Ferreira, J., 		Porto, F., 		Coutinho, R., & 		Ogasawara, E.
(2018).
 Towards the Optimization of Operators over UDF in Spark.
In <em>Proceedings of the 12th Brazilian e-Science Workshop</em>, (pp. 89-92). Porto Alegre: SBC.
doi:10.5753/bresci.2018.3280