@article{beyondsufficiencytimeseriesexplanationwi,
  title = {Beyond Sufficiency: Time Series Explanation with Counterfactual Necessity},
  author = {Hongnan Ma and Yiwei Shi and Mengyue Yang and Weiru Liu},
  year = {2026},
  eprint = {2607.21573},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.21573},
}