@inproceedings{nguyen-etal-2026-tts2,
    title = "{TTS}$^2$: Test-Time Scaling for Flow-Based Text-to-Speech via Multi-stage Reward Modeling on Posterior Mean Projections",
    author = "Nguyen, Tung Luong  and
      Le, Tuan Duy Nguyen  and
      Tran, Nhat Hong  and
      Le, Nhat Minh  and
      Do, Van Hai",
    editor = "Lee, Hung-Yi  and
      Dev, Sunipa  and
      Li, Jessy  and
      Elliott, Desmond",
    booktitle = "Proceedings of the 2026 Conference on Empirical Methods in Natural Language Processing",
    month = oct,
    year = "2026",
    address = "Budapest, Hungary",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2026.emnlp-main.2541/",
    pages = "57786--57797",
    ISBN = "979-8-89176-459-0"
}