1. As the paper primarily focuses on applying quantum computing to global Lipschitz constant estimation, it is uncertain whether the ICLR community will find this topic compelling.
2. The paper lacks discussion on the theoretical guarantee about the approximation ratio of the hierarchical strategy to the global optimal of original QUBO.
3. The experimental results are derived entirely from simulations under ideal conditions, without consideration for practical aspects of quantum devices such as finite shots, device noise, and limited coherence time. These non-ignorable imperfections could significantly impact the quality of solutions obtained from quantum algorithms in practice.
2. The paper lacks discussion on the theoretical guarantee about the approximation ratio of the hierarchical strategy to the global optimal of original QUBO.