Before revision:  In this work we investigate the above phenomenon and show that tightness  may not be the determining factor for reduced certified robustness . Concretely, we identify two key features of relaxations that impact training dynamics: continuity and sensitivity.
After revision:  In this work we investigate the above phenomenon and show that tightness alone may not be the determining factor for reduced certified robustness . Concretely, we identify two key features of relaxations that impact training dynamics: continuity and sensitivity.