An Unbalanced Data Classification Model Using Hybrid Sampling Technique for Fraud Detection - T. Maruthi Padmaja; Narendra Dhulipalla; P. Radha Krishna; Raju S. Bapi; Arijit Laha (Pattern Recognition and Machine Intelligence, Second International Conference, PReMI 2007, Kolkata, India, December 18-22, 2007, Proceedings, 2007)