Ryszard Kowalczyk & Jacek Mercik 
Transactions on Computational Collective Intelligence XXXIV 

These transactions publish research in computer-based methods of computational collective intelligence (CCI) and their applications in a wide range of fields such as performance optimization in Io T, big data, reliability, privacy, security, service selection, Qo S and machine learning. This thirty-fourth issue contains 12 selected papers which present new findings and innovative methodologies as well as discuss issues and challenges in the field of collective intelligence in group decision making with special emphasize given to voting theory, power indices and graphs while addressing elections, social choices, Io T and allocation algorithms.