In: Miltos Petridis; Thomas Roth-Berghofer; Nirmalie Wiratunga (Hrsg.). Proceedings of the 20th UK Workshop on Case-Based Reasoning. UK Workshop on Case-Based Reasoning (UKCBR-2015), located at SGAI International Conference on Artificial Intelligence, December 15-17, Cambridge, United Kingdom, Pages 4-14, School of Computing, Engineering and Mathematics, University of Brighton, UK, 2015.