Diversifying search results.

@inproceedings{agrawal-2009-diversifying, author = {Rakesh Agrawal and Sreenivas Gollapudi and Alan Halverson and Samuel Ieong}, editor = {Ricardo Baeza-Yates and Paolo Boldi and Berthier A. Ribeiro-Neto and Berkant Barla Cambazoglu}, title = {{Diversifying search results}}, booktitle = {{Proceedings of the Second International Conference on Web Search and Web Data Mining, WSDM 2009, Barcelona, Spain, February 9-11, 2009}}, pages = {5--14}, publisher = {ACM}, year = {2009}, url = {https://doi.org/10.1145/1498759.1498766}, doi = {https://doi.org/10.1145/1498759.1498766} }