Baoping Zhang Yuxin Chen Weiguo Fan Edward A. Fox Marcos André Gonçalves Marco Cristo Pável Calado Intelligent GP fusion from multiple sources for text classification. 477-484 2005 conf/cikm/2005 CIKM http://doi.acm.org/10.1145/1099554.1099688 db/conf/cikm/cikm2005.html#ZhangCFFGCC05