S. Bloehdorn, and A. Moschitti. CIKM '07: Proceedings of the sixteenth ACM conference on Conference on information and knowledge management, page 861--864. New York, NY, USA, ACM, (2007)
G. Siolas, and F. d'Alché Buc. IJCNN '00: Proceedings of the IEEE-INNS-ENNS International Joint Conference on Neural Networks (IJCNN'00)-Volume 5, page 5205. Washington, DC, USA, IEEE Computer Society, (2000)
X. Li, and D. Roth. Proceedings of the 19th international conference on Computational linguistics, page 1--7. Morristown, NJ, USA, Association for Computational Linguistics, (2002)
M. Collins, and N. Duffy. ACL '02: Proceedings of the 40th Annual Meeting on Association for Computational Linguistics, page 263--270. Morristown, NJ, USA, Association for Computational Linguistics, (2002)
A. Moschitti, and F. Zanzotto. ICML '07: Proceedings of the 24th international conference on Machine learning, page 649--656. New York, NY, USA, ACM, (2007)
R. Swan, and J. Allan. CIKM '99: Proceedings of the eighth international conference on Information and knowledge management, page 38--45. New York, NY, USA, ACM, (1999)
J. Kleinberg. KDD '02: Proceedings of the eighth ACM SIGKDD international conference on Knowledge discovery and data mining, page 91--101. New York, NY, USA, ACM, (2002)