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arXiv 2202.01145cs.CL
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相对位置预测作为文本编码器的预训练

Relative Position Prediction as Pre-training for Text Encoders

MIT CSAIL(麻省理工学院计算机科学与人工智能实验室)

Rickard Brüel-Gabrielsson, Chris Scarvelis

摘要:

意义是由它所拥有的公司来定义的。然而,公司是双重的:它基于令牌的身份以及它们的位置(拓扑)。我们认为,一个位置为中心的角度是更普遍和有用的。NLP中经典的MLM和CLM目标很容易被表述为对整个词汇的位置预测。在NLP中采用相对位置编码范式来创建自监督学习的相对标签,我们试图通过下游任务的表现来显示优越的预训练。

英文摘要:

Meaning is defined by the company it keeps. However, company is two-fold: It's based on the identity of tokens and also on their position (topology). We argue that a position-centric perspective is more general and useful. The classic MLM and CLM objectives in NLP are easily phrased as position predictions over the whole vocabulary. Adapting the relative position encoding paradigm in NLP to create relative labels for self-supervised learning, we seek to show superior pre-training judged by performance on downstream tasks.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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