Do Easy Topics Predict Effectiveness Better Than Difficult Topics?

@inproceedings{roitero-2017-easy, author = {Kevin Roitero and Eddy Maddalena and Stefano Mizzaro}, editor = {Joemon M. Jose and Claudia Hauff and Ismail Seng\"{o}r Alting\"{o}vde and Dawei Song and M-Dyaa Albakour and Stuart N. K. Watt and John Tait}, title = {{Do Easy Topics Predict Effectiveness Better Than Difficult Topics?}}, booktitle = {{Advances in Information Retrieval - 39th European Conference on IR Research, ECIR 2017, Aberdeen, UK, April 8-13, 2017, Proceedings}}, series = {Lecture Notes in Computer Science}, volume = {10193}, pages = {605--611}, year = {2017}, url = {https://doi.org/10.1007/978-3-319-56608-5_55}, doi = {https://doi.org/10.1007/978-3-319-56608-5_55} }