"I know what you did last summer": query logs and user privacy

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\begin{bibtex} @inproceedings{DBLP:conf/cikm/JonesKPT07, title={"I know what you did last summer": query logs and user privacy}, pages={909-914}, year={2007}, crossref={DBLP:conf/cikm/2007}, booktitle={CIKM}, ee={http://doi.acm.org/10.1145/1321440.1321573}, url={http://www.informatik.uni-trier.de/~ley/db/conf/cikm/cikm2007.html#JonesKPT07}, author={Rosie Jones and Ravi Kumar and Bo Pang and Andrew Tomkins} }\end{bibtex}