@inproceedings{hieu-etal-2026-constructing,
    title = "Constructing a Silver Corpus for Weakly Supervised {V}ietnamese Event Extraction using Cross-Document N-ary Relation Filtering",
    author = "Hiệu, Phạm Xu{\^a}n  and
      Minh, Tuan Vu  and
      Tran, Mai-Vu  and
      Le, Hoang-Quynh",
    editor = {H{\"u}rriyeto{\u{g}}lu, Ali  and
      Thapa, Surendrabikram  and
      Tanev, Hristo},
    booktitle = "Proceedings of the 9th Workshop on Event Extraction and Understanding: Challenges and Applications ({EEUCA} 2026)",
    month = jul,
    year = "2026",
    address = "San Diego, California, USA",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/ingest-acl-workshops/2026.eeuca-1.4/",
    pages = "26--37",
    ISBN = "979-8-89176-402-6",
    abstract = "Event extraction for low-resource languages such as Vietnamese is limited by the lack of large-scale annotated data. To address this, we propose a weakly supervised framework that constructs a silver corpus via pseudo-labeling. We introduce a cross-document n-ary relation filtering strategy to reduce noise by leveraging consistency across multiple articles describing the same event, and further enhance data diversity with schema-based augmentation. Experiments on the BKEE benchmark show consistent improvements, demonstrating the effectiveness of our approach. Data is available at: \url{https://github.com/Larken1612/VietEE2}."
}