Wu, M., M. Hughes, S. Parbhoo, M. Zazzi, V. Roth, and F. Doshi-Velez. “Beyond Sparsity: Tree Regularization of Deep Models for Interpretability”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 32, no. 1, Apr. 2018, doi:10.1609/aaai.v32i1.11501.