@Unpublished{hoang18:_polic_funct_machin_learn_system, author = {Thai Son Hoang and Naoto Sato and Tomoyuki Myojin and Michael Butler and Yuichiroh Nakagawa and Hideto Ogawa}, title = {Policing Functions for Machine Learning Systems}, note = {In Workshop on Verification and Validation of Autonomous Systems. \url{https://eprints.soton.ac.uk/421233/}}, month = may, year = 2018}