@article{aunifiedspdtokentransformerframeworkfore,
  title = {A Unified SPD Token Transformer Framework for EEG Classification: Systematic Comparison of Geometric Embeddings},
  author = {Chi-Sheng Chen and En-Jui Kuo and Guan-Ying Chen and Xinyu Zhang and Fan Zhang},
  year = {2026},
  eprint = {2601.21521},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2601.21521},
}