@inproceedings {179548, title = {Querying Provenance for Ranking and Recommending}, booktitle = {4th USENIX Workshop on the Theory and Practice of Provenance (TaPP 12)}, year = {2012}, address = {Boston, MA}, url = {https://www.usenix.org/conference/tapp12/workshop-program/presentation/Ives}, publisher = {USENIX Association}, month = jun }