Due to their similarity-based learning objectives, pretrained sentence encoders often internalize stereotypical assumptions that reflect the social biases that exist within their training corpora. In this paper, we describe several kinds of stereotypes concerning different communities that are present in popular sentence representation models, including pretrained next sentence prediction and contrastive sentence representation models. We compare such models to textual entailment models that learn language logic for a variety of downstream language understanding tasks. By comparing strong pretrained models based on text similarity with textual entailment learning, we conclude that the explicit logic learning with textual entailment can significantly reduce bias and improve the recognition of social communities, without an explicit de-biasing process

本文中，我们描述了几种针对不同社区的刻板印象，这些社区存在于受欢迎的句子表示模型（包括预训练的下个句子预测和对比句子表示模型）中。通过比较基于文本相似性的强预训练模型与学习语言逻辑的文本蕴涵模型，我们得出结论：与显式去偏见流程相比，使用文本蕴涵显式逻辑学习可以显著减少偏见并提高社区的识别。

逻辑抗偏见：文字推断缓解刻板句子推理