@article{worstcaseoptimalsubmodularextensionsfor,
  title = {Worst-case Optimal Submodular Extensions for Marginal Estimation},
  author = {Pankaj Pansari and Chris Russell and M. Pawan Kumar},
  year = {2018},
  eprint = {1801.06490},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1801.06490v1},
}