Gianluigi Folino Clara Pizzuti Giandomenico Spezzano Mining Distributed Evolving Data Streams Using Fractal GP Ensembles. 160-169 2007 conf/eurogp/2007 EuroGP http://dx.doi.org/10.1007/978-3-540-71605-1_15 db/conf/eurogp/eurogp2007.html#FolinoPS07