Differentiable Prompt Makes Pre-trained Language Models Better Few-shot LearnersDownload PDF

29 Sept 2021, 00:30 (edited 07 Mar 2022)ICLR 2022 PosterReaders: Everyone
  • Keywords: prompt-tuning, pre-trained language model, few-shot learning
  • Abstract: Large-scale pre-trained language models have contributed significantly to natural language processing by demonstrating remarkable abilities as few-shot learners. However, their effectiveness depends mainly on scaling the model parameters and prompt design, hindering their implementation in most real-world applications. This study proposes a novel pluggable, extensible, and efficient approach named DifferentiAble pRompT (DART), which can convert small language models into better few-shot learners. The main principle behind this approach involves reformulating potential natural language processing tasks into the task of a pre-trained language model and differentially optimizing the prompt template as well as the target label with backpropagation. Furthermore, the proposed approach can be: (i) Plugged to any pre-trained language models; (ii) Extended to widespread classification tasks. A comprehensive evaluation of standard NLP tasks demonstrates that the proposed approach achieves a better few-shot performance.
  • One-sentence Summary: A differentiable prompt learning method for few-shot NLP with optimized prompt templates as well as labels.
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