S. Zhang, and K. Balog. Proceedings of the 26th ACM SIGKDD International Conference on Knowledge Discovery &$\mathsemicolon$ Data Mining, page 1512-1520. ACM, (August 2020)
K. Balog, F. Radlinski, and S. Arakelyan. Proceedings of the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval, page 265-274. ACM, (July 2019)