Speech-based Slot Filling using Large Language Models

Guangzhi Sun, Shutong Feng, Dongcheng Jiang, Chao Zhang, Milica Gasic, Phil Woodland


Abstract
Recently, advancements in large language models (LLMs) have shown an unprecedented ability across various language tasks. This paper investigates the potential application of LLMs to slot filling with noisy ASR transcriptions, via both in-context learning and task-specific fine-tuning. Dedicated prompt designs and noise-robust LoRA fine-tuning are proposed to improve the robustness of LLMs for slot filling with noisy ASR transcriptions. Moreover, a linearised knowledge injection (LKI) scheme is also proposed to integrate dynamic external knowledge into LLMs. Experiments were performed on SLURP to quantify the performance of LLMs, including GPT-3.5-turbo, GPT-4, LLaMA-13B, LLaMA-2-13B and Vicuna-13B (v1.1 and v1.5) with different ASR error rates. The use of the noise-robust fine-tuning together with LKI for Vicuna-13B-v1.5 achieved 6.7% and 17.6% absolute SLU-F1 improvements compared to a fully fine-tuned Flan-T5-XL model on the limited data setup and the zero-shot setup respectively.
Anthology ID:
2024.findings-acl.379
Volume:
Findings of the Association for Computational Linguistics: ACL 2024
Month:
August
Year:
2024
Address:
Bangkok, Thailand
Editors:
Lun-Wei Ku, Andre Martins, Vivek Srikumar
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
6351–6362
Language:
URL:
https://aclanthology.org/2024.findings-acl.379
DOI:
10.18653/v1/2024.findings-acl.379
Bibkey:
Cite (ACL):
Guangzhi Sun, Shutong Feng, Dongcheng Jiang, Chao Zhang, Milica Gasic, and Phil Woodland. 2024. Speech-based Slot Filling using Large Language Models. In Findings of the Association for Computational Linguistics: ACL 2024, pages 6351–6362, Bangkok, Thailand. Association for Computational Linguistics.
Cite (Informal):
Speech-based Slot Filling using Large Language Models (Sun et al., Findings 2024)
Copy Citation:
PDF:
https://aclanthology.org/2024.findings-acl.379.pdf