@article{herohierarchicalembeddingrefinementforop,
  title = {HERO: Hierarchical Embedding-Refinement for Open-Vocabulary Temporal Sentence Grounding in Videos},
  author = {Tingting Han and Xinsong Tao and Yufei Yin and Min Tan and Sicheng Zhao and Zhou Yu},
  year = {2026},
  eprint = {2603.06732},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2603.06732},
}