Improving weak ad-hoc queries using wikipedia as external corpus.

@inproceedings{li-2007-improving, author = {Yinghao Li and Robert Wing Pong Luk and Edward Kei Shiu Ho and Korris Fu-Lai Chung}, editor = {Wessel Kraaij and Arjen P. de Vries and Charles L. A. Clarke and Norbert Fuhr and Noriko Kando}, title = {{Improving weak ad-hoc queries using wikipedia as external corpus}}, booktitle = {{SIGIR 2007: Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, Amsterdam, The Netherlands, July 23-27, 2007}}, pages = {797--798}, publisher = {ACM}, year = {2007}, url = {https://doi.org/10.1145/1277741.1277914}, doi = {https://doi.org/10.1145/1277741.1277914} }