The document provides the preliminary program for the 13th International Conference on Intelligent Data Engineering and Automated Learning (IDEAL 2012) being held August 29-31, 2012 in Natal, Rio Grande do Norte, Brazil. The program includes details on plenary talks, technical sessions, social events and post-event activities over the three day period. Plenary speakers will discuss topics such as on-line kernel learning, controlled self-organization in complex systems, and trends in neuroscience and data mining. Technical sessions will cover subject areas including clustering, image processing, machine learning, evolutionary computation, data mining and neural networks. Social events incorporate an opening cocktail, conference dinner and visit to local beaches.