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arXiv · 2009.07408

Retrofitting Structure-aware Transformer Language Model for End Tasks

Hao Fei·Yafeng Ren·Donghong Ji
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Abstract

We consider retrofitting structure-aware Transformer-based language model for facilitating end tasks by proposing to exploit syntactic distance to encode both the phrasal constituency and dependency connection into the language model. A middle-layer structural learning strategy is leveraged for structure integration, accomplished with main semantic task training under multi-task learning scheme. Experimental results show that the retrofitted structure-aware Transformer language model achieves improved perplexity, meanwhile inducing accurate syntactic phrases. By performing structure-aware fine-tuning, our model achieves significant improvements for both semantic- and syntactic-dependent tasks.

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Hao Fei, Yafeng Ren, Donghong Ji. 2020-09-16. Retrofitting Structure-aware Transformer Language Model for End Tasks. https://arxiv.org/abs/2009.07408

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