Eduardo L. G. Escovar Cristiane A. Yaguinuma Mauro Biajiz Using Fuzzy Ontologies to Extend Semantically Similar Data Mining. 16-30 2006 conf/sbbd/2006 SBBD http://www.lbd.dcc.ufmg.br:8080/colecoes/sbbd/2006/002.pdf db/conf/sbbd/sbbd2006.html#EscovarYB06