@InProceedings{freitas-EtAl:2015:IWCS2015,
  author    = {Freitas, Andre  and  Efson Sales, Juliano  and  Handschuh, Siegfried  and  Curry, Edward},
  title     = {How hard is this query? Measuring the Semantic Complexity of Schema-agnostic Queries},
  booktitle = {Proceedings of the 11th International Conference on Computational Semantics},
  month     = {April},
  year      = {2015},
  address   = {London, UK},
  publisher = {Association for Computational Linguistics},
  pages     = {294--304},
  url       = {http://www.aclweb.org/anthology/W15-0133}
}