DemoNSF: A Multi-task Demonstration-based Generative Framework for Noisy Slot Filling Task

Guanting Dong, Tingfeng Hui, Zhuoma GongQue, Jinxu Zhao, Daichi Guo, Gang Zhao, Keqing He, Weiran Xu


Abstract
Recently, prompt-based generative frameworks have shown impressive capabilities in sequence labeling tasks. However, in practical dialogue scenarios, relying solely on simplistic templates and traditional corpora presents a challenge for these methods in generalizing to unknown input perturbations. To address this gap, we propose a multi-task demonstration-based generative framework for noisy slot filling, named DemoNSF. Specifically, we introduce three noisy auxiliary tasks, namely noisy recovery (NR), random mask (RM), and hybrid discrimination (HD), to implicitly capture semantic structural information of input perturbations at different granularities. In the downstream main task, we design a noisy demonstration construction strategy for the generative framework, which explicitly incorporates task-specific information and perturbed distribution during training and inference. Experiments on two benchmarks demonstrate that DemoNSF outperforms all baseline methods and achieves strong generalization. Further analysis provides empirical guidance for the practical application of generative frameworks. Our code is released at https://github.com/dongguanting/Demo-NSF.
Anthology ID:
2023.findings-emnlp.705
Volume:
Findings of the Association for Computational Linguistics: EMNLP 2023
Month:
December
Year:
2023
Address:
Singapore
Editors:
Houda Bouamor, Juan Pino, Kalika Bali
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
10506–10518
Language:
URL:
https://aclanthology.org/2023.findings-emnlp.705
DOI:
10.18653/v1/2023.findings-emnlp.705
Bibkey:
Cite (ACL):
Guanting Dong, Tingfeng Hui, Zhuoma GongQue, Jinxu Zhao, Daichi Guo, Gang Zhao, Keqing He, and Weiran Xu. 2023. DemoNSF: A Multi-task Demonstration-based Generative Framework for Noisy Slot Filling Task. In Findings of the Association for Computational Linguistics: EMNLP 2023, pages 10506–10518, Singapore. Association for Computational Linguistics.
Cite (Informal):
DemoNSF: A Multi-task Demonstration-based Generative Framework for Noisy Slot Filling Task (Dong et al., Findings 2023)
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PDF:
https://aclanthology.org/2023.findings-emnlp.705.pdf