Unbalanced Data Classification in Fraud Detection by Introducing a Multidimensional Space Analysis Topics: Data security, data recovery, disaster recovery; E-Commerce and online banking; Intrusion and detection techniques; Software engineering for security modeling, business process modeling and analytics In Proceedings of the 3rd International Conference on Internet of Things, Big Data and Security IoTBDS - Volume 1, 29-40, 2018 , Funchal, Madeira, Portugal