@article{hyfadhybridtimefrequencydiffusionwithfre,
  title = {HyFAD: Hybrid Time-Frequency Diffusion with Frequency-Aware Embedding for Time Series Imputation},
  author = {Hongfan Gao and Wangmeng Shen and Bin Yang and Jilin Hu},
  year = {2026},
  eprint = {2606.05239},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.05239},
}