C. Thornton, F. Hutter, H. Hoos, and K. Leyton-Brown. Proceedings of the 19th ACM SIGKDD international conference on Knowledge discovery and data mining, page 847--855. ACM, (2013)
J. Manotumruksa, C. Macdonald, and I. Ounis. The 41st International ACM SIGIR Conference on Research & Development in Information Retrieval - SIGIR '18, page 555--564. New York, New York, USA, ACM Press, (2018)