KokoroChat: A Japanese Psychological Counseling Dialogue Dataset Collected via Role-Playing by Trained Counselors

Fuente: arXiv
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Main Authors: Qi, Zhiyang, Kaneko, Takumasa, Takamizo, Keiko, Ukiyo, Mariko, Inaba, Michimasa
Format: Preprint
Published: 2025
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author Qi, Zhiyang
Kaneko, Takumasa
Takamizo, Keiko
Ukiyo, Mariko
Inaba, Michimasa
author_facet Qi, Zhiyang
Kaneko, Takumasa
Takamizo, Keiko
Ukiyo, Mariko
Inaba, Michimasa
contents Generating psychological counseling responses with language models relies heavily on high-quality datasets. Crowdsourced data collection methods require strict worker training, and data from real-world counseling environments may raise privacy and ethical concerns. While recent studies have explored using large language models (LLMs) to augment psychological counseling dialogue datasets, the resulting data often suffers from limited diversity and authenticity. To address these limitations, this study adopts a role-playing approach where trained counselors simulate counselor-client interactions, ensuring high-quality dialogues while mitigating privacy risks. Using this method, we construct KokoroChat, a Japanese psychological counseling dialogue dataset comprising 6,589 long-form dialogues, each accompanied by comprehensive client feedback. Experimental results demonstrate that fine-tuning open-source LLMs with KokoroChat improves both the quality of generated counseling responses and the automatic evaluation of counseling dialogues. The KokoroChat dataset is available at https://github.com/UEC-InabaLab/KokoroChat.
format Preprint
id arxiv_https___arxiv_org_abs_2506_01357
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle KokoroChat: A Japanese Psychological Counseling Dialogue Dataset Collected via Role-Playing by Trained Counselors
Qi, Zhiyang
Kaneko, Takumasa
Takamizo, Keiko
Ukiyo, Mariko
Inaba, Michimasa
Computation and Language
Artificial Intelligence
Generating psychological counseling responses with language models relies heavily on high-quality datasets. Crowdsourced data collection methods require strict worker training, and data from real-world counseling environments may raise privacy and ethical concerns. While recent studies have explored using large language models (LLMs) to augment psychological counseling dialogue datasets, the resulting data often suffers from limited diversity and authenticity. To address these limitations, this study adopts a role-playing approach where trained counselors simulate counselor-client interactions, ensuring high-quality dialogues while mitigating privacy risks. Using this method, we construct KokoroChat, a Japanese psychological counseling dialogue dataset comprising 6,589 long-form dialogues, each accompanied by comprehensive client feedback. Experimental results demonstrate that fine-tuning open-source LLMs with KokoroChat improves both the quality of generated counseling responses and the automatic evaluation of counseling dialogues. The KokoroChat dataset is available at https://github.com/UEC-InabaLab/KokoroChat.
title KokoroChat: A Japanese Psychological Counseling Dialogue Dataset Collected via Role-Playing by Trained Counselors
topic Computation and Language
Artificial Intelligence
url https://arxiv.org/abs/2506.01357