, Andreas Hotho, Dunja Mladeni., Maarten Someren, Myra Spiliopoulou, Gerd Stumme ((Lecture Notes in Computer Science))