A Learnable Skill Combination Strategy for Multi-task Learning in Natural Language Understanding
Zhe Yang, Yi Huang, Yaqin Chen, Mengfei Guo, Xiaoting Wu, Junlan Feng
Abstract
In the realm of domain-specific natural language understanding (NLU) tasks, acquiring high-quality labeled data is often arduous, thereby posing significant challenges for effective model training. Multi-task learning (MTL) addresses these limitations by jointly optimizing multiple tasks within a unified framework. In this paper, we introduce a novel sparse NLU multi-task learning framework that decomposes the language model into modular skill components and employs a dynamic, learnable skill-combination mechanism to adaptively handle diverse tasks. Extensive experiments on benchmark NLU datasets demonstrate that our proposed method surpasses conventional multi-task learning approaches in performance.- Anthology ID:
- 2026.findings-acl.1886
- Volume:
- Findings of the Association for Computational Linguistics: ACL 2026
- Month:
- July
- Year:
- 2026
- Address:
- San Diego, California, United States
- Editors:
- Maria Liakata, Viviane P. Moreira, Jiajun Zhang, David Jurgens
- Venue:
- Findings
- SIG:
- Publisher:
- Association for Computational Linguistics
- Note:
- Pages:
- 37839–37845
- Language:
- URL:
- https://preview.aclanthology.org/ingest-acl/2026.findings-acl.1886/
- DOI:
- Cite (ACL):
- Zhe Yang, Yi Huang, Yaqin Chen, Mengfei Guo, Xiaoting Wu, and Junlan Feng. 2026. A Learnable Skill Combination Strategy for Multi-task Learning in Natural Language Understanding. In Findings of the Association for Computational Linguistics: ACL 2026, pages 37839–37845, San Diego, California, United States. Association for Computational Linguistics.
- Cite (Informal):
- A Learnable Skill Combination Strategy for Multi-task Learning in Natural Language Understanding (Yang et al., Findings 2026)
- PDF:
- https://preview.aclanthology.org/ingest-acl/2026.findings-acl.1886.pdf