Abstract
Traditional multi-task learning architectures learn a single model across multiple tasks through a shared encoder followed by task-specific decoders. Learning these models often requires specialized training algorithms that address task-conflict in the shared parameter updates, which otherwise can lead to negative transfer. A new type of multi-task learning within NLP homogenizes multi-task architectures as a shared encoder and language model decoder, which does surprisingly well across a range of diverse tasks. Does this new architecture suffer from task-conflicts that require specialized training algorithms? We study how certain factors in the shift towards text-to-text models affects multi-task conflict and negative transfer, finding that both directional conflict and transfer are surprisingly constant across architectures.- Anthology ID:
- 2022.findings-emnlp.206
- Volume:
- Findings of the Association for Computational Linguistics: EMNLP 2022
- Month:
- December
- Year:
- 2022
- Address:
- Abu Dhabi, United Arab Emirates
- Editors:
- Yoav Goldberg, Zornitsa Kozareva, Yue Zhang
- Venue:
- Findings
- SIG:
- Publisher:
- Association for Computational Linguistics
- Note:
- Pages:
- 2843–2858
- Language:
- URL:
- https://aclanthology.org/2022.findings-emnlp.206
- DOI:
- 10.18653/v1/2022.findings-emnlp.206
- Cite (ACL):
- David Mueller, Nicholas Andrews, and Mark Dredze. 2022. Do Text-to-Text Multi-Task Learners Suffer from Task Conflict?. In Findings of the Association for Computational Linguistics: EMNLP 2022, pages 2843–2858, Abu Dhabi, United Arab Emirates. Association for Computational Linguistics.
- Cite (Informal):
- Do Text-to-Text Multi-Task Learners Suffer from Task Conflict? (Mueller et al., Findings 2022)
- PDF:
- https://preview.aclanthology.org/nschneid-patch-4/2022.findings-emnlp.206.pdf