D. Melidis, M. Spiliopoulou, and E. Ntoutsi. Proceedings of the 27th ACM International Conference on Information and Knowledge Management - CIKM '18, (2018)
G. Krempl, D. Kottke, and M. Spiliopoulou. Proceedings of the 21st European Conference on Artificial Intelligence (ECAI2014), August 18 -- 22, 2014, Prague, Czech Republic, volume 263 of Frontiers in Artificial Intelligence and Applications, IOS Press, (2014)