1[1]J.Brutlag, J.Meek.Challenges of the Email Domain for Text Classi-cation.in Proceedings of the 17th International Conference on Machine Learning ICML00.103-110,2000
2[2]Jose María Abasolo,Mario Gómez MELISA.An Ontology-based Agent for Informationretrieval in Medicine.http://www.ics.forth.gr/proj/isst/SemWeb/./proceedings/session3-1/paper.pdf.