Probability ranking principle via optimal expected rank.

@inproceedings{wu-2007-probability, author = {Ho Chung Wu and Robert W. P. Luk and Kam-Fai Wong}, editor = {Wessel Kraaij and Arjen P. de Vries and Charles L. A. Clarke and Norbert Fuhr and Noriko Kando}, title = {{Probability ranking principle via optimal expected rank}}, 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 = {713--714}, publisher = {ACM}, year = {2007}, url = {https://doi.org/10.1145/1277741.1277872}, doi = {https://doi.org/10.1145/1277741.1277872} }