J. Borges, and M. Levene. European Conference on Principles and Practice of Knowledge Discovery in Databases (PKDD), page 34--45. Berlin, Heidelberg, Springer Berlin Heidelberg, (2005)
S. Chen, J. Moore, D. Turnbull, and T. Joachims. Proceedings of the 18th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, page 714--722. New York, NY, USA, ACM, (2012)
S. Chen, J. Xu, and T. Joachims. Proceedings of the 19th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, page 865--873. New York, NY, USA, ACM, (2013)
A. Asahara, K. Maruyama, A. Sato, and K. Seto. International Conference on Advances in Geographic Information Systems (SIGSPATIAL), page 25--33. New York, NY, USA, ACM, (2011)