@article{<a href="http://dblp.uni-trier.de/db/about/bibtex.html">DBLP</a>:journals/pvldb/YuanZWXYH12,
  author    = {Ganzhao Yuan and
               Zhenjie Zhang and
               Marianne Winslett and
               Xiaokui Xiao and
               Yin Yang and
               Zhifeng Hao},
  title     = {Low-Rank Mechanism: Optimizing Batch Queries under Differential
               Privacy},
  journal   = {PVLDB},
  volume    = {5},
  number    = {11},
  year      = {2012},
  pages     = {1352-1363},
  ee        = {http://vldb.org/pvldb/vol5/p1352_ganzhaoyuan_vldb2012.pdf},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}