Selecting effective expansion terms for diversity.

@inproceedings{vargas-2013-selecting, author = {Saul Vargas and Rodrygo L. T. Santos and Craig Macdonald and Iadh Ounis}, editor = {Jo\~{a}o Ferreira and Jo\~{a}o Magalh\~{a}es and P\'{a}vel Calado}, title = {{Selecting effective expansion terms for diversity}}, booktitle = {{Open research Areas in Information Retrieval, OAIR 2013, Lisbon, Portugal, May 15-17, 2013}}, pages = {69--76}, publisher = {ACM}, year = {2013}, url = {http://dl.acm.org/citation.cfm?id=2491767} }