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Embedding Hallucination for Few-Shot Language Fine-tuning. (arXiv:2205.01307v1 [cs.CL])
May 4, 2022, 1:11 a.m. | Yiren Jian, Chongyang Gao, Soroush Vosoughi
cs.CL updates on arXiv.org arxiv.org
Few-shot language learners adapt knowledge from a pre-trained model to
recognize novel classes from a few-labeled sentences. In such settings,
fine-tuning a pre-trained language model can cause severe over-fitting. In this
paper, we propose an Embedding Hallucination (EmbedHalluc) method, which
generates auxiliary embedding-label pairs to expand the fine-tuning dataset.
The hallucinator is trained by playing an adversarial game with the
discriminator, such that the hallucinated embedding is indiscriminative to the
real ones in the fine-tuning dataset. By training with the …
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