Abstract
Pre-trained word embeddings and language model have been shown useful in a lot of tasks. However, both of them cannot directly capture word connections in a sentence, which is important for dependency parsing given its goal is to establish dependency relations between words. In this paper, we propose to implicitly capture word connections from unlabeled data by a word ordering model with self-attention mechanism. Experiments show that these implicit word connections do improve our parsing model. Furthermore, by combining with a pre-trained language model, our model gets state-of-the-art performance on the English PTB dataset, achieving 96.35% UAS and 95.25% LAS.- Anthology ID:
- D18-1311
- Volume:
- Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing
- Month:
- October-November
- Year:
- 2018
- Address:
- Brussels, Belgium
- Editors:
- Ellen Riloff, David Chiang, Julia Hockenmaier, Jun’ichi Tsujii
- Venue:
- EMNLP
- SIG:
- SIGDAT
- Publisher:
- Association for Computational Linguistics
- Note:
- Pages:
- 2857–2863
- Language:
- URL:
- https://aclanthology.org/D18-1311
- DOI:
- 10.18653/v1/D18-1311
- Cite (ACL):
- Wenhui Wang, Baobao Chang, and Mairgup Mansur. 2018. Improved Dependency Parsing using Implicit Word Connections Learned from Unlabeled Data. In Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing, pages 2857–2863, Brussels, Belgium. Association for Computational Linguistics.
- Cite (Informal):
- Improved Dependency Parsing using Implicit Word Connections Learned from Unlabeled Data (Wang et al., EMNLP 2018)
- PDF:
- https://preview.aclanthology.org/nschneid-patch-3/D18-1311.pdf
- Data
- Penn Treebank