Evangelos Kanoulas is a postdoctoral researcher (Marie Curie fellow) in the Department of Information Studies at the University of Sheffield (UK). He received his Ph.D. from Northeastern University, Boston (USA). His main research interest is evaluation methods for information retrieval. He has published papers in SIGIR, CIKM, ECIR, VLDB and ICDE. Further, Evangelos was actively involved in coordinating the Million Query Track in TREC 2007 - 2009 and he is one of the co-coordinators of the TREC 2010 Session Track.