His research is primarily concerned with evaluation in IR, working in both the music and text domains. Current topics of interest are the application of statistical methods for the construction of datasets, the reliability of evaluation experiments, statistical significance testing for IR, low-cost evaluation and stochastic simulation for evaluation. He has published over 50 research papers in related venues like Foundations and Trends in IR, the IR Journal, the Journal of Multimedia IR, ISMIR, CMMR, ACM SIGIR, ACM CIKM and ECIR, winning two best paper awards and a best reviewer award. He has been active in the ISMIR community since 2010, both as author and PC member, and is also co-organizer of the MediaEval AcousticBrainz task. He is reviewer for other conferences and journals, such as ACM CIKM, HCOMP, IEEE TASLP, IEEE MM, ACM TWEB, IEEE TKDE or the Information Sciences journal.