1. Mori, J., Matsuo, Y., Ishizuka, M., Faltings, B.: Keyword extraction from the Web for FOAF metadata. In: Proceedings of the 1st Workshop on Friend of a Friend, Social Networking and the (Semantic) Web, (2004)
2. Konchady, M.: Text Mining Application Programming (Programming Se-ries). Charles River Media, Rockland (2006)
3. Porter, M.F.: An algorithm for suffix stripping. Program 14, 130–137 (1980)
4. Lopez, P.,Laurent, R.:HUMB:automatic key term extraction from scientific articles inGROBID, pp. 248–251. Computational Linguistics, July (2010)
5. Jacquemin, C., Didier, B.: Term extraction and automatic indexing. In: Mitkov, R. (ed.) Handbook of Computational Linguistics, pp. 599–615. Oxford University Press, Oxford (2003)