Claudine Santos Badue Ricardo A. Baeza-Yates Berthier A. Ribeiro-Neto Artur Ziviani Nivio Ziviani Modeling performance-driven workload characterization of web search systems. 842-843 2006 conf/cikm/2006 CIKM http://doi.acm.org/10.1145/1183614.1183758 db/conf/cikm/cikm2006.html#BadueBRZZ06