M. Kelly, D. Hand, and N. Adams. KDD '99: Proceedings of the fifth ACM SIGKDD international conference on Knowledge discovery and data mining, page 367--371. New York, NY, USA, ACM, (1999)
S. Acharyya, S. Negi, L. Subramaniam, and S. Roy. AND '08: Proceedings of the second workshop on Analytics for noisy unstructured text data, page 67--74. New York, NY, USA, ACM, (2008)