Intelligent techniques for web personalization : IJCAI 2003 workshop, ITWP 2003, Acapulco, Mexico, August 11, 2003 : revised selected papers / Bamshad Mobasher, Sarabjot Singh Anand (eds.) - Mobasher, Bamshad; Anand, Sarabjot S. (Lecture notes in computer science, 2005)