Automatic query reformulation with syntactic operators to alleviate search difficulty.

@inproceedings{duan-2011-automatic, author = {Huizhong Duan and Rui Li and ChengXiang Zhai}, editor = {Craig Macdonald and Iadh Ounis and Ian Ruthven}, title = {{Automatic query reformulation with syntactic operators to alleviate search difficulty}}, booktitle = {{Proceedings of the 20th ACM Conference on Information and Knowledge Management, CIKM 2011, Glasgow, United Kingdom, October 24-28, 2011}}, pages = {2037--2040}, publisher = {ACM}, year = {2011}, url = {https://doi.org/10.1145/2063576.2063884}, doi = {https://doi.org/10.1145/2063576.2063884} }