Dynamic Contextualized Word Embeddings

Valentin Hofmann, Janet Pierrehumbert, Hinrich Schütze


Abstract
Static word embeddings that represent words by a single vector cannot capture the variability of word meaning in different linguistic and extralinguistic contexts. Building on prior work on contextualized and dynamic word embeddings, we introduce dynamic contextualized word embeddings that represent words as a function of both linguistic and extralinguistic context. Based on a pretrained language model (PLM), dynamic contextualized word embeddings model time and social space jointly, which makes them attractive for a range of NLP tasks involving semantic variability. We highlight potential application scenarios by means of qualitative and quantitative analyses on four English datasets.
Anthology ID:
2021.acl-long.542
Volume:
Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing (Volume 1: Long Papers)
Month:
August
Year:
2021
Address:
Online
Editors:
Chengqing Zong, Fei Xia, Wenjie Li, Roberto Navigli
Venues:
ACL | IJCNLP
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
6970–6984
Language:
URL:
https://aclanthology.org/2021.acl-long.542
DOI:
10.18653/v1/2021.acl-long.542
Bibkey:
Cite (ACL):
Valentin Hofmann, Janet Pierrehumbert, and Hinrich Schütze. 2021. Dynamic Contextualized Word Embeddings. In Proceedings of the 59th Annual Meeting of the Association for Computational Linguistics and the 11th International Joint Conference on Natural Language Processing (Volume 1: Long Papers), pages 6970–6984, Online. Association for Computational Linguistics.
Cite (Informal):
Dynamic Contextualized Word Embeddings (Hofmann et al., ACL-IJCNLP 2021)
Copy Citation:
PDF:
https://aclanthology.org/2021.acl-long.542.pdf
Video:
 https://aclanthology.org/2021.acl-long.542.mp4
Code
 valentinhofmann/dcwe
Data
Ciao