TOOL-ED: Enhancing Empathetic Response Generation with the Tool Calling Capability of LLM

Huiying Cao, Yiqun Zhang, Shi Feng, Xiaocui Yang, Daling Wang, Yifei Zhang


Abstract
Empathetic conversation is a crucial characteristic in daily conversations between individuals. Nowadays, Large Language models (LLMs) have shown outstanding performance in generating empathetic responses. Knowledge bases like COMET can assist LLMs in mitigating illusions and enhancing the understanding of users’ intentions and emotions. However, models remain heavily reliant on fixed knowledge bases and unrestricted incorporation of external knowledge can introduce noise. Tool learning is a flexible end-to-end approach that assists LLMs in handling complex problems. In this paper, we propose Emotional Knowledge Tool Calling (EKTC) framework, which encapsulates the commonsense knowledge bases as empathetic tools, enabling LLMs to integrate external knowledge flexibly through tool calling. In order to adapt the models to the new task, we construct a novel dataset TOOL-ED based on the EMPATHETICDIALOGUE (ED) dataset. We validate EKTC on the ED dataset, and the experimental results demonstrate that our framework can enhance the ability of LLMs to generate empathetic responses effectively. Our code is available at https://anonymous.4open.science/r/EKTC-3FEF.
Anthology ID:
2025.coling-main.355
Volume:
Proceedings of the 31st International Conference on Computational Linguistics
Month:
January
Year:
2025
Address:
Abu Dhabi, UAE
Editors:
Owen Rambow, Leo Wanner, Marianna Apidianaki, Hend Al-Khalifa, Barbara Di Eugenio, Steven Schockaert
Venue:
COLING
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
5305–5320
Language:
URL:
https://aclanthology.org/2025.coling-main.355/
DOI:
Bibkey:
Cite (ACL):
Huiying Cao, Yiqun Zhang, Shi Feng, Xiaocui Yang, Daling Wang, and Yifei Zhang. 2025. TOOL-ED: Enhancing Empathetic Response Generation with the Tool Calling Capability of LLM. In Proceedings of the 31st International Conference on Computational Linguistics, pages 5305–5320, Abu Dhabi, UAE. Association for Computational Linguistics.
Cite (Informal):
TOOL-ED: Enhancing Empathetic Response Generation with the Tool Calling Capability of LLM (Cao et al., COLING 2025)
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PDF:
https://aclanthology.org/2025.coling-main.355.pdf