@inproceedings{chen-etal-2026-hierarchical,
    title = "Hierarchical Alignment: Block-Level {L}o{RA}-{DPO} for Preference Tuning in Large Language Models",
    author = "Chen, Yishen  and
      Dong, Qi  and
      Zhang, Yukun",
    editor = "Lee, Hung-Yi  and
      Dev, Sunipa  and
      Li, Jessy  and
      Elliott, Desmond",
    booktitle = "Findings of the {A}ssociation for {C}omputational {L}inguistics: {EMNLP} 2026",
    month = oct,
    year = "2026",
    address = "Budapest, Hungary",
    publisher = "Association for Computational Linguistics",
    url = "https://aclanthology.org/2026.findings-emnlp.345/",
    pages = "7236--7252",
    ISBN = "979-8-89176-462-0"
}