Davide Menegon Stefano Mizzaro Elena Nazzi Luca Vassena Evaluating Mobile Proactive Context-Aware Retrieval: An Incremental Benchmark. 362-365 2009 ICTIR http://dx.doi.org/10.1007/978-3-642-04417-5_40 conf/ictir/2009 db/conf/ictir/ictir2009.html#MenegonMNV09