Rafael Falcón Gwanggil Jeon Kangjun Lee Rafael Bello Jechang Jeong Mechanisms of Partial Supervision in Rough Clustering Approaches. 38-45 2009 RSKT http://dx.doi.org/10.1007/978-3-642-02962-2_5 conf/rskt/2009 db/conf/rskt/rskt2009.html#FalconJLBJ09