Zhiwei Xu is a research fellow working on Deep Declarative Network (DDN) under the supervision of Professor Stephen Gould at the ANU. From 2017 to 2021, he was a Ph.D. student working on Markov random field optimization and other computer vision topics under the supervision of Professor Richard Hartley and Dr. Thalaiyasingam Ajanthan at the ANU. Prior to that, he worked in industry from 2015 to 2017, obtained his master degree in Electrical Engineering in 2015 and bachelor degree in Electrical Engineering in 2012.