When Effort Exceeds Expectations: A Theory of Search Task Difficulty (keynote).

@inproceedings{kelly-2015-effort, author = {Diane Kelly}, editor = {Mette Skov and Maria G\"{a}de and Elaine Toms and Mark M. Hall and Hugo C. Huurdeman and Jaap Kamps and Marijn Koolen and Mette Skov and Elaine Toms and David Walsh}, title = {{When Effort Exceeds Expectations: A Theory of Search Task Difficulty (keynote)}}, booktitle = {{Proceedings of the First International Workshop on Supporting Complex Search Tasks co-located with the 37th European Conference on Information Retrieval (ECIR 2015), Vienna, Austria, March 29, 2015}}, series = {CEUR Workshop Proceedings}, volume = {1338}, publisher = {CEUR-WS.org}, year = {2015}, url = {https://ceur-ws.org/Vol-1338/paper_2.pdf} }