Arianna D'Ulizia Fernando Ferri Patrizia Grifoni A Semantic and Structural Similarity Approach to Personalize Location-Based Services. 33-47 2007 conf/dnis/2007 DNIS http://dx.doi.org/10.1007/978-3-540-75512-8_3 db/conf/dnis/dnis2007.html#DUliziaFG07