1. Ontology ranking based on the analysis of concept structures;Alani,2005
2. IKARUS-Onto: a methodology to develop fuzzy ontologies from crisp ones;Alexopoulos;Knowl. Inf. Syst.,2011
3. Natural Language Understanding;Allen,1987
4. A protégé plug-in for ontology extraction from text based on linguistic analysis;Buitelaar,2003
5. Graph-based tools for data mining and machine learning;Bunke,2003