@InProceedings{Wang-et-al:2015:IJCAI,
  author    = {Wang, William Yang and Mazaitis, Kathryn and Cohen, William W.},
  title     = {A Soft Version of Predicate Invention Based on Structured Sparsity},
  booktitle = {Proceedings of the 24th International Joint Conference on Artificial Intelligence (IJCAI 2015)},
  month     = {July},
  year      = {2015},
  address   = {Buenos Aires, Argentina},
  publisher = {AAAI}
}