Eric C. Jensen, Steven M. Beitzel, David A. Grossman, Ophir Frieder, Abdur Chowdhury. Predicting query difficulty on the web by learning visual clues. In Ricardo A. Baeza-Yates, Nivio Ziviani, Gary Marchionini, Alistair Moffat, John Tait, editors, SIGIR 2005: Proceedings of the 28th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Salvador, Brazil, August 15-19, 2005. pages 615-616, ACM, 2005. [doi]
Abstract is missing.