@article{efficientdocumentindexingusingpivottree,
  title = {Efficient Document Indexing Using Pivot Tree},
  author = {Gaurav Singh and Benjamin Piwowarski},
  year = {2016},
  eprint = {1605.06693},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1605.06693v1},
}