Accelerating Transformers with Spectrum-Preserving Token Merging - Tran, Hoai-Chau; Nguyen, Duy M. H.; Nguyen, Duy M.; Nguyen, TrungTin; Le, Ngan; Xie, Pengtao; Sonntag, Daniel; Zou, James; Nguyen, Binh T.; Niepert, Mathias (Advances in Neural Information Processing Systems, 2024)