@inproceedings{he-etal-2023-ccl23,
    title = "{CCL}23-Eval 任务9系统报告:基于重叠片段生成增强阅读理解模型鲁棒性的方法(System Report for {CCL}23-Eval Task 9: Improving {MRC} Robustness with Overlapping Segments Generation for {GCRC}{\_}adv{R}obust)",
    author = "He, Suzhe  and
      Yang, Chongsheng  and
      Shi, Shumin",
    editor = "Sun, Maosong  and
      Qin, Bing  and
      Qiu, Xipeng  and
      Jiang, Jing  and
      Han, Xianpei",
    booktitle = "Proceedings of the 22nd Chinese National Conference on Computational Linguistics (Volume 3: Evaluations)",
    month = aug,
    year = "2023",
    address = "Harbin, China",
    publisher = "Chinese Information Processing Society of China",
    url = "https://preview.aclanthology.org/fix-sig-urls/2023.ccl-3.32/",
    pages = "293--302",
    language = "zho",
    abstract = "``目前机器阅读理解在抽取语义完整的选项证据时存在诸多挑战。现有通过无监督方式进行证据抽取的工作主要分为两类,一是利用静态词向量,采用集束搜索迭代地提取相关句子;另一类是使用实例级监督方法,包括独立式证据抽取和端到端式证据抽取。前者处理流程上较为繁琐,后者在联合训练时存在不稳定性,直接导致模型性能难以稳定提升。在CCL23-Eval 任务9中,本文提出了一种基于重叠片段生成的自适应端到端证据抽取方法。该方法针对证据句边界不明确的问题,通过将文档划分为多个重叠的句子片段,并提取关键部分作为证据来实现整体语义的抽取。同时,将证据提取嵌入模块予以优化,实现了证据片段置信度自动调整。实验结果表明本文所提出方法能够极大地排除冗余内容干扰,仅需一个超参数即可稳定提升阅读理解模型性能,增强了模型鲁棒性。''"
}