Zhen Peng Bingru Yang Weiwei Fang A Learning Algorithm of Fuzzy Cognitive Map in Document Classification. 501-504 2008 FSKD (1) http://dx.doi.org/10.1109/FSKD.2008.45 conf/fskd/2008-1 db/conf/fskd/fskd2008-1.html#PengYF08