Gloria Bordogna Alessandro Campi Giuseppe Psaila Stefania Ronchi Query Disambiguation Based on Novelty and Similarity User's Feedback. 179-190 2009 FQAS http://dx.doi.org/10.1007/978-3-642-04957-6_16 conf/fqas/2009 db/conf/fqas/fqas2009.html#BordognaCPR09