Abstract
In this paper, we present a Multi-Task Deep Neural Network (MT-DNN) for learning representations across multiple natural language understanding (NLU) tasks. MT-DNN not only leverages large amounts of cross-task data, but also benefits from a regularization effect that leads to more general representations to help adapt to new tasks and domains. MT-DNN extends the model proposed in Liu et al. (2015) by incorporating a pre-trained bidirectional transformer language model, known as BERT (Devlin et al., 2018). MT-DNN obtains new state-of-the-art results on ten NLU tasks, including SNLI, SciTail, and eight out of nine GLUE tasks, pushing the GLUE benchmark to 82.7% (2.2% absolute improvement) as of February 25, 2019 on the latest GLUE test set. We also demonstrate using the SNLI and SciTail datasets that the representations learned by MT-DNN allow domain adaptation with substantially fewer in-domain labels than the pre-trained BERT representations. Our code and pre-trained models will be made publicly available.- Anthology ID:
 - P19-1441
 - Volume:
 - Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics
 - Month:
 - July
 - Year:
 - 2019
 - Address:
 - Florence, Italy
 - Editors:
 - Anna Korhonen, David Traum, Lluís Màrquez
 - Venue:
 - ACL
 - SIG:
 - Publisher:
 - Association for Computational Linguistics
 - Note:
 - Pages:
 - 4487–4496
 - Language:
 - URL:
 - https://aclanthology.org/P19-1441
 - DOI:
 - 10.18653/v1/P19-1441
 - Cite (ACL):
 - Xiaodong Liu, Pengcheng He, Weizhu Chen, and Jianfeng Gao. 2019. Multi-Task Deep Neural Networks for Natural Language Understanding. In Proceedings of the 57th Annual Meeting of the Association for Computational Linguistics, pages 4487–4496, Florence, Italy. Association for Computational Linguistics.
 - Cite (Informal):
 - Multi-Task Deep Neural Networks for Natural Language Understanding (Liu et al., ACL 2019)
 - PDF:
 - https://preview.aclanthology.org/ingest-acl-2023-videos/P19-1441.pdf
 - Code
 - namisan/mt-dnn + additional community code
 - Data
 - CoLA, GLUE, MultiNLI, QNLI, Quora Question Pairs, SNLI, SST, SST-2, SciTail