Think Global and Act Local: Bayesian Optimisation over High-Dimensional
          Categorical and Mixed Search Spaces

       Xingchen Wan 1 Vu Nguyen 2 Huong Ha 3 Binxin Ru 1 Cong Lu 1 Michael A. Osborne 1

             Abstract                low-dimensional nor continuous: many large-scale prac-
    High-dimensional black-box optimisation re-        tical problems exhibit complex interactions among high-
    mains an important yet notoriously challenging      dimensional input variables, and  ...