IEEE ICDM 2010 Contest: TomTom Traffic Prediction for Intelligent GPS Navigation. - Marcin Wojnarski; Pawel Góra; Marcin S. Szczuka; Hung Son Nguyen; Joanna Swietlicka; Demetris Zeinalipour-Yazti (ICDM Workshops, 2010)

Report of the ISMIS 2011 Contest: Music Information Retrieval. - Bozena Kostek; Adam Kupryjanow; Pawel Zwan; Wenxin Jiang 002; Zbigniew W. Ras; Marcin Wojnarski; Joanna Swietlicka (ISMIS, 2011)