Shu, Yuxuan, and Vasileios Lampos. “Sonnet: Spectral Operator Neural Network for Multivariable Time Series Forecasting”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 40, no. 30, Mar. 2026, pp. 25419-27, doi:10.1609/aaai.v40i30.39736.