Estimating the query difficulty for information retrieval.

@inproceedings{carmel-2010-estimating, author = {David Carmel and Elad Yom-Tov}, editor = {Fabio Crestani and St\'{e}phane Marchand-Maillet and Hsin-Hsi Chen and Efthimis N. Efthimiadis and Jacques Savoy}, title = {{Estimating the query difficulty for information retrieval}}, booktitle = {{Proceeding of the 33rd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2010, Geneva, Switzerland, July 19-23, 2010}}, pages = {911}, publisher = {ACM}, year = {2010}, url = {https://doi.org/10.1145/1835449.1835683}, doi = {https://doi.org/10.1145/1835449.1835683} }