R. Agrawal, S. Gollapudi, A. Kannan, and K. Kenthapadi. Proceedings of the 20th International Conference Companion on World Wide Web, page 483--492. New York, NY, USA, ACM, (2011)
M. Houbraken, C. Sun, E. Smirnov, and K. Driessens. Adjunct Publication of the 25th Conference on User Modeling, Adaptation and Personalization, page 147--152. New York, NY, USA, ACM, (2017)
B. Bullock, H. Lerch, A. Roßnagel, A. Hotho, and G. Stumme. Proceedings of the 11th International Conference on Knowledge Management and Knowledge Technologies, page 15:1--15:8. New York, NY, USA, ACM, (2011)