AuGPT: Dialogue with Pre-trained Language Models and Data Augmentation

• URL: http://arxiv.org/abs/2102.05126v1
• Date: Tue, 9 Feb 2021 20:53:34 GMT
• Title: AuGPT: Dialogue with Pre-trained Language Models and Data Augmentation
• Authors: Jon\'a\v{s} Kulh\'anek and Vojt\v{e}ch Hude\v{c}ek and Tom\'a\v{s} Nekvinda and Ond\v{r}ej Du\v{s}ek
• Abstract summary: We introduce modified training objectives for language model finetuning. We employ massive data augmentation via back-translation to increase the diversity of the training data. Our model achieves state-of-the-art performance on the MultiWOZ data and shows competitive performance in human evaluation.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Attention-based pre-trained language models such as GPT-2 brought considerable progress to end-to-end dialogue modelling. However, they also present considerable risks for task-oriented dialogue, such as lack of knowledge grounding or diversity. To address these issues, we introduce modified training objectives for language model finetuning, and we employ massive data augmentation via back-translation to increase the diversity of the training data. We further examine the possibilities of combining data from multiples sources to improve performance on the target dataset. We carefully evaluate our contributions with both human and automatic methods. Our model achieves state-of-the-art performance on the MultiWOZ data and shows competitive performance in human evaluation.

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