@article{activelearningforcrowdsourceddatabases,
  title = {Active Learning for Crowd-Sourced Databases},
  author = {Barzan Mozafari and Purnamrita Sarkar and Michael J. Franklin and Michael. I. Jordan and Samuel Madden},
  year = {2012},
  eprint = {1209.3686},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1209.3686v4},
}