@inproceedings{zhao-etal-2022-investigating,
    title = "Investigating Ensemble Methods for Model Robustness Improvement of Text Classifiers",
    author = "Zhao, Jieyu  and
      Wang, Xuezhi  and
      Qin, Yao  and
      Chen, Jilin  and
      Chang, Kai-Wei",
    editor = "Goldberg, Yoav  and
      Kozareva, Zornitsa  and
      Zhang, Yue",
    booktitle = "Findings of the Association for Computational Linguistics: EMNLP 2022",
    month = dec,
    year = "2022",
    address = "Abu Dhabi, United Arab Emirates",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/fix-sig-urls/2022.findings-emnlp.118/",
    doi = "10.18653/v1/2022.findings-emnlp.118",
    pages = "1634--1640",
    abstract = "Large pre-trained language models have shown remarkable performance over the past few years. These models, however, sometimes learn superficial features from the dataset and cannot generalize to the distributions that are dissimilar to the training scenario. There have been several approaches proposed to reduce model{'}s reliance on these bias features which can improve model robustness in the out-of-distribution setting. However, existing methods usually use a fixed low-capacity model to deal with various bias features, which ignore the learnability of those features. In this paper, we analyze a set of existing bias features and demonstrate there is no single model that works best for all the cases. We further show that by choosing an appropriate bias model, we can obtain a better robustness result than baselines with a more sophisticated model design."
}