Dadkhahi, Hamid, Jesus Rios, Karthikeyan Shanmugam, and Payel Das. 2022. “Fourier Representations for Black-Box Optimization over Categorical Variables”. Proceedings of the AAAI Conference on Artificial Intelligence 36 (9):10156-65. https://doi.org/10.1609/aaai.v36i9.21255.