Alexey Tsymbal Sonja Zillner Martin Huber Feature Ontology for Improved Learning from Large-Dimensional Disease-Specific Heterogeneous Data. 595-600 2007 conf/cbms/2007 CBMS http://doi.ieeecomputersociety.org/10.1109/CBMS.2007.50 db/conf/cbms/cbms2007.html#TsymbalZH07