Marios Papas Josep-Lluis Larriba-Pey Pedro Trancoso Categorized Sliding Window in Streaming Data Management Systems. 625-634 2008 DEXA http://dx.doi.org/10.1007/978-3-540-85654-2_52 conf/dexa/2008 db/conf/dexa/dexa2008.html#PapasLT08