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arXiv · 2305.01616

FreeLM: Fine-Tuning-Free Language Model

Xiang Li·Xin Jiang·Xuying Meng·Aixin Sun·Yequan Wang
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Abstract

Pre-trained language models (PLMs) have achieved remarkable success in NLP tasks. Despite the great success, mainstream solutions largely follow the pre-training then finetuning paradigm, which brings in both high deployment costs and low training efficiency. Nevertheless, fine-tuning on a specific task is essential because PLMs are only pre-trained with language signal from large raw data. In this paper, we propose a novel fine-tuning-free strategy for language models, to consider both language signal and teacher signal. Teacher signal is an abstraction of a battery of downstream tasks, provided in a unified proposition format. Trained with both language and strong task-aware teacher signals in an interactive manner, our FreeLM model demonstrates strong generalization and robustness. FreeLM outperforms large models e.g., GPT-3 and InstructGPT, on a range of language understanding tasks in experiments. FreeLM is much smaller with 0.3B parameters, compared to 175B in these models.

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Xiang Li, Xin Jiang, Xuying Meng, Aixin Sun, Yequan Wang. 2023-05-02. FreeLM: Fine-Tuning-Free Language Model. https://arxiv.org/abs/2305.01616

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