Ye, Jiexia, Weiqi Zhang, Ziyue Li, Jia Li, and Fugee Tsung. 2026. “MedSpaformer: A Transferable Transformer With Multi-Granularity Token Sparsification for Medical Time Series Classification”. Proceedings of the AAAI Conference on Artificial Intelligence 40 (33):27791-99. https://doi.org/10.1609/aaai.v40i33.40001.